def __init__(self, ipp1="127.0.0.1", ipp2="127.0.0.1", ipp3="127.0.0.1", ipp4="127.0.0.1", iptx="127.0.0.1", samp_rate=10000):
gr.top_block.__init__(self, "OFDM Rx")
##################################################
# Parameters
##################################################
self.ipp1 = ipp1
self.ipp2 = ipp2
self.ipp3 = ipp3
self.ipp4 = ipp4
self.iptx = iptx
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, 0j, 0j, 0j, 0j]
self.sync_word1 = sync_word1 = [0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)
self.packet_len = packet_len = 96
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)
##################################################
# Blocks
##################################################
self.zeromq_push_sink_0_0_1_0 = zeromq.push_sink(gr.sizeof_gr_complex, 64, "tcp://"+ ipp2 + ":55521", 100, True)
self.zeromq_push_sink_0_0_1 = zeromq.push_sink(gr.sizeof_gr_complex, 64, "tcp://"+ ipp2 + ":55520", 100, True)
self.zeromq_pull_source_0_0_0 = zeromq.pull_source(gr.sizeof_char, 1, "tcp://"+ ipp1 + ":55511", 100, True)
self.zeromq_pull_source_0_0 = zeromq.pull_source(gr.sizeof_gr_complex, 1, "tcp://"+ ipp1 + ":55510", 100, True)
self.zeromq_pull_msg_source_0 = zeromq.pull_msg_source("tcp://"+ ipp3 + ":55530", 100)
self.digital_header_payload_demux_0 = digital.header_payload_demux(
3,
fft_len,
fft_len/4,
length_tag_key,
"",
True,
gr.sizeof_gr_complex,
"rx_time",
samp_rate,
(),
)
##################################################
# Connections
##################################################
self.msg_connect((self.zeromq_pull_msg_source_0, 'out'), (self.digital_header_payload_demux_0, 'header_data'))
self.connect((self.digital_header_payload_demux_0, 0), (self.zeromq_push_sink_0_0_1, 0))
self.connect((self.digital_header_payload_demux_0, 1), (self.zeromq_push_sink_0_0_1_0, 0))
self.connect((self.zeromq_pull_source_0_0, 0), (self.digital_header_payload_demux_0, 0))
self.connect((self.zeromq_pull_source_0_0_0, 0), (self.digital_header_payload_demux_0, 1))
def set_occupied_carriers(self, occupied_carriers):
self.occupied_carriers = occupied_carriers
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key,
bits_per_header_sym=self.header_mod.bits_per_symbol(),
bits_per_payload_sym=self.payload_mod.bits_per_symbol(),
scramble_header=True))
self.set_len_ocup_carr(len(self.occupied_carriers[0]))
self.set_payload_equalizer(
digital.ofdm_equalizer_simpledfe(self.fft_len,
self.payload_mod.base(),
self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols, 1))
self.set_header_equalizer(
digital.ofdm_equalizer_simpledfe(self.fft_len,
self.header_mod.base(),
self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols))
self.set_active_carriers(len(self.occupied_carriers[0]) + 4)
def set_occupied_carriers(self, occupied_carriers):
self.occupied_carriers = occupied_carriers
self.set_header_equalizer(
digital.ofdm_equalizer_simpledfe(self.fft_len,
self.header_mod.base(),
self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols))
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key,
bits_per_header_sym=self.header_mod.bits_per_symbol(),
bits_per_payload_sym=self.payload_mod.bits_per_symbol(),
scramble_header=False))
self.set_payload_equalizer(
digital.ofdm_equalizer_simpledfe(self.fft_len,
self.payload_mod.base(),
self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols, 1))
self.OFDM_TX_Phase_1_0.set_occupied_carriers(self.occupied_carriers)
self.ofdm_rx_phase_1_0.set_occupied_carriers(self.occupied_carriers)
def test_004_ofdm_scramble(self):
"""
Test scrambling for OFDM header gen
"""
header_len = 32
packet_length = 23
packet_len_tagname = "packet_len"
frame_len_tagname = "frame_len"
data, tags = tagged_streams.packets_to_vectors([range(packet_length),range(packet_length),], packet_len_tagname)
src = blocks.vector_source_b(data, False, 1, tags)
header_formatter = digital.packet_header_ofdm(
(range(32),), # 32 carriers are occupied (which doesn't matter here)
1, # 1 OFDM symbol per header (= 32 bits)
packet_len_tagname,
frame_len_tagname,
"packet_num",
1, # 1 bit per header symbols (BPSK)
2, # 2 bits per payload symbol (QPSK)
scramble_header=True
)
header_gen = digital.packet_headergenerator_bb(header_formatter.base())
header_parser = digital.packet_headerparser_b(header_formatter.base())
sink = blocks.message_debug()
self.tb.connect(src, header_gen, header_parser)
self.tb.msg_connect(header_parser, "header_data", sink, "store")
self.tb.start()
time.sleep(1)
self.tb.stop()
self.tb.wait()
msg = pmt.to_python(sink.get_message(0))
self.assertEqual(msg, {'packet_len': packet_length, 'packet_num': 0, 'frame_len': 4})
msg = pmt.to_python(sink.get_message(1))
self.assertEqual(msg, {'packet_len': packet_length, 'packet_num': 1, 'frame_len': 4})
def create_header_demod_blocks(self):
self.hdr_fft = fft.fft_vcc(self.fft_len, True, (), True, 1)
self.chanest = digital.ofdm_chanest_vcvc(self.sync_words[0],
self.sync_words[1], 1, 0, 3,
False)
hdr_equalizer = digital.ofdm_equalizer_simpledfe(
self.fft_len, self.header_const.base(), self.occupied_carriers,
self.pilot_carriers, self.pilot_symbols)
self.hdr_frame_eq = digital.ofdm_frame_equalizer_vcvc(
hdr_equalizer.base(), self.cp_len, self.rx_length_tag_key, True, 1)
self.hdr_serializer = digital.ofdm_serializer_vcc(
self.fft_len, self.occupied_carriers, self.rx_length_tag_key, "",
0, "", True)
self.hdr_const_decoder = digital.constellation_decoder_cb(
self.header_const.base())
header_formatter = digital.packet_header_ofdm(
self.occupied_carriers,
1,
self.len_tag_key,
frame_len_tag_key=self.rx_length_tag_key,
bits_per_header_sym=self.header_const.bits_per_symbol(),
bits_per_payload_sym=self.payload_const.bits_per_symbol(),
scramble_header=False)
self.hdr_parser = digital.packet_headerparser_b(
header_formatter.base())
def test_004_8bits_formatter_ofdm(self):
occupied_carriers = ((1, 2, 3, 5, 6, 7), )
# 3 PDUs: | | | |
data = (1, 2, 3, 4, 1, 2, 1, 2, 3, 4)
tagname = "packet_len"
tag1 = gr.tag_t()
tag1.offset = 0
tag1.key = pmt.string_to_symbol(tagname)
tag1.value = pmt.from_long(4)
tag2 = gr.tag_t()
tag2.offset = 4
tag2.key = pmt.string_to_symbol(tagname)
tag2.value = pmt.from_long(2)
tag3 = gr.tag_t()
tag3.offset = 6
tag3.key = pmt.string_to_symbol(tagname)
tag3.value = pmt.from_long(4)
src = blocks.vector_source_b(data, False, 1, (tag1, tag2, tag3))
formatter_object = digital.packet_header_ofdm(occupied_carriers, 1,
tagname)
self.assertEqual(formatter_object.header_len(), 6)
self.assertEqual(pmt.symbol_to_string(formatter_object.len_tag_key()),
tagname)
header = digital.packet_headergenerator_bb(
formatter_object.formatter(), tagname)
sink = blocks.vector_sink_b()
self.tb.connect(src, header, sink)
self.tb.run()
expected_data = (0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0)
self.assertEqual(sink.data(), expected_data)
def set_occupied_carriers(self, occupied_carriers):
self.occupied_carriers = occupied_carriers
self.set_bits_per_symbol_0(len(self.occupied_carriers[0]))
self.set_hdr_format(
digital.header_format_ofdm(
self.occupied_carriers,
1,
self.length_tag_key,
))
self.set_header_equalizer(
digital.ofdm_equalizer_simpledfe(self.fft_len, header_mod.base(),
self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols))
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key_0,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=8,
scramble_header=False))
self.set_payload_equalizer(
digital.ofdm_equalizer_static(self.fft_len, self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols, 1))
self.set_variable_0(len(self.occupied_carriers[0]))
def set_occupied_carriers(self, occupied_carriers):
self.occupied_carriers = occupied_carriers
self.set_header_equalizer(
digital.ofdm_equalizer_simpledfe(
self.fft_len, self.header_mod.base(), self.occupied_carriers, self.pilot_carriers, self.pilot_symbols
)
)
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key,
bits_per_header_sym=self.header_mod.bits_per_symbol(),
bits_per_payload_sym=self.payload_mod.bits_per_symbol(),
scramble_header=False,
)
)
self.set_payload_equalizer(
digital.ofdm_equalizer_simpledfe(
self.fft_len,
self.payload_mod.base(),
self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols,
1,
)
)
def test_004_8bits_formatter_ofdm (self):
occupied_carriers = ((1, 2, 3, 5, 6, 7),)
# 3 PDUs: | | | |
data = (1, 2, 3, 4, 1, 2, 1, 2, 3, 4)
tagname = "packet_len"
tag1 = gr.tag_t()
tag1.offset = 0
tag1.key = pmt.string_to_symbol(tagname)
tag1.value = pmt.from_long(4)
tag2 = gr.tag_t()
tag2.offset = 4
tag2.key = pmt.string_to_symbol(tagname)
tag2.value = pmt.from_long(2)
tag3 = gr.tag_t()
tag3.offset = 6
tag3.key = pmt.string_to_symbol(tagname)
tag3.value = pmt.from_long(4)
src = blocks.vector_source_b(data, False, 1, (tag1, tag2, tag3))
formatter_object = digital.packet_header_ofdm(occupied_carriers, 1, tagname)
self.assertEqual(formatter_object.header_len(), 6)
self.assertEqual(pmt.symbol_to_string(formatter_object.len_tag_key()), tagname)
header = digital.packet_headergenerator_bb(formatter_object.formatter(), tagname)
sink = blocks.vector_sink_b()
self.tb.connect(src, header, sink)
self.tb.run()
expected_data = (
0, 0, 1, 0, 0, 0,
0, 1, 0, 0, 0, 0,
0, 0, 1, 0, 0, 0
)
self.assertEqual(sink.data(), expected_data)
def set_packet_length_tag_key(self, packet_length_tag_key):
self.packet_length_tag_key = packet_length_tag_key
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key,
bits_per_header_sym=self.header_mod.bits_per_symbol(),
bits_per_payload_sym=self.payload_mod.bits_per_symbol(),
scramble_header=True))
def set_length_tag_key_rx(self, length_tag_key_rx):
self.length_tag_key_rx = length_tag_key_rx
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key_rx,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False))
def __init__(self, ipp1="127.0.0.1", ipp2="127.0.0.1", ipp3="127.0.0.1", ipp4="127.0.0.1", iptx="127.0.0.1", samp_rate=100):
gr.top_block.__init__(self, "OFDM Rx")
##################################################
# Parameters
##################################################
self.ipp1 = ipp1
self.ipp2 = ipp2
self.ipp3 = ipp3
self.ipp4 = ipp4
self.iptx = iptx
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, 0j, 0j, 0j, 0j]
self.sync_word1 = sync_word1 = [0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)
self.packet_len = packet_len = 96
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)
##################################################
# Blocks
##################################################
self.zeromq_pull_source_0_0_0_0_0_0 = zeromq.pull_source(gr.sizeof_gr_complex, 64, "tcp://" + ipp2 + ":55521", 100, True)
self.my_number_sync_timestamp_0 = my.number_sync_timestamp()
self.fft_vxx_1 = fft.fft_vcc(fft_len, True, (), True, 1)
self.digital_ofdm_serializer_vcc_payload = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_key, packet_length_tag_key, 1, "", True)
self.digital_ofdm_frame_equalizer_vcvc_1 = digital.ofdm_frame_equalizer_vcvc(payload_equalizer.base(), fft_len/4, length_tag_key, True, 0)
self.digital_crc32_bb_0 = digital.crc32_bb(True, packet_length_tag_key, True)
self.digital_constellation_decoder_cb_1 = digital.constellation_decoder_cb(payload_mod.base())
self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True, gr.GR_LSB_FIRST)
##################################################
# Connections
##################################################
self.connect((self.blocks_repack_bits_bb_0, 0), (self.digital_crc32_bb_0, 0))
self.connect((self.digital_constellation_decoder_cb_1, 0), (self.blocks_repack_bits_bb_0, 0))
self.connect((self.digital_crc32_bb_0, 0), (self.my_number_sync_timestamp_0, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_1, 0), (self.digital_ofdm_serializer_vcc_payload, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload, 0), (self.digital_constellation_decoder_cb_1, 0))
self.connect((self.fft_vxx_1, 0), (self.digital_ofdm_frame_equalizer_vcvc_1, 0))
self.connect((self.zeromq_pull_source_0_0_0_0_0_0, 0), (self.fft_vxx_1, 0))
def set_length_tag_key(self, length_tag_key):
self.length_tag_key = length_tag_key
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key,
bits_per_header_sym=self.header_mod.bits_per_symbol(),
bits_per_payload_sym=self.payload_mod.bits_per_symbol(),
scramble_header=False,
)
)
def __init__(self, ipp1="127.0.0.1", ipp2="127.0.0.1", ipp3="127.0.0.1", ipp4="127.0.0.1", iptx="127.0.0.1", samp_rate=10000):
gr.top_block.__init__(self, "OFDM Rx")
##################################################
# Parameters
##################################################
self.ipp1 = ipp1
self.ipp2 = ipp2
self.ipp3 = ipp3
self.ipp4 = ipp4
self.iptx = iptx
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, 0j, 0j, 0j, 0j]
self.sync_word1 = sync_word1 = [0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]
self.packet_len = packet_len = 96
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)
##################################################
# Blocks
##################################################
self.zeromq_push_sink_0_0_0 = zeromq.push_sink(gr.sizeof_char, 1, "tcp://"+ ipp1 + ":55511", 100, True)
self.zeromq_push_sink_0_0 = zeromq.push_sink(gr.sizeof_gr_complex, 1, "tcp://"+ ipp1 + ":55510", 100, True)
self.zeromq_pull_source_0 = zeromq.pull_source(gr.sizeof_gr_complex, 1, "tcp://"+ iptx + ":55500", 100, True)
self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(fft_len, fft_len/4, False)
self.blocks_multiply_xx_1 = blocks.multiply_vcc(1)
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex*1, fft_len+fft_len/4)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(-2.0/fft_len)
##################################################
# Connections
##################################################
self.connect((self.analog_frequency_modulator_fc_0, 0), (self.blocks_multiply_xx_1, 0))
self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_1, 1))
self.connect((self.blocks_multiply_xx_1, 0), (self.zeromq_push_sink_0_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 0), (self.analog_frequency_modulator_fc_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 1), (self.zeromq_push_sink_0_0_0, 0))
self.connect((self.zeromq_pull_source_0, 0), (self.blocks_delay_0, 0))
self.connect((self.zeromq_pull_source_0, 0), (self.digital_ofdm_sync_sc_cfb_0, 0))
def set_occupied_carriers(self, occupied_carriers):
self.occupied_carriers = occupied_carriers
self.set_header_equalizer(
digital.ofdm_equalizer_static(self.fft_len, self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols, 0, True))
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False))
def set_payload_mod(self, payload_mod):
self.payload_mod = payload_mod
self.set_payload_equalizer(
digital.ofdm_equalizer_simpledfe(self.fft_len,
self.payload_mod.base(),
self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols, 0, 1))
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key,
bits_per_header_sym=self.header_mod.bits_per_symbol(),
bits_per_payload_sym=self.payload_mod.bits_per_symbol(),
scramble_header=False))
def test_004_8bits_formatter_ofdm(self):
occupied_carriers = ((1, 2, 3, 5, 6, 7), )
# 3 packets: | | | |
data, tags = self.setup_data_tags(((1, 2, 3, 4), (1, 2), (1, 2, 3, 4)))
src = blocks.vector_source_b(data, tags=tags)
formatter_object = digital.packet_header_ofdm(occupied_carriers, 1,
self.tsb_key)
self.assertEqual(formatter_object.header_len(), 6)
self.assertEqual(pmt.symbol_to_string(formatter_object.len_tag_key()),
self.tsb_key)
header = digital.packet_headergenerator_bb(
formatter_object.formatter(), self.tsb_key)
sink = blocks.vector_sink_b()
self.tb.connect(src, header, sink)
self.tb.run()
expected_data = [0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0]
self.assertEqual(sink.data(), expected_data)
def test_004_ofdm_scramble(self):
"""
Test scrambling for OFDM header gen
"""
header_len = 32
packet_length = 23
packet_len_tagname = "packet_len"
frame_len_tagname = "frame_len"
data, tags = tagged_streams.packets_to_vectors([
list(range(packet_length)),
list(range(packet_length)),
], packet_len_tagname)
src = blocks.vector_source_b(data, False, 1, tags)
header_formatter = digital.packet_header_ofdm(
# 32 carriers are occupied (which doesn't matter here)
(
list(range(32)), ),
1, # 1 OFDM symbol per header (= 32 bits)
packet_len_tagname,
frame_len_tagname,
"packet_num",
1, # 1 bit per header symbols (BPSK)
2, # 2 bits per payload symbol (QPSK)
scramble_header=True)
header_gen = digital.packet_headergenerator_bb(header_formatter.base())
header_parser = digital.packet_headerparser_b(header_formatter.base())
sink = blocks.message_debug()
self.tb.connect(src, header_gen, header_parser)
self.tb.msg_connect(header_parser, "header_data", sink, "store")
self.tb.start()
time.sleep(1)
self.tb.stop()
self.tb.wait()
msg = pmt.to_python(sink.get_message(0))
self.assertEqual(msg, {
'packet_len': packet_length,
'packet_num': 0,
'frame_len': 4
})
msg = pmt.to_python(sink.get_message(1))
self.assertEqual(msg, {
'packet_len': packet_length,
'packet_num': 1,
'frame_len': 4
})
def test_004_8bits_formatter_ofdm (self):
occupied_carriers = ((1, 2, 3, 5, 6, 7),)
# 3 packets: | | | |
data, tags = self.setup_data_tags(((1, 2, 3, 4), (1, 2), (1, 2, 3, 4)))
src = blocks.vector_source_b(data, tags=tags)
formatter_object = digital.packet_header_ofdm(occupied_carriers, 1, self.tsb_key)
self.assertEqual(formatter_object.header_len(), 6)
self.assertEqual(pmt.symbol_to_string(formatter_object.len_tag_key()), self.tsb_key)
header = digital.packet_headergenerator_bb(formatter_object.formatter(), self.tsb_key)
sink = blocks.vector_sink_b()
self.tb.connect(src, header, sink)
self.tb.run()
expected_data = (
0, 0, 1, 0, 0, 0,
0, 1, 0, 0, 0, 0,
0, 0, 1, 0, 0, 0
)
self.assertEqual(sink.data(), expected_data)
def set_header_mod(self, header_mod):
self.header_mod = header_mod
self.set_header_equalizer(
digital.ofdm_equalizer_simpledfe(self.fft_len,
self.header_mod.base(),
self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols))
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key,
bits_per_header_sym=self.header_mod.bits_per_symbol(),
bits_per_payload_sym=self.payload_mod.bits_per_symbol(),
scramble_header=False))
self.digital_chunks_to_symbols_xx_0.set_symbol_table(
(self.header_mod.points()))
def test_003_ofdm (self):
""" Header 1: 193 bytes
Header 2: 8 bytes
2 bits per complex symbol, 32 carriers => 64 bits = 8 bytes per OFDM symbol
4 carriers => 8 bits = 1 byte per OFDM symbol
8 carriers => 16 bits = 2 bytes per OFDM symbol
Means we need 52 carriers to store the 193 bytes.
"""
encoded_headers = (
# | Number of bytes | Packet number | CRC
1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0,
0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0,
)
packet_len_tagname = "packet_len"
frame_len_tagname = "frame_len"
src = blocks.vector_source_b(encoded_headers)
header_formatter = digital.packet_header_ofdm(
(list(range(32)),list(range(4)),list(range(8))), # 32/4/8 carriers are occupied (which doesn't matter here)
1, # 1 OFDM symbol per header (= 32 bits)
packet_len_tagname,
frame_len_tagname,
"packet_num",
1, # 1 bit per header symbols (BPSK)
2 # 2 bits per payload symbol (QPSK)
)
parser = digital.packet_headerparser_b(header_formatter.base())
sink = blocks.message_debug()
self.tb.connect(src, parser)
self.tb.msg_connect(parser, "header_data", sink, "store")
self.tb.start()
time.sleep(1)
self.tb.stop()
self.tb.wait()
self.assertEqual(sink.num_messages(), 2)
msg1 = pmt.to_python(sink.get_message(0))
msg2 = pmt.to_python(sink.get_message(1))
# Multiply with 4 because unpacked bytes have only two bits
self.assertEqual(msg1, {'packet_len': 193*4, 'frame_len': 52, 'packet_num': 0})
self.assertEqual(msg2, {'packet_len': 8*4, 'frame_len': 1, 'packet_num': 1})
def set_payload_mod(self, payload_mod):
self.payload_mod = payload_mod
self.set_header_formatter(
digital.packet_header_ofdm(
self.occupied_carriers,
n_syms=1,
len_tag_key=self.packet_length_tag_key,
frame_len_tag_key=self.length_tag_key,
bits_per_header_sym=self.header_mod.bits_per_symbol(),
bits_per_payload_sym=self.payload_mod.bits_per_symbol(),
scramble_header=False,
)
)
self.set_payload_equalizer(
digital.ofdm_equalizer_simpledfe(
self.fft_len,
self.payload_mod.base(),
self.occupied_carriers,
self.pilot_carriers,
self.pilot_symbols,
1,
)
)
self.blocks_repack_bits_bb_0.set_k_and_l(self.payload_mod.bits_per_symbol(), 8)
def __init__(self):
gr.top_block.__init__(self, "Robot")
Qt.QWidget.__init__(self)
self.setWindowTitle("Robot")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "robot")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((
1,
1,
1,
-1,
), )
self.pilot_carriers = pilot_carriers = ((
-21,
-7,
7,
21,
), )
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (
range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) +
range(8, 21) + range(22, 27), )
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [
0j, 0j, 0j, 0j, 0j, 0j, (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (1 + 0j), (-1 + 0j), 0j, (1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j),
(1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
0j, 0j, 0j, 0j, 0j
]
self.sync_word1 = sync_word1 = [
0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
0., 0., 0., 0., 0.
]
self.samp_rate = samp_rate = 5000000
self.rolloff = rolloff = 0
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols, 1)
self.packet_len = packet_len = 96
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols)
##################################################
# Blocks
##################################################
self.uhd_usrp_sink_0 = uhd.usrp_sink(
",".join(("serial=30CEEB2", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_sink_0.set_samp_rate(samp_rate)
self.uhd_usrp_sink_0.set_center_freq(2.492e9, 0)
self.uhd_usrp_sink_0.set_gain(200, 0)
self.uhd_usrp_sink_0.set_antenna("TX/RX", 0)
self.qtgui_time_sink_x_0 = qtgui.time_sink_c(
1024, #size
samp_rate, #samp_rate
"", #name
1 #number of inputs
)
self.qtgui_time_sink_x_0.set_update_time(0.10)
self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
self.qtgui_time_sink_x_0.set_y_label("Amplitude", "")
self.qtgui_time_sink_x_0.enable_tags(-1, True)
self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE,
qtgui.TRIG_SLOPE_POS, 0.0, 0,
0, "")
self.qtgui_time_sink_x_0.enable_autoscale(False)
self.qtgui_time_sink_x_0.enable_grid(False)
self.qtgui_time_sink_x_0.enable_control_panel(False)
if not True:
self.qtgui_time_sink_x_0.disable_legend()
labels = ["", "", "", "", "", "", "", "", "", ""]
widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
colors = [
"blue", "red", "green", "black", "cyan", "magenta", "yellow",
"dark red", "dark green", "blue"
]
styles = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2 * 1):
if len(labels[i]) == 0:
if (i % 2 == 0):
self.qtgui_time_sink_x_0.set_line_label(
i, "Re{{Data {0}}}".format(i / 2))
else:
self.qtgui_time_sink_x_0.set_line_label(
i, "Im{{Data {0}}}".format(i / 2))
else:
self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_0_win = sip.wrapinstance(
self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_time_sink_x_0_win)
self.fft_vxx_0_0 = fft.fft_vcc(fft_len, False, (()), True, 1)
self.digital_packet_headergenerator_bb_0 = digital.packet_headergenerator_bb(
header_formatter.formatter(), packet_length_tag_key)
self.digital_ofdm_cyclic_prefixer_0 = digital.ofdm_cyclic_prefixer(
fft_len, fft_len + fft_len / 4, rolloff, packet_length_tag_key)
self.digital_ofdm_carrier_allocator_cvc_0 = digital.ofdm_carrier_allocator_cvc(
fft_len, occupied_carriers, pilot_carriers, pilot_symbols,
(sync_word1, sync_word2), packet_length_tag_key)
self.digital_crc32_bb_0_0 = digital.crc32_bb(False,
packet_length_tag_key,
True)
self.digital_chunks_to_symbols_xx_0_0 = digital.chunks_to_symbols_bc(
(payload_mod.points()), 1)
self.digital_chunks_to_symbols_xx_0 = digital.chunks_to_symbols_bc(
(header_mod.points()), 1)
self.blocks_tagged_stream_mux_0 = blocks.tagged_stream_mux(
gr.sizeof_gr_complex * 1, "packet_len", 0)
self.blocks_tag_gate_0 = blocks.tag_gate(gr.sizeof_gr_complex * 1,
True)
self.blocks_repack_bits_bb_0_0 = blocks.repack_bits_bb(
8, payload_mod.bits_per_symbol(), packet_length_tag_key, False,
gr.GR_LSB_FIRST)
self.blocks_pdu_to_tagged_stream_0 = blocks.pdu_to_tagged_stream(
blocks.byte_t, "packet_len")
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc((0.05, ))
self.blocks_message_strobe_0 = blocks.message_strobe(
pmt.cons(pmt.make_dict(), pmt.make_u8vector(4, 1)), 100)
self.blocks_message_debug_0 = blocks.message_debug()
##################################################
# Connections
##################################################
self.msg_connect((self.blocks_message_strobe_0, 'strobe'),
(self.blocks_message_debug_0, 'print_pdu'))
self.msg_connect((self.blocks_message_strobe_0, 'strobe'),
(self.blocks_pdu_to_tagged_stream_0, 'pdus'))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.blocks_tag_gate_0, 0))
self.connect((self.blocks_pdu_to_tagged_stream_0, 0),
(self.digital_crc32_bb_0_0, 0))
self.connect((self.blocks_repack_bits_bb_0_0, 0),
(self.digital_chunks_to_symbols_xx_0_0, 0))
self.connect((self.blocks_tag_gate_0, 0),
(self.qtgui_time_sink_x_0, 0))
self.connect((self.blocks_tag_gate_0, 0), (self.uhd_usrp_sink_0, 0))
self.connect((self.blocks_tagged_stream_mux_0, 0),
(self.digital_ofdm_carrier_allocator_cvc_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0, 0),
(self.blocks_tagged_stream_mux_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0_0, 0),
(self.blocks_tagged_stream_mux_0, 1))
self.connect((self.digital_crc32_bb_0_0, 0),
(self.blocks_repack_bits_bb_0_0, 0))
self.connect((self.digital_crc32_bb_0_0, 0),
(self.digital_packet_headergenerator_bb_0, 0))
self.connect((self.digital_ofdm_carrier_allocator_cvc_0, 0),
(self.fft_vxx_0_0, 0))
self.connect((self.digital_ofdm_cyclic_prefixer_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.digital_packet_headergenerator_bb_0, 0),
(self.digital_chunks_to_symbols_xx_0, 0))
self.connect((self.fft_vxx_0_0, 0),
(self.digital_ofdm_cyclic_prefixer_0, 0))
def __init__(self):
gr.top_block.__init__(self, "OFDM Transceiver")
self._lock = threading.RLock()
##################################################
# Variables
##################################################
self.sent_pkt = 0
self.rcv_pkt = 0
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.waterfall_min = waterfall_min = -80
self.waterfall_max = waterfall_max = -20
self.tx_gain = tx_gain = 0.03
self.sync_word2 = sync_word2 = [0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, 0j, 0j, 0j, 0j]
self.sync_word1 = sync_word1 = [0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]
self.samp_rate = samp_rate = 20e6
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)
self.center_freq = center_freq = 2.412e9
##################################################
# Blocks
##################################################
self.osmosdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + "bladerf=1" )
self.osmosdr_source_0.set_sample_rate(samp_rate)
self.osmosdr_source_0.set_center_freq(center_freq, 0)
self.osmosdr_source_0.set_freq_corr(0, 0)
self.osmosdr_source_0.set_dc_offset_mode(1, 0)
self.osmosdr_source_0.set_iq_balance_mode(1, 0)
self.osmosdr_source_0.set_gain_mode(False, 0)
self.osmosdr_source_0.set_gain(10, 0)
self.osmosdr_source_0.set_if_gain(20, 0)
self.osmosdr_source_0.set_bb_gain(20, 0)
self.osmosdr_source_0.set_antenna("", 0)
self.osmosdr_source_0.set_bandwidth(samp_rate, 0)
self.osmosdr_sink_0 = osmosdr.sink( args="numchan=" + str(1) + " " + "bladerf=0" )
self.osmosdr_sink_0.set_sample_rate(samp_rate)
self.osmosdr_sink_0.set_center_freq(center_freq, 0)
self.osmosdr_sink_0.set_freq_corr(10, 0)
self.osmosdr_sink_0.set_gain(20, 0)
self.osmosdr_sink_0.set_if_gain(20, 0)
self.osmosdr_sink_0.set_bb_gain(0, 0)
self.osmosdr_sink_0.set_antenna("", 0)
self.osmosdr_sink_0.set_bandwidth(samp_rate, 0)
self.digital_ofdm_tx_0 = digital.ofdm_tx(
fft_len=64, cp_len=fft_len/4,
packet_length_tag_key=packet_length_tag_key,
occupied_carriers=occupied_carriers,
pilot_carriers=pilot_carriers,
pilot_symbols=pilot_symbols,
sync_word1=sync_word1,
sync_word2=sync_word2,
bps_header=1,
bps_payload=1,
rolloff=0,
debug_log=True,
scramble_bits=False
)
self.digital_ofdm_rx_0 = digital.ofdm_rx(
fft_len=64, cp_len=fft_len/4,
frame_length_tag_key='frame_'+packet_length_tag_key,
packet_length_tag_key=packet_length_tag_key,
occupied_carriers=occupied_carriers,
pilot_carriers=pilot_carriers,
pilot_symbols=pilot_symbols,
sync_word1=sync_word1,
sync_word2=sync_word2,
bps_header=1,
bps_payload=1,
debug_log=False,
scramble_bits=False
)
self.dc_blocker_xx_0 = filter.dc_blocker_cc(1024, False)
self.blocks_tagged_stream_to_pdu_0 = blocks.tagged_stream_to_pdu(blocks.byte_t, packet_length_tag_key)
self.blocks_pdu_to_tagged_stream_0 = blocks.pdu_to_tagged_stream(blocks.byte_t, packet_length_tag_key)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc((tx_gain, ))
self.blocks_message_debug_0 = blocks.message_debug()
self.pdu_block = messaging.pdu_block(self)
##################################################
# Connections
##################################################
self.msg_connect((self.pdu_block, 'out_pdu'), (self.blocks_pdu_to_tagged_stream_0, 'pdus'))
self.msg_connect((self.blocks_tagged_stream_to_pdu_0, 'pdus'), (self.pdu_block, 'in_pdu'))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.osmosdr_sink_0, 0))
self.connect((self.blocks_pdu_to_tagged_stream_0, 0), (self.digital_ofdm_tx_0, 0))
self.connect((self.dc_blocker_xx_0, 0), (self.digital_ofdm_rx_0, 0))
self.connect((self.digital_ofdm_rx_0, 0), (self.blocks_tagged_stream_to_pdu_0, 0))
self.connect((self.digital_ofdm_tx_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.osmosdr_source_0, 0), (self.dc_blocker_xx_0, 0))
def __init__(self, fft_len=_def_fft_len, cp_len=_def_cp_len,
frame_length_tag_key=_def_frame_length_tag_key,
packet_length_tag_key=_def_packet_length_tag_key,
packet_num_tag_key=_def_packet_num_tag_key,
occupied_carriers=_def_occupied_carriers,
pilot_carriers=_def_pilot_carriers,
pilot_symbols=_def_pilot_symbols,
bps_header=1,
bps_payload=1,
sync_word1=None,
sync_word2=None,
debug_log=False,
scramble_bits=False
):
gr.hier_block2.__init__(self, "ofdm_rx",
gr.io_signature(1, 1, gr.sizeof_gr_complex),
gr.io_signature(2, 2, gr.sizeof_char))
### Param init / sanity check ########################################
self.fft_len = fft_len
self.cp_len = cp_len
self.frame_length_tag_key = frame_length_tag_key
self.packet_length_tag_key = packet_length_tag_key
self.occupied_carriers = occupied_carriers
self.bps_header = bps_header
self.bps_payload = bps_payload
n_sync_words = 1
if sync_word1 is None:
self.sync_word1 = _make_sync_word1(fft_len, occupied_carriers, pilot_carriers)
else:
if len(sync_word1) != self.fft_len:
raise ValueError("Length of sync sequence(s) must be FFT length.")
self.sync_word1 = sync_word1
self.sync_word2 = ()
if sync_word2 is None:
self.sync_word2 = _make_sync_word2(fft_len, occupied_carriers, pilot_carriers)
n_sync_words = 2
elif len(sync_word2):
if len(sync_word2) != fft_len:
raise ValueError("Length of sync sequence(s) must be FFT length.")
self.sync_word2 = sync_word2
n_sync_words = 2
if scramble_bits:
self.scramble_seed = 0x7f
else:
self.scramble_seed = 0x00 # We deactivate the scrambler by init'ing it with zeros
### Sync ############################################################
sync_detect = digital.ofdm_sync_sc_cfb(fft_len, cp_len)
delay = blocks.delay(gr.sizeof_gr_complex, fft_len+cp_len)
oscillator = analog.frequency_modulator_fc(-2.0 / fft_len)
mixer = blocks.multiply_cc()
hpd = digital.header_payload_demux(
n_sync_words+1, # Number of OFDM symbols before payload (sync + 1 sym header)
fft_len, cp_len, # FFT length, guard interval
frame_length_tag_key, # Frame length tag key
"", # We're not using trigger tags
True # One output item is one OFDM symbol (False would output complex scalars)
)
self.connect(self, sync_detect)
self.connect(self, delay, (mixer, 0), (hpd, 0))
self.connect((sync_detect, 0), oscillator, (mixer, 1))
self.connect((sync_detect, 1), (hpd, 1))
if debug_log:
self.connect((sync_detect, 0), blocks.file_sink(gr.sizeof_float, 'freq-offset.dat'))
self.connect((sync_detect, 1), blocks.file_sink(gr.sizeof_char, 'sync-detect.dat'))
### Header demodulation ##############################################
header_fft = fft.fft_vcc(self.fft_len, True, (), True)
chanest = digital.ofdm_chanest_vcvc(self.sync_word1, self.sync_word2, 1)
header_constellation = _get_constellation(bps_header)
header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len,
header_constellation.base(),
occupied_carriers,
pilot_carriers,
pilot_symbols,
symbols_skipped=0,
)
header_eq = digital.ofdm_frame_equalizer_vcvc(
header_equalizer.base(),
cp_len,
self.frame_length_tag_key,
True,
1 # Header is 1 symbol long
)
header_serializer = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers,
self.frame_length_tag_key
)
header_demod = digital.constellation_decoder_cb(header_constellation.base())
header_formatter = digital.packet_header_ofdm(
occupied_carriers, 1,
packet_length_tag_key,
frame_length_tag_key,
packet_num_tag_key,
bps_header,
bps_payload,
scramble_header=scramble_bits
)
header_parser = digital.packet_headerparser_b(header_formatter.formatter())
self.connect(
(hpd, 0),
header_fft,
chanest,
header_eq,
header_serializer,
header_demod,
header_parser
)
self.msg_connect(header_parser, "header_data", hpd, "header_data")
if debug_log:
self.connect((chanest, 1), blocks.file_sink(gr.sizeof_gr_complex * fft_len, 'channel-estimate.dat'))
self.connect((chanest, 0), blocks.file_sink(gr.sizeof_gr_complex * fft_len, 'post-hdr-chanest.dat'))
self.connect((chanest, 0), blocks.tag_debug(gr.sizeof_gr_complex * fft_len, 'post-hdr-chanest'))
self.connect(header_eq, blocks.file_sink(gr.sizeof_gr_complex * fft_len, 'post-hdr-eq.dat'))
self.connect(header_serializer, blocks.file_sink(gr.sizeof_gr_complex, 'post-hdr-serializer.dat'))
self.connect(header_descrambler, blocks.file_sink(1, 'post-hdr-demod.dat'))
### Payload demod ####################################################
payload_fft = fft.fft_vcc(self.fft_len, True, (), True)
payload_constellation = _get_constellation(bps_payload)
payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len,
payload_constellation.base(),
occupied_carriers,
pilot_carriers,
pilot_symbols,
symbols_skipped=1, # (that was already in the header)
alpha=0.1
)
payload_eq = digital.ofdm_frame_equalizer_vcvc(
payload_equalizer.base(),
cp_len,
self.frame_length_tag_key
)
payload_serializer = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers,
self.frame_length_tag_key,
self.packet_length_tag_key,
1 # Skip 1 symbol (that was already in the header)
)
payload_demod = digital.constellation_decoder_cb(payload_constellation.base())
self.payload_descrambler = digital.additive_scrambler_bb(
0x8a,
self.scramble_seed,
7,
0, # Don't reset after fixed length
bits_per_byte=8, # This is after packing
reset_tag_key=self.packet_length_tag_key
)
payload_pack = blocks.repack_bits_bb(bps_payload, 8, self.packet_length_tag_key, True)
self.crc = digital.crc32_bb(True, self.packet_length_tag_key)
self.connect(
(hpd, 1),
payload_fft,
payload_eq,
payload_serializer,
payload_demod,
payload_pack,
self.payload_descrambler,
self.crc,
self
)
self.connect((sync_detect, 1), (self, 1))
# Add snr logger
#snr = mofdm.ofdm_subchan_snr_vcvf(self.fft_len, self.cp_len, self.frame_length_tag_key,
# self.occupied_carriers, pilot_carriers, pilot_symbols, 0, True, debug=False)
#self.connect(payload_fft, snr, blocks.file_sink(gr.sizeof_float * fft_len, 'perchan-snr.dat'))
#rx_data = mofdm.ofdm_data_sink(self.packet_length_tag_key)
#self.connect(self.payload_descrambler, rx_data)
if debug_log:
self.connect((hpd, 1), blocks.tag_debug(gr.sizeof_gr_complex*fft_len, 'post-hpd'))
self.connect(payload_fft, blocks.file_sink(gr.sizeof_gr_complex*fft_len, 'post-payload-fft.dat'))
self.connect(payload_eq, blocks.file_sink(gr.sizeof_gr_complex*fft_len, 'post-payload-eq.dat'))
self.connect(payload_serializer, blocks.file_sink(gr.sizeof_gr_complex, 'post-payload-serializer.dat'))
self.connect(payload_demod, blocks.file_sink(1, 'post-payload-demod.dat'))
self.connect(payload_pack, blocks.file_sink(1, 'post-payload-pack.dat'))
self.connect(crc, blocks.file_sink(1, 'post-payload-crc.dat'))
def test_003_ofdm(self):
""" Header 1: 193 bytes
Header 2: 8 bytes
2 bits per complex symbol, 32 carriers => 64 bits = 8 bytes per OFDM symbol
4 carriers => 8 bits = 1 byte per OFDM symbol
8 carriers => 16 bits = 2 bytes per OFDM symbol
Means we need 52 carriers to store the 193 bytes.
"""
encoded_headers = (
# | Number of bytes | Packet number | CRC
1,
0,
0,
0,
0,
0,
1,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
0,
1,
1,
0,
1,
1,
0,
0,
0,
0,
1,
0,
0,
0,
0,
0,
0,
0,
0,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
0,
1,
1,
1,
0,
)
packet_len_tagname = "packet_len"
frame_len_tagname = "frame_len"
src = blocks.vector_source_b(encoded_headers)
header_formatter = digital.packet_header_ofdm(
# 32/4/8 carriers are occupied (which doesn't matter here)
(list(range(32)), list(range(4)), list(range(8))),
1, # 1 OFDM symbol per header (= 32 bits)
packet_len_tagname,
frame_len_tagname,
"packet_num",
1, # 1 bit per header symbols (BPSK)
2 # 2 bits per payload symbol (QPSK)
)
parser = digital.packet_headerparser_b(header_formatter.base())
sink = blocks.message_debug()
self.tb.connect(src, parser)
self.tb.msg_connect(parser, "header_data", sink, "store")
self.tb.start()
time.sleep(1)
self.tb.stop()
self.tb.wait()
self.assertEqual(sink.num_messages(), 2)
msg1 = pmt.to_python(sink.get_message(0))
msg2 = pmt.to_python(sink.get_message(1))
# Multiply with 4 because unpacked bytes have only two bits
self.assertEqual(msg1, {
'packet_len': 193 * 4,
'frame_len': 52,
'packet_num': 0
})
self.assertEqual(msg2, {
'packet_len': 8 * 4,
'frame_len': 1,
'packet_num': 1
})
def __init__(self):
gr.top_block.__init__(self, "OFDM Tx")
##################################################
# Variables
##################################################
self.occupied_carriers = occupied_carriers = (
range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) +
range(8, 21) + range(22, 27), )
self.length_tag_key = length_tag_key = "packet_len"
self.sync_word2 = sync_word2 = [
0, 0, 0, 0, 0, 0, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1,
1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1,
1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, -1,
-1, 0, 0, 0, 0, 0
]
self.sync_word1 = sync_word1 = [
0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
0., 0., 0., 0., 0.
]
self.samp_rate = samp_rate = 5000000
self.rolloff = rolloff = 0
self.pilot_symbols = pilot_symbols = ((
1,
1,
1,
-1,
), )
self.pilot_carriers = pilot_carriers = ((
-21,
-7,
7,
21,
), )
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_len = packet_len = 96
self.header_mod = header_mod = digital.constellation_bpsk()
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers, 1, length_tag_key)
self.fft_len = fft_len = 64
##################################################
# Blocks
##################################################
self.uhd_usrp_sink_0 = uhd.usrp_sink(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_sink_0.set_samp_rate(samp_rate)
self.uhd_usrp_sink_0.set_center_freq(2490000000, 0)
self.uhd_usrp_sink_0.set_gain(20, 0)
self.uhd_usrp_sink_0.set_antenna("TX/RX", 0)
self.fft_vxx_0 = fft.fft_vcc(fft_len, False, (()), True, 1)
self.digital_packet_headergenerator_bb_0 = digital.packet_headergenerator_bb(
header_formatter.formatter(), "packet_len")
self.digital_ofdm_cyclic_prefixer_0 = digital.ofdm_cyclic_prefixer(
fft_len, fft_len + fft_len / 4, rolloff, length_tag_key)
self.digital_ofdm_carrier_allocator_cvc_0 = digital.ofdm_carrier_allocator_cvc(
fft_len, occupied_carriers, pilot_carriers, pilot_symbols,
(sync_word1, sync_word2), length_tag_key)
self.digital_crc32_bb_0 = digital.crc32_bb(False, length_tag_key, True)
self.digital_chunks_to_symbols_xx_0_0 = digital.chunks_to_symbols_bc(
(payload_mod.points()), 1)
self.digital_chunks_to_symbols_xx_0 = digital.chunks_to_symbols_bc(
(header_mod.points()), 1)
self.blocks_tagged_stream_mux_0 = blocks.tagged_stream_mux(
gr.sizeof_gr_complex * 1, length_tag_key, 0)
self.blocks_tag_gate_0 = blocks.tag_gate(gr.sizeof_gr_complex * 1,
False)
self.blocks_stream_to_tagged_stream_0 = blocks.stream_to_tagged_stream(
gr.sizeof_char, 1, packet_len, length_tag_key)
self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(
8, payload_mod.bits_per_symbol(), length_tag_key, False,
gr.GR_LSB_FIRST)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc((0.05, ))
self.analog_random_source_x_0 = blocks.vector_source_b(
map(int, numpy.random.randint(0, 255, 1000)), True)
##################################################
# Connections
##################################################
self.connect((self.analog_random_source_x_0, 0),
(self.blocks_stream_to_tagged_stream_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.blocks_tag_gate_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0),
(self.digital_chunks_to_symbols_xx_0_0, 0))
self.connect((self.blocks_stream_to_tagged_stream_0, 0),
(self.digital_crc32_bb_0, 0))
self.connect((self.blocks_tag_gate_0, 0), (self.uhd_usrp_sink_0, 0))
self.connect((self.blocks_tagged_stream_mux_0, 0),
(self.digital_ofdm_carrier_allocator_cvc_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0, 0),
(self.blocks_tagged_stream_mux_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0_0, 0),
(self.blocks_tagged_stream_mux_0, 1))
self.connect((self.digital_crc32_bb_0, 0),
(self.blocks_repack_bits_bb_0, 0))
self.connect((self.digital_crc32_bb_0, 0),
(self.digital_packet_headergenerator_bb_0, 0))
self.connect((self.digital_ofdm_carrier_allocator_cvc_0, 0),
(self.fft_vxx_0, 0))
self.connect((self.digital_ofdm_cyclic_prefixer_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.digital_packet_headergenerator_bb_0, 0),
(self.digital_chunks_to_symbols_xx_0, 0))
self.connect((self.fft_vxx_0, 0),
(self.digital_ofdm_cyclic_prefixer_0, 0))
def set_occupied_carriers(self, occupied_carriers):
self.occupied_carriers = occupied_carriers
self.set_header_formatter(
digital.packet_header_ofdm(self.occupied_carriers, 1,
self.length_tag_key))
def __init__(self):
gr.top_block.__init__(self, "NC-OFDM loopback")
Qt.QWidget.__init__(self)
self.setWindowTitle("NC-OFDM loopback")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "ncofdm_loopback")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.pn_symbols = pn_symbols = (1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, 1, -1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, 1, -1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, -1, -1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, -1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, -1, 1, -1, -1, -1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, -1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, -1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, -1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, -1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 1, -1, -1, 1, -1, -1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, -1, -1, 1, -1, -1, -1, -1, -1, 1, 1, 1, -1, 1, 1, -1, -1, 1, -1, 1, -1, -1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, 1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1, 1, 1, 1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, -1, 1, -1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, -1, 1, 1, 1, 1, 1, -1, -1, -1, -1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, 1, -1, 1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1, -1, 1, -1, -1, -1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, 1, 1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, 1, 1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, 1, 1, -1, 1, -1, 1, 1, -1, 1, 1, 1, 1, -1, -1, 1, 1, 1, 1, -1, -1, 1, -1, -1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, -1, -1, 1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, -1, 1, -1, 1, 1, -1, 1, 1, 1, 1, 1, -1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, -1, -1, -1, -1, -1, 1, 1, 1, -1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, -1, 1, -1, -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, 1, -1, 1, 1, -1, -1, 1, -1, -1, -1, -1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, 1, 1, 1, 1, -1, -1, -1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, -1, 1, 1, -1, 1, 1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, 1, -1, 1, -1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, 1, -1, 1, 1, 1, -1, -1, -1, -1, 1, 1, 1, -1, 1, 1, -1, 1, 1, -1, 1, 1, 1, 1, 1, 1, -1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 1, 1, -1, -1, -1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, 1, 1, 1, -1, 1, 1, -1, -1, 1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, 1, 1, -1, 1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, 1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, 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1, -1, 1, -1, 1, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, 1, 1, 1, -1, -1, 1, 1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, -1, -1, -1, 1, 1, 1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, 1, 1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, 1, -1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, 1)
self.occupied_carriers = occupied_carriers = (range(-31,32),)
self.length_tag_name = length_tag_name = "packet_len"
self.fft_len = fft_len = 64
self.ShSeqLen = ShSeqLen = 40
self.LgSeqLen = LgSeqLen = 320
self.DataSeqLen = DataSeqLen = 64
self.sync_len = sync_len = 20
self.samp_rate = samp_rate = 100000
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_len = packet_len = 100
self.ncofdm_amp = ncofdm_amp = 1
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, 1, length_tag_name)
self.fileprefix = fileprefix = "/root/"
self.cp_len = cp_len = fft_len/4
self.cen_freq = cen_freq = 1500000000
self.ShThreshold = ShThreshold = 10
self.ShSymbols = ShSymbols = pn_symbols[0:ShSeqLen]
self.ShSeqRep = ShSeqRep = 8
self.ShRepThreshold = ShRepThreshold = 3.5
self.LgThreshold = LgThreshold = 100
self.LgSymbols = LgSymbols = pn_symbols[ShSeqLen:ShSeqLen+LgSeqLen]
self.DataSymbols = DataSymbols = pn_symbols[ShSeqLen+LgSeqLen:DataSeqLen+ShSeqLen+LgSeqLen]
self.DataLen = DataLen = DataSeqLen*20
##################################################
# Blocks
##################################################
self.ncofdm_stream2fftvector_0 = ncofdm.stream2fftvector(fft_len, cp_len)
self.ncofdm_ncofdm_carrier_allocator_0 = ncofdm.ncofdm_carrier_allocator(fft_len, occupied_carriers, (), (), "packet_len")
self._ncofdm_amp_layout = Qt.QVBoxLayout()
self._ncofdm_amp_tool_bar = Qt.QToolBar(self)
self._ncofdm_amp_layout.addWidget(self._ncofdm_amp_tool_bar)
self._ncofdm_amp_tool_bar.addWidget(Qt.QLabel("ncofdm_amp"+": "))
class qwt_counter_pyslot(Qwt.QwtCounter):
def __init__(self, parent=None):
Qwt.QwtCounter.__init__(self, parent)
@pyqtSlot('double')
def setValue(self, value):
super(Qwt.QwtCounter, self).setValue(value)
self._ncofdm_amp_counter = qwt_counter_pyslot()
self._ncofdm_amp_counter.setRange(0, 2, 0.001)
self._ncofdm_amp_counter.setNumButtons(2)
self._ncofdm_amp_counter.setValue(self.ncofdm_amp)
self._ncofdm_amp_tool_bar.addWidget(self._ncofdm_amp_counter)
self._ncofdm_amp_counter.valueChanged.connect(self.set_ncofdm_amp)
self._ncofdm_amp_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
self._ncofdm_amp_slider.setRange(0, 2, 0.001)
self._ncofdm_amp_slider.setValue(self.ncofdm_amp)
self._ncofdm_amp_slider.setMinimumWidth(200)
self._ncofdm_amp_slider.valueChanged.connect(self.set_ncofdm_amp)
self._ncofdm_amp_layout.addWidget(self._ncofdm_amp_slider)
self.top_layout.addLayout(self._ncofdm_amp_layout)
self.ncofdm_add_cp_underlay_0 = ncofdm.add_cp_underlay(fft_len, cp_len, 20, 1280, ShSeqLen, ShSeqRep, ShSymbols, DataSeqLen, DataSymbols, LgSeqLen, LgSymbols, "packet_len")
self.ncofdm_ShortPNdetector_0 = ncofdm.ShortPNdetector(fft_len, cp_len, ShSeqRep, ShSeqLen, 1)
self.ncofdm_ShortPNcorr_0 = ncofdm.ShortPNcorr(fft_len, cp_len, ShSeqRep, ShSeqLen, (ShSymbols))
self.ncofdm_LongPNcorrV2_0 = ncofdm.LongPNcorrV2(fft_len, cp_len, LgSeqLen, (LgSymbols), 60, ShSeqRep*ShSeqLen+LgSeqLen+DataLen+10)
self.ncofdm_FreqOffCalc_0 = ncofdm.FreqOffCalc(fft_len, fft_len/4, ShSeqLen, ShSeqRep)
self.fft_vxx_1 = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_0 = fft.fft_vcc(fft_len, False, (()), True, 1)
self.digital_chunks_to_symbols_xx_0_0_0 = digital.chunks_to_symbols_bc((payload_mod.points()), 1)
self.channels_channel_model_0 = channels.channel_model(
noise_voltage=0,
frequency_offset=0.0004,
epsilon=1.0,
taps=(1, ),
noise_seed=0,
block_tags=False
)
self.blocks_vector_to_stream_0_1 = blocks.vector_to_stream(gr.sizeof_gr_complex*1, fft_len)
self.blocks_vector_to_stream_0 = blocks.vector_to_stream(gr.sizeof_gr_complex*1, fft_len)
self.blocks_throttle_0_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
self.blocks_threshold_ff_0_0 = blocks.threshold_ff(ShRepThreshold, ShRepThreshold, 0)
self.blocks_stream_to_tagged_stream_0 = blocks.stream_to_tagged_stream(gr.sizeof_char, 1, packet_len, "packet_len")
self.blocks_repack_bits_bb_0_0 = blocks.repack_bits_bb(8, payload_mod.bits_per_symbol(), length_tag_name, False, gr.GR_LSB_FIRST)
self.blocks_null_sink_1_0_0_0_1_1_0_0 = blocks.null_sink(gr.sizeof_gr_complex*1)
self.blocks_null_sink_1_0_0_0_1_1_0 = blocks.null_sink(gr.sizeof_gr_complex*1)
self.blocks_null_sink_1_0_0_0_1_0_0_0 = blocks.null_sink(gr.sizeof_int*1)
self.blocks_null_sink_1 = blocks.null_sink(gr.sizeof_gr_complex*1)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_gr_complex*1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vcc(([1/(math.sqrt(44))]*fft_len))
self.blocks_moving_average_xx_0 = blocks.moving_average_ff(100, 0.01, 4000)
self.blocks_float_to_int_0 = blocks.float_to_int(1, 1)
self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
self.blocks_file_sink_1_0_0_0_3 = blocks.file_sink(gr.sizeof_gr_complex*1, fileprefix+"short.dat", False)
self.blocks_file_sink_1_0_0_0_3.set_unbuffered(False)
self.blocks_file_sink_1_0_0_0_2 = blocks.file_sink(gr.sizeof_gr_complex*1, fileprefix+"org.dat", False)
self.blocks_file_sink_1_0_0_0_2.set_unbuffered(False)
self.blocks_file_sink_1_0_0_0_1_1_1 = blocks.file_sink(gr.sizeof_float*1, fileprefix+"rxshth.dat", False)
self.blocks_file_sink_1_0_0_0_1_1_1.set_unbuffered(False)
self.blocks_file_sink_1_0_0_0_1_1_0 = blocks.file_sink(gr.sizeof_float*1, fileprefix+"lgth.dat", False)
self.blocks_file_sink_1_0_0_0_1_1_0.set_unbuffered(False)
self.blocks_file_sink_1_0_0_0_0_2_0 = blocks.file_sink(gr.sizeof_gr_complex*1, fileprefix+"txdata.dat", False)
self.blocks_file_sink_1_0_0_0_0_2_0.set_unbuffered(False)
self.blocks_file_sink_1_0_0_0_0_2 = blocks.file_sink(gr.sizeof_gr_complex*1, fileprefix+"rxd.dat", False)
self.blocks_file_sink_1_0_0_0_0_2.set_unbuffered(False)
self.blocks_file_sink_1_0_0_0_0_0 = blocks.file_sink(gr.sizeof_int*1, fileprefix+"corr.dat", False)
self.blocks_file_sink_1_0_0_0_0_0.set_unbuffered(False)
self.blocks_file_sink_1_0_0_0_0 = blocks.file_sink(gr.sizeof_gr_complex*1, fileprefix+"dec.dat", False)
self.blocks_file_sink_1_0_0_0_0.set_unbuffered(False)
self.blocks_file_sink_1_0_0_0 = blocks.file_sink(gr.sizeof_gr_complex*1, fileprefix+"long.dat", False)
self.blocks_file_sink_1_0_0_0.set_unbuffered(False)
self.blocks_delay_0_0_0_0_0_0_0 = blocks.delay(gr.sizeof_float*1, 2)
self.blocks_delay_0_0_0_0_0_0 = blocks.delay(gr.sizeof_float*1, 2)
self.blocks_delay_0_0_0_0_0 = blocks.delay(gr.sizeof_int*1, 1)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_complex_to_mag_0_0_0 = blocks.complex_to_mag(1)
self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
self.analog_random_source_x_0 = blocks.vector_source_b(map(int, numpy.random.randint(0, 200, 10000)), True)
##################################################
# Connections
##################################################
self.connect((self.analog_random_source_x_0, 0), (self.blocks_stream_to_tagged_stream_0, 0))
self.connect((self.blocks_complex_to_mag_0, 0), (self.ncofdm_ShortPNdetector_0, 0))
self.connect((self.blocks_complex_to_mag_0_0_0, 0), (self.blocks_moving_average_xx_0, 0))
self.connect((self.blocks_complex_to_real_0, 0), (self.blocks_file_sink_1_0_0_0_1_1_0, 0))
self.connect((self.blocks_delay_0_0_0_0_0, 0), (self.ncofdm_FreqOffCalc_0, 1))
self.connect((self.blocks_delay_0_0_0_0_0_0, 0), (self.blocks_float_to_complex_0, 1))
self.connect((self.blocks_delay_0_0_0_0_0_0_0, 0), (self.blocks_float_to_complex_0, 0))
self.connect((self.blocks_float_to_complex_0, 0), (self.ncofdm_LongPNcorrV2_0, 1))
self.connect((self.blocks_float_to_int_0, 0), (self.blocks_delay_0_0_0_0_0, 0))
self.connect((self.blocks_moving_average_xx_0, 0), (self.ncofdm_LongPNcorrV2_0, 2))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.ncofdm_add_cp_underlay_0, 0))
self.connect((self.blocks_repack_bits_bb_0_0, 0), (self.digital_chunks_to_symbols_xx_0_0_0, 0))
self.connect((self.blocks_stream_to_tagged_stream_0, 0), (self.blocks_repack_bits_bb_0_0, 0))
self.connect((self.blocks_threshold_ff_0_0, 0), (self.blocks_delay_0_0_0_0_0_0, 0))
self.connect((self.blocks_threshold_ff_0_0, 0), (self.blocks_float_to_int_0, 0))
self.connect((self.blocks_throttle_0_0, 0), (self.channels_channel_model_0, 0))
self.connect((self.blocks_vector_to_stream_0, 0), (self.blocks_file_sink_1_0_0_0_0, 0))
self.connect((self.blocks_vector_to_stream_0, 0), (self.blocks_null_sink_1, 0))
self.connect((self.blocks_vector_to_stream_0_1, 0), (self.blocks_file_sink_1_0_0_0_0_2, 0))
self.connect((self.channels_channel_model_0, 0), (self.blocks_complex_to_mag_0_0_0, 0))
self.connect((self.channels_channel_model_0, 0), (self.blocks_file_sink_1_0_0_0_2, 0))
self.connect((self.channels_channel_model_0, 0), (self.ncofdm_LongPNcorrV2_0, 0))
self.connect((self.channels_channel_model_0, 0), (self.ncofdm_ShortPNcorr_0, 0))
self.connect((self.channels_channel_model_0, 0), (self.ncofdm_stream2fftvector_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0_0_0, 0), (self.ncofdm_ncofdm_carrier_allocator_0, 0))
self.connect((self.fft_vxx_0, 0), (self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.fft_vxx_1, 0), (self.blocks_vector_to_stream_0, 0))
self.connect((self.ncofdm_FreqOffCalc_0, 0), (self.blocks_delay_0_0_0_0_0_0_0, 0))
self.connect((self.ncofdm_LongPNcorrV2_0, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.ncofdm_LongPNcorrV2_0, 1), (self.blocks_file_sink_1_0_0_0, 0))
self.connect((self.ncofdm_LongPNcorrV2_0, 2), (self.blocks_file_sink_1_0_0_0_0_0, 0))
self.connect((self.ncofdm_LongPNcorrV2_0, 2), (self.blocks_null_sink_1_0_0_0_1_0_0_0, 0))
self.connect((self.ncofdm_LongPNcorrV2_0, 1), (self.blocks_null_sink_1_0_0_0_1_1_0, 0))
self.connect((self.ncofdm_LongPNcorrV2_0, 0), (self.blocks_null_sink_1_0_0_0_1_1_0_0, 0))
self.connect((self.ncofdm_LongPNcorrV2_0, 2), (self.ncofdm_stream2fftvector_0, 1))
self.connect((self.ncofdm_ShortPNcorr_0, 1), (self.blocks_complex_to_mag_0, 0))
self.connect((self.ncofdm_ShortPNcorr_0, 1), (self.blocks_file_sink_1_0_0_0_3, 0))
self.connect((self.ncofdm_ShortPNcorr_0, 0), (self.blocks_null_sink_0, 0))
self.connect((self.ncofdm_ShortPNcorr_0, 1), (self.ncofdm_FreqOffCalc_0, 0))
self.connect((self.ncofdm_ShortPNdetector_0, 1), (self.blocks_file_sink_1_0_0_0_1_1_1, 0))
self.connect((self.ncofdm_ShortPNdetector_0, 0), (self.blocks_threshold_ff_0_0, 0))
self.connect((self.ncofdm_add_cp_underlay_0, 0), (self.blocks_file_sink_1_0_0_0_0_2_0, 0))
self.connect((self.ncofdm_add_cp_underlay_0, 0), (self.blocks_throttle_0_0, 0))
self.connect((self.ncofdm_ncofdm_carrier_allocator_0, 0), (self.blocks_vector_to_stream_0_1, 0))
self.connect((self.ncofdm_ncofdm_carrier_allocator_0, 0), (self.fft_vxx_0, 0))
self.connect((self.ncofdm_stream2fftvector_0, 0), (self.fft_vxx_1, 0))
def __init__(self): grc_wxgui.top_block_gui.__init__(self, title="OFDM Tx") _icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png" self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY)) ################################################## # Variables ################################################## self.occupied_carriers = occupied_carriers = (range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),) self.length_tag_name = length_tag_name = "packet_len" self.sync_word2 = sync_word2 = (0, 0, 0, 0, 0, 1, 1, -1.0, -1, 1.0, 1, 1.0, -1, -1.0, -1, 1.0, 1, -1.0, 1, 1.0, 1, -1.0, -1, -1.0, -1, 1.0, -1, 1.0, -1, 1.0, 1, -1.0, 0, 1.0, 1, -1.0, 1, 1.0, -1, -1.0, 1, -1.0, -1, -1.0, 1, 1.0, 1, -1.0, 1, 1.0, -1, 1.0, -1, -1.0, -1, 1.0, 1, -1.0, 0, 0, 0, 0, 0, 0) self.sync_word1 = sync_word1 = (0, 0, 0, 0, 0, 0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 0, 0, 0, 0, 0) self.samp_rate = samp_rate = 100000 self.rolloff = rolloff = 0 self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),) self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),) self.payload_mod = payload_mod = digital.constellation_qpsk() self.packet_len = packet_len = 96 self.header_mod = header_mod = digital.constellation_bpsk() self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, 1, length_tag_name) self.fft_len = fft_len = 64 ################################################## # Blocks ################################################## self.wxgui_scopesink2_0 = scopesink2.scope_sink_c( self.GetWin(), title="Scope Plot", sample_rate=samp_rate, v_scale=0, v_offset=0, t_scale=0, ac_couple=False, xy_mode=False, num_inputs=1, trig_mode=gr.gr_TRIG_MODE_AUTO, y_axis_label="Counts", ) self.Add(self.wxgui_scopesink2_0.win) self.wxgui_fftsink2_0 = fftsink2.fft_sink_c( self.GetWin(), baseband_freq=0, y_per_div=10, y_divs=10, ref_level=0, ref_scale=2.0, sample_rate=samp_rate, fft_size=1024, fft_rate=15, average=False, avg_alpha=None, title="FFT Plot", peak_hold=False, ) self.Add(self.wxgui_fftsink2_0.win) self.fft_vxx_0 = fft.fft_vcc(fft_len, False, (), False, 1) self.digital_packet_headergenerator_bb_0 = digital.packet_headergenerator_bb(header_formatter.formatter()) self.digital_ofdm_cyclic_prefixer_0 = digital.ofdm_cyclic_prefixer(fft_len, fft_len+fft_len/4, rolloff, length_tag_name) self.digital_ofdm_carrier_allocator_cvc_0 = digital.ofdm_carrier_allocator_cvc(fft_len, occupied_carriers, pilot_carriers, pilot_symbols, length_tag_name) self.digital_crc32_bb_0 = digital.crc32_bb(False, length_tag_name) self.digital_chunks_to_symbols_xx_0_0 = digital.chunks_to_symbols_bc((payload_mod.points()), 1) self.digital_chunks_to_symbols_xx_0 = digital.chunks_to_symbols_bc((header_mod.points()), 1) self.blocks_vector_source_x_1 = blocks.vector_source_c(tuple(numpy.array(sync_word1) * numpy.sqrt(2)) + sync_word2, True, fft_len, tagged_streams.make_lengthtags((2,), (0,), length_tag_name)) self.blocks_vector_source_x_0 = blocks.vector_source_b(range(packet_len), True, 1, tagged_streams.make_lengthtags((packet_len,), (0,), length_tag_name)) self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate) self.blocks_tagged_stream_mux_1 = blocks.tagged_stream_mux(gr.sizeof_gr_complex*fft_len, length_tag_name) self.blocks_tagged_stream_mux_0 = blocks.tagged_stream_mux(gr.sizeof_gr_complex*1, length_tag_name) self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(8, payload_mod.bits_per_symbol(), length_tag_name, False) self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc((0.05, )) ################################################## # Connections ################################################## self.connect((self.blocks_repack_bits_bb_0, 0), (self.digital_chunks_to_symbols_xx_0_0, 0)) self.connect((self.digital_packet_headergenerator_bb_0, 0), (self.digital_chunks_to_symbols_xx_0, 0)) self.connect((self.digital_crc32_bb_0, 0), (self.digital_packet_headergenerator_bb_0, 0)) self.connect((self.digital_crc32_bb_0, 0), (self.blocks_repack_bits_bb_0, 0)) self.connect((self.blocks_vector_source_x_0, 0), (self.digital_crc32_bb_0, 0)) self.connect((self.digital_chunks_to_symbols_xx_0_0, 0), (self.blocks_tagged_stream_mux_0, 1)) self.connect((self.digital_chunks_to_symbols_xx_0, 0), (self.blocks_tagged_stream_mux_0, 0)) self.connect((self.digital_ofdm_cyclic_prefixer_0, 0), (self.blocks_multiply_const_vxx_0, 0)) self.connect((self.digital_ofdm_carrier_allocator_cvc_0, 0), (self.blocks_tagged_stream_mux_1, 1)) self.connect((self.blocks_tagged_stream_mux_1, 0), (self.fft_vxx_0, 0)) self.connect((self.fft_vxx_0, 0), (self.digital_ofdm_cyclic_prefixer_0, 0)) self.connect((self.blocks_tagged_stream_mux_0, 0), (self.digital_ofdm_carrier_allocator_cvc_0, 0)) self.connect((self.blocks_vector_source_x_1, 0), (self.blocks_tagged_stream_mux_1, 0)) self.connect((self.blocks_multiply_const_vxx_0, 0), (self.wxgui_fftsink2_0, 0)) self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_throttle_0, 0)) self.connect((self.blocks_throttle_0, 0), (self.wxgui_scopesink2_0, 0))
def __init__(self):
gr.top_block.__init__(self, "Transmitter NC-OFDM")
filepath = os.getcwd()
global expduration
##################################################
# Read parameter for configuration
##################################################
file_handle = open('/root/gr-ncofdm/examples/config_ncofdm_tx', 'r')
for line in file_handle: # read rest of lines
linefromfile = ([x for x in line.split()])
linesize = len(linefromfile)-1
if linesize > 1:
linedata = map(float, linefromfile[1:linesize+1])
else:
linedata = float(linefromfile[1])
if linefromfile[0] == "fft_len":
fft_len = int(linedata)
elif linefromfile[0] == "cp_len":
cp_len = int(linedata)
elif linefromfile[0] == "shseq_len":
shseq_len = int(linedata)
elif linefromfile[0] == "lgseq_len":
lgseq_len = int(linedata)
elif linefromfile[0] == "dataseq_len":
dataseq_len = int(linedata)
elif linefromfile[0] == "shseq_rep":
shseq_rep = int(linedata)
elif linefromfile[0] == "samp_rate":
samp_rate = int(linedata)
elif linefromfile[0] == "pnseq_offset":
pnseq_offset = int(linedata)
elif linefromfile[0] == "shseq":
shseq = [int(z) for z in linedata]
elif linefromfile[0] == "lgseq":
lgseq = [int(z) for z in linedata]
elif linefromfile[0] == "dataseq":
dataseq = [int(z) for z in linedata]
elif linefromfile[0] == "occupied_carriers":
oc = []
for z in linedata:
oc.append(int(z))
occupied_carriers = ((oc),)#[int(z) for z in linedata]
elif linefromfile[0] == "pilot_carriers":
pc = []
for z in linedata:
pc.append(int(z))
pilot_carriers = ((pc),)#[int(z) for z in linedata]
elif linefromfile[0] == "pilot_symbols":
ps = []
for z in linedata:
ps.append(int(z))
pilot_symbols = ((ps),)#[int(z) for z in linedata]
elif linefromfile[0] == "cen_freq":
cen_freq = linedata
elif linefromfile[0] == "sig_ul_ratio_db":
sig_ul_ratio_db = linedata
elif linefromfile[0] == "usrp_gain":
usrp_gain = linedata
elif linefromfile[0] == "final_gain":
final_gain = linedata
elif linefromfile[0] == "expduration":
expduration = linedata
##################################################
# Variables
##################################################
self.pn_symbols = pn_symbols = (1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, 1, -1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, 1, -1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, -1, -1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, -1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, -1, 1, -1, -1, -1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, -1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, -1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, -1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, -1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 1, -1, -1, 1, -1, -1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, 1, -1, -1, 1, -1, -1, 1, -1, -1, -1, -1, -1, 1, 1, 1, -1, 1, 1, -1, -1, 1, -1, 1, -1, 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1, -1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, -1, -1, 1, -1, 1, -1, 1, -1, 1, 1, -1, 1, -1, 1, -1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, 1, -1, 1, -1, -1, -1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, 1, 1, -1, -1, -1, 1, 1, 1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, 1, 1, -1, 1, 1, 1, 1, 1, -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, -1, 1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, -1, -1, 1, -1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, 1, 1, -1, 1, -1, 1, -1, 1, 1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, -1, -1, -1, 1, 1, 1, -1, 1, 1, -1, -1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, 1, 1, -1, 1, -1, 1, -1, 1, 1, -1, 1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, -1, -1, 1, 1, 1, 1, 1, -1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, -1, 1, -1, 1, 1, -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, -1, 1, 1, -1, 1, 1, 1, 1, 1, 1, -1, -1, 1, -1, 1, -1, -1, 1, -1, 1, 1, -1, -1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 1, 1, 1, -1, 1, 1, 1, -1, -1, -1, -1, -1, 1, -1, 1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, -1, -1, 1, -1, 1, 1, -1, 1, -1, 1, 1, 1, 1, -1, 1, -1, 1, -1, -1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, -1, 1, 1, -1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, 1, -1, 1, -1, 1, -1, -1, -1, -1, -1, 1, 1, 1, -1, -1, -1, 1, 1, 1, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, 1, -1, 1, 1, -1, 1, -1, 1, 1, -1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1, -1, 1, 1, -1, 1, -1, 1, 1, -1, 1, 1, -1, 1, -1, -1, -1, 1, -1, -1, -1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, -1, 1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, 1, -1, -1, -1, 1, 1, -1, 1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, -1, -1, 1, 1, -1, -1, 1, -1, 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, -1, -1, 1, 1, 1, -1, -1, 1, 1, 1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 1, 1, 1, -1, -1, 1, 1, -1, 1, -1, -1, -1, -1, -1, -1, 1, 1, 1, -1, -1, -1, -1, -1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, -1, -1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1, -1, -1, 1, -1, 1, -1, -1, 1, -1, 1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, 1, -1, -1, -1, -1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, 1, 1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1, 1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1, -1, 1, -1, 1, 1, -1, -1, -1, -1, 1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, -1, -1, -1, -1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, 1, -1, 1, 1, 1, 1, 1, 1, -1, 1, -1, -1, -1, 1, 1, 1, -1, 1, 1, 1, -1, -1, 1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, 1, 1, -1, -1, -1, 1, -1, 1, 1, -1, 1, 1, -1, -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, 1, -1, 1, 1, 1, 1, -1, -1, 1, -1, 1, 1, -1, 1, -1, 1, -1, -1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, -1, -1, 1, -1, 1, 1, -1, 1, 1, 1, 1, -1, -1, -1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, -1, -1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, -1, -1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, 1, 1, -1, -1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, -1, 1, -1, -1, 1, 1, 1, 1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, 1, -1, -1, -1, 1, -1, -1, -1, 1, -1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, -1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, 1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, 1, 1, -1, -1, -1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1, -1, 1, 1, 1, -1, 1, -1, 1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, -1, 1, -1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, -1, 1, -1, -1, 1, -1, 1, 1, 1, -1, 1, 1, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, -1, -1, 1, 1, 1, 1, -1, 1, -1, -1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, 1, 1, 1, -1, -1, 1, 1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, -1, -1, -1, 1, 1, 1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, 1, 1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, 1, -1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, 1)
self.shseq_len = shseq_len
self.shseq_rep = shseq_rep
self.occupied_carriers = occupied_carriers
self.lgseq_len = lgseq_len
self.length_tag_name = length_tag_name = "packet_len"
self.fft_len = fft_len
self.dataseq_len = dataseq_len
self.sync_word2 = sync_word2 = (0, 0, 0, 0, 0, 1, 1, -1.0, -1, 1.0, 1, 1.0, -1, -1.0, -1, 1.0, 1, -1.0, 1, 1.0, 1, -1.0, -1, -1.0, -1, 1.0, -1, 1.0, -1, 1.0, 1, -1.0, 0, 1.0, 1, -1.0, 1, 1.0, -1, -1.0, 1, -1.0, -1, -1.0, 1, 1.0, 1, -1.0, 1, 1.0, -1, 1.0, -1, -1.0, -1, 1.0, 1, -1.0, 0, 0, 0, 0, 0, 0)
self.sync_word1 = sync_word1 = (0, 0, 0, 0, 0, 0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 0, 0, 0, 0, 0)
self.sync_len = sync_len = 20
self.sig_ul_ratio_db = sig_ul_ratio_db
self.shseq = shseq = pn_symbols[pnseq_offset:pnseq_offset+shseq_len]
self.samp_rate = samp_rate
self.pilot_symbols = pilot_symbols
self.pilot_carriers = pilot_carriers
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_len = packet_len = len(occupied_carriers[0])
self.lgseq = lgseq = pn_symbols[pnseq_offset+shseq_len:pnseq_offset+shseq_len+lgseq_len]
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, 1, length_tag_name)
self.final_gain = final_gain
self.usrp_gain = usrp_gain
self.dataseq = dataseq = pn_symbols[pnseq_offset+shseq_len+lgseq_len:pnseq_offset+shseq_len+lgseq_len+dataseq_len]
self.data_len = data_len = dataseq_len*20
self.cp_len = cp_len
self.cen_freq = cen_freq
##################################################
# Blocks
##################################################
self.uhd_usrp_sink = uhd.usrp_sink(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_sink.set_samp_rate(samp_rate)
self.uhd_usrp_sink.set_center_freq(cen_freq, 0)
self.uhd_usrp_sink.set_gain(usrp_gain, 0)
self.uhd_usrp_sink.set_antenna("TX/RX", 0)
self.ncofdm_ncofdm_carrier_allocator = ncofdm.ncofdm_carrier_allocator(fft_len, occupied_carriers, (), (), "packet_len")
self.ncofdm_add_cp_underlay = ncofdm.add_cp_underlay(fft_len, cp_len, sig_ul_ratio_db, data_len, shseq_len, shseq_rep, shseq, dataseq_len, dataseq, lgseq_len, lgseq, "packet_len")
self.main_source = blocks.vector_source_b(map(int, numpy.random.randint(0, 200, 10000)), True)
self.fft_vxx = fft.fft_vcc(fft_len, False, (()), True, 1)
self.digital_chunks_to_symbols = digital.chunks_to_symbols_bc((payload_mod.points()), 1)
self.blocks_stream_to_tagged_stream = blocks.stream_to_tagged_stream(gr.sizeof_char, 1, packet_len, "packet_len")
self.blocks_repack_bits = blocks.repack_bits_bb(8, payload_mod.bits_per_symbol(), length_tag_name, False, gr.GR_LSB_FIRST)
self.blocks_overlaygain = blocks.multiply_const_vcc(([1/(math.sqrt(44))]*fft_len))
self.blocks_final_gain = blocks.multiply_const_vcc((final_gain, ))
##################################################
# Connections
##################################################
self.connect((self.blocks_final_gain, 0), (self.uhd_usrp_sink, 0))
self.connect((self.blocks_overlaygain, 0), (self.ncofdm_add_cp_underlay, 0))
self.connect((self.blocks_repack_bits, 0), (self.digital_chunks_to_symbols, 0))
self.connect((self.blocks_stream_to_tagged_stream, 0), (self.blocks_repack_bits, 0))
self.connect((self.digital_chunks_to_symbols, 0), (self.ncofdm_ncofdm_carrier_allocator, 0))
self.connect((self.fft_vxx, 0), (self.blocks_overlaygain, 0))
self.connect((self.main_source, 0), (self.blocks_stream_to_tagged_stream, 0))
self.connect((self.ncofdm_add_cp_underlay, 0), (self.blocks_final_gain, 0))
self.connect((self.ncofdm_ncofdm_carrier_allocator, 0), (self.fft_vxx, 0))
def set_occupied_carriers(self, occupied_carriers):
self.occupied_carriers = occupied_carriers
self.packet_len = len(occupied_carriers[0])
self.set_header_formatter(digital.packet_header_ofdm(self.occupied_carriers, 1, self.length_tag_name))
def __init__(self):
gr.top_block.__init__(self, "OFDM Tx")
Qt.QWidget.__init__(self)
self.setWindowTitle("OFDM Tx")
qtgui.util.check_set_qss()
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "tx_ofdm_updated")
try:
if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
self.restoreGeometry(self.settings.value("geometry").toByteArray())
else:
self.restoreGeometry(self.settings.value("geometry"))
except:
pass
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),)
self.payload_mod = payload_mod = digital.constellation_bpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (list(range(-26, -21)) + list(range(-20, -7)) + list(range(-6, 0)) + list(range(1, 7)) + list(range(8, 21)) + list(range(22, 27)),)
self.length_tag_key = length_tag_key = "packet_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.tx_probe = tx_probe = 0
self.sync_word2_0 = sync_word2_0 = [0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, 0j, 0j, 0j, 0j]
self.sync_word2 = sync_word2 = [0, 0, 0, 0, 0, 0, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, -1, -1, 0, 0, 0, 0, 0]
self.sync_word1_0 = sync_word1_0 = [0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]
self.sync_word1 = sync_word1 = [0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]
self.samp_rate = samp_rate = 50000
self.rx_probe = rx_probe = 0
self.rolloff = rolloff = 0
self.pilot_symbols_0 = pilot_symbols_0 = ((1, 1, 1, -1,),)
self.pilot_carriers_0 = pilot_carriers_0 = ((-21, -7, 7, 21,),)
self.payload_mod_0 = payload_mod_0 = digital.constellation_qpsk()
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)
self.packet_len_0 = packet_len_0 = 96
self.packet_len = packet_len = 96
self.output_signal = output_signal = 0
self.og_signal_probe = og_signal_probe = 0
self.occupied_carriers_0 = occupied_carriers_0 = (list(range(-26, -21)) + list(range(-20, -7)) + list(range(-6, 0)) + list(range(1, 7)) + list(range(8, 21)) + list(range(22, 27)),)
self.length_tag_key_0 = length_tag_key_0 = "frame_len"
self.input_signal = input_signal = 0
self.header_mod_0 = header_mod_0 = digital.constellation_bpsk()
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)
self.hdr_format = hdr_format = digital.header_format_ofdm(occupied_carriers, 1, length_tag_key,)
self.fft_len_0 = fft_len_0 = 64
self.decoded_probe = decoded_probe = 0
##################################################
# Blocks
##################################################
self.blocks_probe_signal_x_4 = blocks.probe_signal_c()
self.blocks_probe_signal_x_3 = blocks.probe_signal_c()
self.blocks_probe_signal_x_2 = blocks.probe_signal_b()
self.blocks_probe_signal_x_0_1 = blocks.probe_signal_b()
self.blocks_probe_signal_x_0_0_0 = blocks.probe_signal_c()
self.blocks_probe_signal_x_0_0 = blocks.probe_signal_c()
def _tx_probe_probe():
global transmitted_data
while True:
val = self.blocks_probe_signal_x_0_0.level()
transmitted_data = val
try:
self.set_tx_probe(val)
except AttributeError:
pass
time.sleep(1.0 / (10))
_tx_probe_thread = threading.Thread(target=_tx_probe_probe)
_tx_probe_thread.daemon = True
_tx_probe_thread.start()
def _rx_probe_probe():
global received_data
while True:
val = self.blocks_probe_signal_x_3.level()
received_data = val
try:
self.set_rx_probe(val)
except AttributeError:
pass
time.sleep(1.0 / (10))
_rx_probe_thread = threading.Thread(target=_rx_probe_probe)
_rx_probe_thread.daemon = True
_rx_probe_thread.start()
self.qtgui_time_sink_x_0_0 = qtgui.time_sink_c(
1024, #size
samp_rate, #samp_rate
'Scope Plot', #name
1 #number of inputs
)
self.qtgui_time_sink_x_0_0.set_update_time(0.10)
self.qtgui_time_sink_x_0_0.set_y_axis(-1, 1)
self.qtgui_time_sink_x_0_0.set_y_label('Amplitude', "")
self.qtgui_time_sink_x_0_0.enable_tags(True)
self.qtgui_time_sink_x_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
self.qtgui_time_sink_x_0_0.enable_autoscale(True)
self.qtgui_time_sink_x_0_0.enable_grid(False)
self.qtgui_time_sink_x_0_0.enable_axis_labels(True)
self.qtgui_time_sink_x_0_0.enable_control_panel(False)
self.qtgui_time_sink_x_0_0.enable_stem_plot(False)
labels = ['Scope Plot', '', '', '', '',
'', '', '', '', '']
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ['blue', 'red', 'green', 'black', 'cyan',
'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
styles = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1,
-1, -1, -1, -1, -1]
for i in range(2):
if len(labels[i]) == 0:
if (i % 2 == 0):
self.qtgui_time_sink_x_0_0.set_line_label(i, "Re{{Data {0}}}".format(i/2))
else:
self.qtgui_time_sink_x_0_0.set_line_label(i, "Im{{Data {0}}}".format(i/2))
else:
self.qtgui_time_sink_x_0_0.set_line_label(i, labels[i])
self.qtgui_time_sink_x_0_0.set_line_width(i, widths[i])
self.qtgui_time_sink_x_0_0.set_line_color(i, colors[i])
self.qtgui_time_sink_x_0_0.set_line_style(i, styles[i])
self.qtgui_time_sink_x_0_0.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_0_0.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_0_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_0_win)
self.qtgui_time_sink_x_0 = qtgui.time_sink_c(
1024, #size
samp_rate, #samp_rate
'Scope Plot', #name
1 #number of inputs
)
self.qtgui_time_sink_x_0.set_update_time(0.10)
self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
self.qtgui_time_sink_x_0.set_y_label('Amplitude', "")
self.qtgui_time_sink_x_0.enable_tags(True)
self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
self.qtgui_time_sink_x_0.enable_autoscale(True)
self.qtgui_time_sink_x_0.enable_grid(False)
self.qtgui_time_sink_x_0.enable_axis_labels(True)
self.qtgui_time_sink_x_0.enable_control_panel(False)
self.qtgui_time_sink_x_0.enable_stem_plot(False)
labels = ['Scope Plot', '', '', '', '',
'', '', '', '', '']
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ['blue', 'red', 'green', 'black', 'cyan',
'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
styles = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1,
-1, -1, -1, -1, -1]
for i in range(2):
if len(labels[i]) == 0:
if (i % 2 == 0):
self.qtgui_time_sink_x_0.set_line_label(i, "Re{{Data {0}}}".format(i/2))
else:
self.qtgui_time_sink_x_0.set_line_label(i, "Im{{Data {0}}}".format(i/2))
else:
self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_win)
self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
'FFT Plot', #name
1
)
self.qtgui_freq_sink_x_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0.enable_autoscale(True)
self.qtgui_freq_sink_x_0.enable_grid(False)
self.qtgui_freq_sink_x_0.set_fft_average(1.0)
self.qtgui_freq_sink_x_0.enable_axis_labels(True)
self.qtgui_freq_sink_x_0.enable_control_panel(False)
labels = ['', '', '', '', '',
'', '', '', '', '']
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in range(1):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_win)
def _output_signal_probe():
global output_data
while True:
val = self.blocks_probe_signal_x_0_1.level()
output_data = val
try:
self.set_output_signal(val)
except AttributeError:
pass
# time.sleep(1.0 / (10))
time.sleep(0.0911)
_output_signal_thread = threading.Thread(target=_output_signal_probe)
_output_signal_thread.daemon = True
_output_signal_thread.start()
def _og_signal_probe_probe():
global encoded_data
while True:
val = self.blocks_probe_signal_x_0_0_0.level()
encoded_data = val
try:
self.set_og_signal_probe(val)
except AttributeError:
pass
time.sleep(1.0 / (10))
_og_signal_probe_thread = threading.Thread(target=_og_signal_probe_probe)
_og_signal_probe_thread.daemon = True
_og_signal_probe_thread.start()
def _input_signal_probe():
global input_data
while True:
val = self.blocks_probe_signal_x_2.level()
input_data = val
try:
self.set_input_signal(val)
except AttributeError:
pass
time.sleep(1.0 / (10))
_input_signal_thread = threading.Thread(target=_input_signal_probe)
_input_signal_thread.daemon = True
_input_signal_thread.start()
self.fft_vxx_1 = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_0_0 = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_0 = fft.fft_vcc(fft_len, False, (), True, 1)
self.digital_protocol_formatter_bb_0 = digital.protocol_formatter_bb(hdr_format, length_tag_key)
self.digital_packet_headerparser_b_0 = digital.packet_headerparser_b(header_formatter.base())
self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(fft_len, fft_len//4, False, 0.9)
self.digital_ofdm_serializer_vcc_payload = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_key, packet_length_tag_key, 1, '', True)
self.digital_ofdm_serializer_vcc_header = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_key, '', 0, '', True)
self.digital_ofdm_frame_equalizer_vcvc_1 = digital.ofdm_frame_equalizer_vcvc(payload_equalizer.base(), fft_len//4, length_tag_key, True, 0)
self.digital_ofdm_frame_equalizer_vcvc_0 = digital.ofdm_frame_equalizer_vcvc(header_equalizer.base(), fft_len//4, length_tag_key, True, 1)
self.digital_ofdm_cyclic_prefixer_0 = digital.ofdm_cyclic_prefixer(fft_len, fft_len + fft_len//4, rolloff, length_tag_key)
self.digital_ofdm_chanest_vcvc_0 = digital.ofdm_chanest_vcvc(sync_word1, sync_word2, 1, 0, 3, False)
self.digital_ofdm_carrier_allocator_cvc_0 = digital.ofdm_carrier_allocator_cvc( fft_len, occupied_carriers, pilot_carriers, pilot_symbols, (sync_word1, sync_word2), length_tag_key, True)
self.digital_header_payload_demux_0 = digital.header_payload_demux(
3,
fft_len,
fft_len//4,
length_tag_key,
"",
True,
gr.sizeof_gr_complex,
"rx_time",
samp_rate,
(),
0)
self.digital_crc32_bb_0_0 = digital.crc32_bb(True, packet_length_tag_key, True)
self.digital_crc32_bb_0 = digital.crc32_bb(False, length_tag_key, True)
self.digital_constellation_decoder_cb_1 = digital.constellation_decoder_cb(payload_mod.base())
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(header_mod.base())
self.digital_chunks_to_symbols_xx_0_0 = digital.chunks_to_symbols_bc(payload_mod.points(), 1)
self.digital_chunks_to_symbols_xx_0 = digital.chunks_to_symbols_bc(header_mod.points(), 1)
def _decoded_probe_probe():
global decoded_signal
while True:
val = self.blocks_probe_signal_x_4.level()
decoded_signal = val
try:
self.set_decoded_probe(val)
except AttributeError:
pass
# time.sleep(1.0 / (10))
time.sleep(0.0911)
_decoded_probe_thread = threading.Thread(target=_decoded_probe_probe)
_decoded_probe_thread.daemon = True
_decoded_probe_thread.start()
self.channels_channel_model_0_0 = channels.channel_model(
noise_voltage=0.15,
frequency_offset=0 * 1.0/fft_len,
epsilon=1.0,
taps=[1.0 + 1.0j],
noise_seed=0,
block_tags=True)
self.blocks_throttle_0_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
self.blocks_tagged_stream_mux_0 = blocks.tagged_stream_mux(gr.sizeof_gr_complex*1, length_tag_key, 0)
self.blocks_tag_gate_0 = blocks.tag_gate(gr.sizeof_gr_complex * 1, False)
self.blocks_tag_gate_0.set_single_key("")
self.blocks_tag_debug_1 = blocks.tag_debug(gr.sizeof_char*1, 'Rx Bytes', "")
self.blocks_tag_debug_1.set_display(True)
self.blocks_stream_to_tagged_stream_0 = blocks.stream_to_tagged_stream(gr.sizeof_char, 1, packet_len, length_tag_key)
self.blocks_repack_bits_bb_0_1 = blocks.repack_bits_bb(payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True, gr.GR_LSB_FIRST)
self.blocks_repack_bits_bb_0_0 = blocks.repack_bits_bb(8, 1, length_tag_key, False, gr.GR_LSB_FIRST)
self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(8, payload_mod.bits_per_symbol(), length_tag_key, False, gr.GR_LSB_FIRST)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_cc(0.05)
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex*1, fft_len+fft_len//4)
self.analog_random_source_x_0 = blocks.vector_source_b(list(map(int, numpy.random.randint(0, 255, 1000))), True)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(-2.0/fft_len)
##################################################
# Connections
##################################################
self.msg_connect((self.digital_packet_headerparser_b_0, u'header_data'), (self.digital_header_payload_demux_0, u'header_data'))
self.connect((self.analog_frequency_modulator_fc_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.analog_random_source_x_0, 0), (self.blocks_probe_signal_x_2, 0))
self.connect((self.analog_random_source_x_0, 0), (self.blocks_stream_to_tagged_stream_0, 0))
self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_tag_gate_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.digital_header_payload_demux_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0), (self.digital_chunks_to_symbols_xx_0_0, 0))
self.connect((self.blocks_repack_bits_bb_0_0, 0), (self.digital_chunks_to_symbols_xx_0, 0))
self.connect((self.blocks_repack_bits_bb_0_1, 0), (self.blocks_probe_signal_x_0_1, 0))
self.connect((self.blocks_repack_bits_bb_0_1, 0), (self.digital_crc32_bb_0_0, 0))
self.connect((self.blocks_stream_to_tagged_stream_0, 0), (self.digital_crc32_bb_0, 0))
self.connect((self.blocks_tag_gate_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.blocks_tagged_stream_mux_0, 0), (self.blocks_probe_signal_x_0_0_0, 0))
self.connect((self.blocks_tagged_stream_mux_0, 0), (self.digital_ofdm_carrier_allocator_cvc_0, 0))
self.connect((self.blocks_tagged_stream_mux_0, 0), (self.qtgui_time_sink_x_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.blocks_probe_signal_x_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.channels_channel_model_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.qtgui_freq_sink_x_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.qtgui_time_sink_x_0, 0))
self.connect((self.blocks_throttle_0_0, 0), (self.blocks_delay_0, 0))
self.connect((self.blocks_throttle_0_0, 0), (self.blocks_probe_signal_x_3, 0))
self.connect((self.blocks_throttle_0_0, 0), (self.digital_ofdm_sync_sc_cfb_0, 0))
self.connect((self.channels_channel_model_0_0, 0), (self.blocks_throttle_0_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0, 0), (self.blocks_tagged_stream_mux_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0_0, 0), (self.blocks_tagged_stream_mux_0, 1))
self.connect((self.digital_constellation_decoder_cb_0, 0), (self.digital_packet_headerparser_b_0, 0))
self.connect((self.digital_constellation_decoder_cb_1, 0), (self.blocks_repack_bits_bb_0_1, 0))
self.connect((self.digital_crc32_bb_0, 0), (self.blocks_repack_bits_bb_0, 0))
self.connect((self.digital_crc32_bb_0, 0), (self.digital_protocol_formatter_bb_0, 0))
self.connect((self.digital_crc32_bb_0_0, 0), (self.blocks_tag_debug_1, 0))
self.connect((self.digital_header_payload_demux_0, 0), (self.fft_vxx_0_0, 0))
self.connect((self.digital_header_payload_demux_0, 1), (self.fft_vxx_1, 0))
self.connect((self.digital_ofdm_carrier_allocator_cvc_0, 0), (self.fft_vxx_0, 0))
self.connect((self.digital_ofdm_chanest_vcvc_0, 0), (self.digital_ofdm_frame_equalizer_vcvc_0, 0))
self.connect((self.digital_ofdm_cyclic_prefixer_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_0, 0), (self.digital_ofdm_serializer_vcc_header, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_1, 0), (self.digital_ofdm_serializer_vcc_payload, 0))
self.connect((self.digital_ofdm_serializer_vcc_header, 0), (self.digital_constellation_decoder_cb_0, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload, 0), (self.blocks_probe_signal_x_4, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload, 0), (self.digital_constellation_decoder_cb_1, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 0), (self.analog_frequency_modulator_fc_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 1), (self.digital_header_payload_demux_0, 1))
self.connect((self.digital_protocol_formatter_bb_0, 0), (self.blocks_repack_bits_bb_0_0, 0))
self.connect((self.fft_vxx_0, 0), (self.digital_ofdm_cyclic_prefixer_0, 0))
self.connect((self.fft_vxx_0_0, 0), (self.digital_ofdm_chanest_vcvc_0, 0))
self.connect((self.fft_vxx_1, 0), (self.digital_ofdm_frame_equalizer_vcvc_1, 0))
def __init__(self):
gr.top_block.__init__(self, "Simu Chaine")
Qt.QWidget.__init__(self)
self.setWindowTitle("Simu Chaine")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "simu_chaine")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((
1,
1,
1,
-1,
), )
self.pilot_carriers = pilot_carriers = ((
-21,
-7,
7,
21,
), )
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (
range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) +
range(8, 21) + range(22, 27), )
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [
0j, 0j, 0j, 0j, 0j, 0j, (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (1 + 0j), (-1 + 0j), 0j, (1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j),
(1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
0j, 0j, 0j, 0j, 0j
]
self.sync_word1 = sync_word1 = [
0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
0., 0., 0., 0., 0.
]
self.samp_rate = samp_rate = 5000000
self.rolloff = rolloff = 0
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols, 1)
self.packet_len = packet_len = 96
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols)
##################################################
# Blocks
##################################################
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join(("serial=30CEEB2", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
self.uhd_usrp_source_0.set_center_freq(2.492e9, 0)
self.uhd_usrp_source_0.set_gain(40, 0)
self.uhd_usrp_source_0.set_antenna("TX/RX", 0)
self.uhd_usrp_sink_0 = uhd.usrp_sink(
",".join(("serial=30CEECB", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
packet_length_tag_key,
)
self.uhd_usrp_sink_0.set_samp_rate(samp_rate)
self.uhd_usrp_sink_0.set_center_freq(2.492e9, 0)
self.uhd_usrp_sink_0.set_gain(100, 0)
self.uhd_usrp_sink_0.set_antenna("TX/RX", 0)
self.qtgui_time_sink_x_2 = qtgui.time_sink_c(
1024, #size
samp_rate, #samp_rate
"", #name
1 #number of inputs
)
self.qtgui_time_sink_x_2.set_update_time(0.10)
self.qtgui_time_sink_x_2.set_y_axis(-1, 1)
self.qtgui_time_sink_x_2.set_y_label("Amplitude", "")
self.qtgui_time_sink_x_2.enable_tags(-1, True)
self.qtgui_time_sink_x_2.set_trigger_mode(qtgui.TRIG_MODE_FREE,
qtgui.TRIG_SLOPE_POS, 0.0, 0,
0, "")
self.qtgui_time_sink_x_2.enable_autoscale(False)
self.qtgui_time_sink_x_2.enable_grid(False)
self.qtgui_time_sink_x_2.enable_control_panel(False)
if not True:
self.qtgui_time_sink_x_2.disable_legend()
labels = ["", "", "", "", "", "", "", "", "", ""]
widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
colors = [
"blue", "red", "green", "black", "cyan", "magenta", "yellow",
"dark red", "dark green", "blue"
]
styles = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2 * 1):
if len(labels[i]) == 0:
if (i % 2 == 0):
self.qtgui_time_sink_x_2.set_line_label(
i, "Re{{Data {0}}}".format(i / 2))
else:
self.qtgui_time_sink_x_2.set_line_label(
i, "Im{{Data {0}}}".format(i / 2))
else:
self.qtgui_time_sink_x_2.set_line_label(i, labels[i])
self.qtgui_time_sink_x_2.set_line_width(i, widths[i])
self.qtgui_time_sink_x_2.set_line_color(i, colors[i])
self.qtgui_time_sink_x_2.set_line_style(i, styles[i])
self.qtgui_time_sink_x_2.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_2.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_2_win = sip.wrapinstance(
self.qtgui_time_sink_x_2.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_time_sink_x_2_win)
self.qtgui_time_sink_x_1 = qtgui.time_sink_c(
1024, #size
samp_rate, #samp_rate
"Rx", #name
1 #number of inputs
)
self.qtgui_time_sink_x_1.set_update_time(0.10)
self.qtgui_time_sink_x_1.set_y_axis(-1, 1)
self.qtgui_time_sink_x_1.set_y_label("Amplitude", "")
self.qtgui_time_sink_x_1.enable_tags(-1, True)
self.qtgui_time_sink_x_1.set_trigger_mode(qtgui.TRIG_MODE_FREE,
qtgui.TRIG_SLOPE_POS, 0.0, 0,
0, "")
self.qtgui_time_sink_x_1.enable_autoscale(False)
self.qtgui_time_sink_x_1.enable_grid(False)
self.qtgui_time_sink_x_1.enable_control_panel(False)
if not True:
self.qtgui_time_sink_x_1.disable_legend()
labels = ["", "", "", "", "", "", "", "", "", ""]
widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
colors = [
"blue", "red", "green", "black", "cyan", "magenta", "yellow",
"dark red", "dark green", "blue"
]
styles = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2 * 1):
if len(labels[i]) == 0:
if (i % 2 == 0):
self.qtgui_time_sink_x_1.set_line_label(
i, "Re{{Data {0}}}".format(i / 2))
else:
self.qtgui_time_sink_x_1.set_line_label(
i, "Im{{Data {0}}}".format(i / 2))
else:
self.qtgui_time_sink_x_1.set_line_label(i, labels[i])
self.qtgui_time_sink_x_1.set_line_width(i, widths[i])
self.qtgui_time_sink_x_1.set_line_color(i, colors[i])
self.qtgui_time_sink_x_1.set_line_style(i, styles[i])
self.qtgui_time_sink_x_1.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_1.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_1_win = sip.wrapinstance(
self.qtgui_time_sink_x_1.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_time_sink_x_1_win)
self.qtgui_time_sink_x_0 = qtgui.time_sink_c(
1024, #size
samp_rate, #samp_rate
"", #name
1 #number of inputs
)
self.qtgui_time_sink_x_0.set_update_time(0.10)
self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
self.qtgui_time_sink_x_0.set_y_label("Amplitude", "")
self.qtgui_time_sink_x_0.enable_tags(-1, True)
self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE,
qtgui.TRIG_SLOPE_POS, 0.0, 0,
0, "")
self.qtgui_time_sink_x_0.enable_autoscale(False)
self.qtgui_time_sink_x_0.enable_grid(False)
self.qtgui_time_sink_x_0.enable_control_panel(False)
if not True:
self.qtgui_time_sink_x_0.disable_legend()
labels = ["", "", "", "", "", "", "", "", "", ""]
widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
colors = [
"blue", "red", "green", "black", "cyan", "magenta", "yellow",
"dark red", "dark green", "blue"
]
styles = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2 * 1):
if len(labels[i]) == 0:
if (i % 2 == 0):
self.qtgui_time_sink_x_0.set_line_label(
i, "Re{{Data {0}}}".format(i / 2))
else:
self.qtgui_time_sink_x_0.set_line_label(
i, "Im{{Data {0}}}".format(i / 2))
else:
self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_0_win = sip.wrapinstance(
self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_time_sink_x_0_win)
self.pir_print_bytes_bb_0 = pir.print_bytes_bb()
self.fft_vxx_1 = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_0_0 = fft.fft_vcc(fft_len, False, (()), True, 1)
self.fft_vxx_0 = fft.fft_vcc(fft_len, True, (()), True, 1)
self.digital_packet_headerparser_b_0 = digital.packet_headerparser_b(
header_formatter.base())
self.digital_packet_headergenerator_bb_0 = digital.packet_headergenerator_bb(
header_formatter.formatter(), packet_length_tag_key)
self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(
fft_len, fft_len / 4, False)
self.digital_ofdm_serializer_vcc_payload = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, packet_length_tag_key,
1, "", True)
self.digital_ofdm_serializer_vcc_header = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, "", 0, "", True)
self.digital_ofdm_frame_equalizer_vcvc_1 = digital.ofdm_frame_equalizer_vcvc(
payload_equalizer.base(), fft_len / 4, length_tag_key, True, 0)
self.digital_ofdm_frame_equalizer_vcvc_0 = digital.ofdm_frame_equalizer_vcvc(
header_equalizer.base(), fft_len / 4, length_tag_key, True, 1)
self.digital_ofdm_cyclic_prefixer_0 = digital.ofdm_cyclic_prefixer(
fft_len, fft_len + fft_len / 4, rolloff, packet_length_tag_key)
self.digital_ofdm_chanest_vcvc_0 = digital.ofdm_chanest_vcvc(
(sync_word1), (sync_word2), 1, 0, 3, False)
self.digital_ofdm_carrier_allocator_cvc_0 = digital.ofdm_carrier_allocator_cvc(
fft_len, occupied_carriers, pilot_carriers, pilot_symbols,
(sync_word1, sync_word2), packet_length_tag_key)
self.digital_header_payload_demux_0 = digital.header_payload_demux(
3,
fft_len,
fft_len / 4,
length_tag_key,
"",
True,
gr.sizeof_gr_complex,
"rx_time",
samp_rate,
(),
)
self.digital_crc32_bb_0_0 = digital.crc32_bb(False,
packet_length_tag_key,
True)
self.digital_crc32_bb_0 = digital.crc32_bb(True, packet_length_tag_key,
True)
self.digital_corr_est_cc_0 = digital.corr_est_cc(
((0.00000 - 0.00000j, -0.23756 + 0.06817j, 0.02455 - 0.06790j,
-0.02923 + 0.05414j, 0.00701 - 0.10558j, 0.07080 - 0.00739j,
0.04334 + 0.00660j, -0.11691 + 0.08759j, 0.09375 + 0.06250j,
0.04313 - 0.10143j, 0.00862 - 0.03317j, -0.05702 + 0.07170j,
-0.09857 - 0.09157j, 0.02654 + 0.03204j, -0.03675 - 0.04537j,
0.06443 + 0.17533j, 0.04419 + 0.00000j, 0.06443 - 0.17533j,
-0.03675 + 0.04537j, 0.02654 - 0.03204j, -0.09857 + 0.09157j,
-0.05702 - 0.07170j, 0.00862 + 0.03317j, 0.04313 + 0.10143j,
0.09375 - 0.06250j, -0.11691 - 0.08759j, 0.04334 - 0.00660j,
0.07080 + 0.00739j, 0.00701 + 0.10558j, -0.02923 - 0.05414j,
0.02455 + 0.06790j, -0.23756 - 0.06817j, 0.00000 + 0.00000j,
0.23756 - 0.06817j, -0.02455 + 0.06790j, 0.02923 - 0.05414j,
-0.00701 + 0.10558j, -0.07080 + 0.00739j, -0.04334 - 0.00660j,
0.11691 - 0.08759j, -0.09375 - 0.06250j, -0.04313 + 0.10143j,
-0.00862 + 0.03317j, 0.05702 - 0.07170j, 0.09857 + 0.09157j,
-0.02654 - 0.03204j, 0.03675 + 0.04537j, -0.06443 - 0.17533j,
-0.04419 + 0.00000j, -0.06443 + 0.17533j, 0.03675 - 0.04537j,
-0.02654 + 0.03204j, 0.09857 - 0.09157j, 0.05702 + 0.07170j,
-0.00862 - 0.03317j, -0.04313 - 0.10143j, -0.09375 + 0.06250j,
0.11691 + 0.08759j, -0.04334 + 0.00660j, -0.07080 - 0.00739j,
-0.00701 - 0.10558j, 0.02923 + 0.05414j, -0.02455 - 0.06790j,
0.23756 + 0.06817j, 0.00000 - 0.00000j, -0.23756 + 0.06817j,
0.02455 - 0.06790j, -0.02923 + 0.05414j, 0.00701 - 0.10558j,
0.07080 - 0.00739j, 0.04334 + 0.00660j, -0.11691 + 0.08759j,
0.09375 + 0.06250j, 0.04313 - 0.10143j, 0.00862 - 0.03317j,
-0.05702 + 0.07170j, -0.09857 - 0.09157j, 0.02654 + 0.03204j,
-0.03675 - 0.04537j, 0.06443 + 0.17533j, 0.06250 + 0.03125j,
-0.10790 - 0.08255j, 0.00182 + 0.03337j, 0.09586 - 0.07711j,
0.06872 + 0.05573j, 0.00373 + 0.04257j, -0.03565 - 0.03853j,
-0.14193 + 0.01821j, -0.15089 - 0.03504j, 0.14492 - 0.01154j,
0.07984 + 0.05798j, -0.06544 - 0.02403j, 0.10927 - 0.05236j,
0.14303 + 0.12879j, -0.04601 - 0.13003j, -0.11594 + 0.05444j,
-0.06250 + 0.00000j, -0.11594 - 0.05444j, -0.04601 + 0.13003j,
0.14303 - 0.12879j, 0.10927 + 0.05236j, -0.06544 + 0.02403j,
0.07984 - 0.05798j, 0.14492 + 0.01154j, -0.15089 + 0.03504j,
-0.14193 - 0.01821j, -0.03565 + 0.03853j, 0.00373 - 0.04257j,
0.06872 - 0.05573j, 0.09586 + 0.07711j, 0.00182 - 0.03337j,
-0.10790 + 0.08255j, 0.06250 - 0.03125j, -0.00527 - 0.11799j,
0.00182 + 0.05304j, 0.05923 + 0.02687j, -0.09460 + 0.11347j,
0.06227 - 0.14667j, -0.03565 + 0.03377j, -0.10488 - 0.05448j,
0.02589 + 0.09754j, 0.06134 - 0.07480j, 0.07984 + 0.06226j,
-0.02766 + 0.02419j, 0.04162 - 0.02844j, -0.09425 - 0.14799j,
-0.04601 + 0.09145j, 0.09289 + 0.12172j, -0.06250 + 0.00000j,
0.09289 - 0.12172j, -0.04601 - 0.09145j, -0.09425 + 0.14799j,
0.04162 + 0.02844j, -0.02766 - 0.02419j, 0.07984 - 0.06226j,
0.06134 + 0.07480j, 0.02589 - 0.09754j, -0.10488 + 0.05448j,
-0.03565 - 0.03377j, 0.06227 + 0.14667j, -0.09460 - 0.11347j,
0.05923 - 0.02687j, 0.00182 - 0.05304j, -0.00527 + 0.11799j,
0.06250 + 0.03125j, -0.10790 - 0.08255j, 0.00182 + 0.03337j,
0.09586 - 0.07711j, 0.06872 + 0.05573j, 0.00373 + 0.04257j,
-0.03565 - 0.03853j, -0.14193 + 0.01821j, -0.15089 - 0.03504j,
0.14492 - 0.01154j, 0.07984 + 0.05798j, -0.06544 - 0.02403j,
0.10927 - 0.05236j, 0.14303 + 0.12879j, -0.04601 - 0.13003j,
-0.11594 + 0.05444j)), 1, 0, 0.999999999)
self.digital_constellation_decoder_cb_1 = digital.constellation_decoder_cb(
payload_mod.base())
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(
header_mod.base())
self.digital_chunks_to_symbols_xx_0_0 = digital.chunks_to_symbols_bc(
(payload_mod.points()), 1)
self.digital_chunks_to_symbols_xx_0 = digital.chunks_to_symbols_bc(
(header_mod.points()), 1)
self.blocks_tagged_stream_mux_0 = blocks.tagged_stream_mux(
gr.sizeof_gr_complex * 1, "packet_len", 0)
self.blocks_tag_gate_0 = blocks.tag_gate(gr.sizeof_gr_complex * 1,
True)
self.blocks_repack_bits_bb_0_0 = blocks.repack_bits_bb(
8, payload_mod.bits_per_symbol(), packet_length_tag_key, False,
gr.GR_LSB_FIRST)
self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(
payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True,
gr.GR_LSB_FIRST)
self.blocks_null_sink_1 = blocks.null_sink(gr.sizeof_char * 1)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_gr_complex * 1)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc((0.05, ))
self.blocks_file_sink_1 = blocks.file_sink(
gr.sizeof_char * 1, "/home/rhidra/pir/test/test_modules/out.txt",
False)
self.blocks_file_sink_1.set_unbuffered(False)
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex * 1,
fft_len + fft_len / 4)
self.analog_random_source_x_0 = blocks.vector_source_b(
map(int, numpy.random.randint(0, 255, 1000)), True)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(
-2.0 / fft_len)
##################################################
# Connections
##################################################
self.msg_connect((self.digital_packet_headerparser_b_0, 'header_data'),
(self.digital_header_payload_demux_0, 'header_data'))
self.connect((self.analog_frequency_modulator_fc_0, 0),
(self.blocks_multiply_xx_0, 0))
self.connect((self.analog_random_source_x_0, 0),
(self.digital_crc32_bb_0_0, 0))
self.connect((self.analog_random_source_x_0, 0),
(self.pir_print_bytes_bb_0, 0))
self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.blocks_tag_gate_0, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.digital_corr_est_cc_0, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.digital_header_payload_demux_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0),
(self.digital_crc32_bb_0, 0))
self.connect((self.blocks_repack_bits_bb_0_0, 0),
(self.digital_chunks_to_symbols_xx_0_0, 0))
self.connect((self.blocks_tag_gate_0, 0),
(self.qtgui_time_sink_x_2, 0))
self.connect((self.blocks_tag_gate_0, 0), (self.uhd_usrp_sink_0, 0))
self.connect((self.blocks_tagged_stream_mux_0, 0),
(self.digital_ofdm_carrier_allocator_cvc_0, 0))
self.connect((self.blocks_tagged_stream_mux_0, 0),
(self.qtgui_time_sink_x_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0, 0),
(self.blocks_tagged_stream_mux_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0_0, 0),
(self.blocks_tagged_stream_mux_0, 1))
self.connect((self.digital_constellation_decoder_cb_0, 0),
(self.digital_packet_headerparser_b_0, 0))
self.connect((self.digital_constellation_decoder_cb_1, 0),
(self.blocks_repack_bits_bb_0, 0))
self.connect((self.digital_corr_est_cc_0, 0),
(self.blocks_null_sink_0, 0))
self.connect((self.digital_crc32_bb_0, 0),
(self.blocks_file_sink_1, 0))
self.connect((self.digital_crc32_bb_0, 0),
(self.blocks_null_sink_1, 0))
self.connect((self.digital_crc32_bb_0_0, 0),
(self.blocks_repack_bits_bb_0_0, 0))
self.connect((self.digital_crc32_bb_0_0, 0),
(self.digital_packet_headergenerator_bb_0, 0))
self.connect((self.digital_header_payload_demux_0, 0),
(self.fft_vxx_0, 0))
self.connect((self.digital_header_payload_demux_0, 1),
(self.fft_vxx_1, 0))
self.connect((self.digital_ofdm_carrier_allocator_cvc_0, 0),
(self.fft_vxx_0_0, 0))
self.connect((self.digital_ofdm_chanest_vcvc_0, 0),
(self.digital_ofdm_frame_equalizer_vcvc_0, 0))
self.connect((self.digital_ofdm_cyclic_prefixer_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_0, 0),
(self.digital_ofdm_serializer_vcc_header, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_1, 0),
(self.digital_ofdm_serializer_vcc_payload, 0))
self.connect((self.digital_ofdm_serializer_vcc_header, 0),
(self.digital_constellation_decoder_cb_0, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload, 0),
(self.digital_constellation_decoder_cb_1, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 0),
(self.analog_frequency_modulator_fc_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 1),
(self.digital_header_payload_demux_0, 1))
self.connect((self.digital_packet_headergenerator_bb_0, 0),
(self.digital_chunks_to_symbols_xx_0, 0))
self.connect((self.fft_vxx_0, 0),
(self.digital_ofdm_chanest_vcvc_0, 0))
self.connect((self.fft_vxx_0_0, 0),
(self.digital_ofdm_cyclic_prefixer_0, 0))
self.connect((self.fft_vxx_1, 0),
(self.digital_ofdm_frame_equalizer_vcvc_1, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.blocks_delay_0, 0))
self.connect((self.uhd_usrp_source_0, 0),
(self.digital_ofdm_sync_sc_cfb_0, 0))
self.connect((self.uhd_usrp_source_0, 0),
(self.qtgui_time_sink_x_1, 0))
def __init__(self):
gr.top_block.__init__(self, "OFDM_TX_RX_1")
Qt.QWidget.__init__(self)
self.setWindowTitle("OFDM_TX_RX_1")
qtgui.util.check_set_qss()
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "OFDM_TX_RX_1")
try:
if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
self.restoreGeometry(
self.settings.value("geometry").toByteArray())
else:
self.restoreGeometry(self.settings.value("geometry"))
except:
pass
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((
1,
1,
1,
-1,
), )
self.pilot_carriers = pilot_carriers = ((
-21,
-7,
7,
21,
), )
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (
list(range(-26, -21)) + list(range(-20, -7)) + list(range(-6, 0)) +
list(range(1, 7)) + list(range(8, 21)) + list(range(22, 27)), )
self.length_tag_key_rx = length_tag_key_rx = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [
0, 0, 0, 0, 0, 0, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1,
1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1,
1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, -1,
-1, 0, 0, 0, 0, 0
]
self.sync_word1 = sync_word1 = [
0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
0., 0., 0., 0., 0.
]
self.samp_rate = samp_rate = 1000000
self.rolloff = rolloff = 0
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols, 1)
self.packet_len = packet_len = 30
self.length_tag_key = length_tag_key = "packet_len"
self.header_len = header_len = 10
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key_rx,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols)
##################################################
# Blocks
##################################################
self.uhd_usrp_sink_0 = uhd.usrp_sink(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
args='',
channels=[],
),
'',
)
self.uhd_usrp_sink_0.set_center_freq(3.555e9, 0)
self.uhd_usrp_sink_0.set_gain(31, 0)
self.uhd_usrp_sink_0.set_antenna('TX/RX', 0)
self.uhd_usrp_sink_0.set_bandwidth(0.5e6, 0)
self.uhd_usrp_sink_0.set_samp_rate(samp_rate)
self.uhd_usrp_sink_0.set_time_unknown_pps(uhd.time_spec())
self.fft_vxx_0 = fft.fft_vcc(fft_len, False, (), True, 1)
self.digital_protocol_formatter_bb_0 = digital.protocol_formatter_bb(
digital.header_format_ofdm(
occupied_carriers,
1,
length_tag_key,
), length_tag_key)
self.digital_ofdm_cyclic_prefixer_0 = digital.ofdm_cyclic_prefixer(
fft_len, fft_len + 16, rolloff, length_tag_key)
self.digital_ofdm_carrier_allocator_cvc_0 = digital.ofdm_carrier_allocator_cvc(
fft_len, occupied_carriers, pilot_carriers, pilot_symbols,
(sync_word1, sync_word2), length_tag_key, True)
self.digital_crc32_bb_0 = digital.crc32_bb(False, length_tag_key, True)
self.digital_chunks_to_symbols_xx_0_0 = digital.chunks_to_symbols_bc(
payload_mod.points(), 1)
self.digital_chunks_to_symbols_xx_0 = digital.chunks_to_symbols_bc(
header_mod.points(), 1)
self.blocks_tagged_stream_mux_0 = blocks.tagged_stream_mux(
gr.sizeof_gr_complex * 1, length_tag_key, 0)
self.blocks_stream_to_tagged_stream_0 = blocks.stream_to_tagged_stream(
gr.sizeof_char, 1, packet_len, length_tag_key)
self.blocks_repack_bits_bb_0_0 = blocks.repack_bits_bb(
8, 1, length_tag_key, False, gr.GR_LSB_FIRST)
self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(
8, payload_mod.bits_per_symbol(), length_tag_key, False,
gr.GR_LSB_FIRST)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_cc(0.05)
self.blocks_file_source_0 = blocks.file_source(
gr.sizeof_char * 1,
'/local/repository/gnuradio/file_to_transmit.txt', False, 0, 0)
self.blocks_file_source_0.set_begin_tag(pmt.PMT_NIL)
##################################################
# Connections
##################################################
self.connect((self.blocks_file_source_0, 0),
(self.blocks_stream_to_tagged_stream_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.uhd_usrp_sink_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0),
(self.digital_chunks_to_symbols_xx_0_0, 0))
self.connect((self.blocks_repack_bits_bb_0_0, 0),
(self.digital_chunks_to_symbols_xx_0, 0))
self.connect((self.blocks_stream_to_tagged_stream_0, 0),
(self.digital_crc32_bb_0, 0))
self.connect((self.blocks_tagged_stream_mux_0, 0),
(self.digital_ofdm_carrier_allocator_cvc_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0, 0),
(self.blocks_tagged_stream_mux_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0_0, 0),
(self.blocks_tagged_stream_mux_0, 1))
self.connect((self.digital_crc32_bb_0, 0),
(self.blocks_repack_bits_bb_0, 0))
self.connect((self.digital_crc32_bb_0, 0),
(self.digital_protocol_formatter_bb_0, 0))
self.connect((self.digital_ofdm_carrier_allocator_cvc_0, 0),
(self.fft_vxx_0, 0))
self.connect((self.digital_ofdm_cyclic_prefixer_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.digital_protocol_formatter_bb_0, 0),
(self.blocks_repack_bits_bb_0_0, 0))
self.connect((self.fft_vxx_0, 0),
(self.digital_ofdm_cyclic_prefixer_0, 0))
def __init__(self):
gr.top_block.__init__(self, "OFDM_TX_RX_1")
Qt.QWidget.__init__(self)
self.setWindowTitle("OFDM_TX_RX_1")
qtgui.util.check_set_qss()
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "OFDM_TX_RX_1")
try:
if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
self.restoreGeometry(self.settings.value("geometry").toByteArray())
else:
self.restoreGeometry(self.settings.value("geometry"))
except:
pass
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (list(range(-26, -21)) + list(range(-20, -7)) + list(range(-6, 0)) + list(range(1, 7)) + list(range(8, 21)) + list(range(22, 27)),)
self.length_tag_key_rx = length_tag_key_rx = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [0, 0, 0, 0, 0, 0, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, -1, -1, 0, 0, 0, 0, 0]
self.sync_word1 = sync_word1 = [0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]
self.samp_rate = samp_rate = 1000000
self.rolloff = rolloff = 0
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)
self.packet_len = packet_len = 30
self.length_tag_key = length_tag_key = "packet_len"
self.header_len = header_len = 10
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key_rx, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)
##################################################
# Blocks
##################################################
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
args='',
channels=[],
),
)
self.uhd_usrp_source_0.set_center_freq(3.555e9, 0)
self.uhd_usrp_source_0.set_gain(36, 0)
self.uhd_usrp_source_0.set_antenna('RX2', 0)
self.uhd_usrp_source_0.set_bandwidth(0.5e6, 0)
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
self.uhd_usrp_source_0.set_time_unknown_pps(uhd.time_spec())
self.qtgui_time_sink_x_0 = qtgui.time_sink_c(
1024, #size
samp_rate, #samp_rate
"", #name
1 #number of inputs
)
self.qtgui_time_sink_x_0.set_update_time(0.10)
self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
self.qtgui_time_sink_x_0.set_y_label('Amplitude', "")
self.qtgui_time_sink_x_0.enable_tags(True)
self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
self.qtgui_time_sink_x_0.enable_autoscale(False)
self.qtgui_time_sink_x_0.enable_grid(False)
self.qtgui_time_sink_x_0.enable_axis_labels(True)
self.qtgui_time_sink_x_0.enable_control_panel(False)
self.qtgui_time_sink_x_0.enable_stem_plot(False)
labels = ['Signal 1', 'Signal 2', 'Signal 3', 'Signal 4', 'Signal 5',
'Signal 6', 'Signal 7', 'Signal 8', 'Signal 9', 'Signal 10']
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ['blue', 'red', 'green', 'black', 'cyan',
'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
styles = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1,
-1, -1, -1, -1, -1]
for i in range(2):
if len(labels[i]) == 0:
if (i % 2 == 0):
self.qtgui_time_sink_x_0.set_line_label(i, "Re{{Data {0}}}".format(i/2))
else:
self.qtgui_time_sink_x_0.set_line_label(i, "Im{{Data {0}}}".format(i/2))
else:
self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_win)
self.fft_vxx_1 = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_0_0 = fft.fft_vcc(fft_len, True, (), True, 1)
self.digital_packet_headerparser_b_0 = digital.packet_headerparser_b(header_formatter.base())
self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(fft_len, 16, False, 0.9)
self.digital_ofdm_serializer_vcc_payload = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_key_rx, packet_length_tag_key, 1, '', True)
self.digital_ofdm_serializer_vcc_header = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_key_rx, '', 0, '', True)
self.digital_ofdm_frame_equalizer_vcvc_1 = digital.ofdm_frame_equalizer_vcvc(payload_equalizer.base(), 16, length_tag_key_rx, True, 0)
self.digital_ofdm_frame_equalizer_vcvc_0 = digital.ofdm_frame_equalizer_vcvc(header_equalizer.base(), 16, length_tag_key_rx, True, 1)
self.digital_ofdm_chanest_vcvc_0 = digital.ofdm_chanest_vcvc(sync_word1, sync_word2, 1, 0, 3, False)
self.digital_header_payload_demux_0 = digital.header_payload_demux(
3,
fft_len,
16,
length_tag_key_rx,
"",
True,
gr.sizeof_gr_complex,
"rx_time",
samp_rate,
(),
0)
self.digital_crc32_bb_0_0 = digital.crc32_bb(True, packet_length_tag_key, True)
self.digital_constellation_decoder_cb_1 = digital.constellation_decoder_cb(payload_mod.base())
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(header_mod.base())
self.blocks_tag_debug_1 = blocks.tag_debug(gr.sizeof_char*1, 'Rx Bytes', "")
self.blocks_tag_debug_1.set_display(False)
self.blocks_repack_bits_bb_0_1 = blocks.repack_bits_bb(payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True, gr.GR_LSB_FIRST)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_char*1, '/tmp/rx.txt', False)
self.blocks_file_sink_0.set_unbuffered(True)
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex*1, 80)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(-2.0/fft_len)
##################################################
# Connections
##################################################
self.msg_connect((self.digital_packet_headerparser_b_0, 'header_data'), (self.digital_header_payload_demux_0, 'header_data'))
self.connect((self.analog_frequency_modulator_fc_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_multiply_xx_0, 0), (self.digital_header_payload_demux_0, 0))
self.connect((self.blocks_repack_bits_bb_0_1, 0), (self.digital_crc32_bb_0_0, 0))
self.connect((self.digital_constellation_decoder_cb_0, 0), (self.digital_packet_headerparser_b_0, 0))
self.connect((self.digital_constellation_decoder_cb_1, 0), (self.blocks_repack_bits_bb_0_1, 0))
self.connect((self.digital_crc32_bb_0_0, 0), (self.blocks_file_sink_0, 0))
self.connect((self.digital_crc32_bb_0_0, 0), (self.blocks_tag_debug_1, 0))
self.connect((self.digital_header_payload_demux_0, 0), (self.fft_vxx_0_0, 0))
self.connect((self.digital_header_payload_demux_0, 1), (self.fft_vxx_1, 0))
self.connect((self.digital_ofdm_chanest_vcvc_0, 0), (self.digital_ofdm_frame_equalizer_vcvc_0, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_0, 0), (self.digital_ofdm_serializer_vcc_header, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_1, 0), (self.digital_ofdm_serializer_vcc_payload, 0))
self.connect((self.digital_ofdm_serializer_vcc_header, 0), (self.digital_constellation_decoder_cb_0, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload, 0), (self.digital_constellation_decoder_cb_1, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 0), (self.analog_frequency_modulator_fc_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 1), (self.digital_header_payload_demux_0, 1))
self.connect((self.fft_vxx_0_0, 0), (self.digital_ofdm_chanest_vcvc_0, 0))
self.connect((self.fft_vxx_1, 0), (self.digital_ofdm_frame_equalizer_vcvc_1, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.blocks_delay_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.digital_ofdm_sync_sc_cfb_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.qtgui_time_sink_x_0, 0))
def __init__(self):
gr.top_block.__init__(self, "TX OFDM")
Qt.QWidget.__init__(self)
self.setWindowTitle("TX OFDM")
qtgui.util.check_set_qss()
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "tx_ofdm_papr")
try:
if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
self.restoreGeometry(
self.settings.value("geometry").toByteArray())
else:
self.restoreGeometry(self.settings.value("geometry"))
except:
pass
##################################################
# Variables
##################################################
self.fft_len = fft_len = 256
self.fft2 = fft2 = int(fft_len / 2)
self.pilot_symbols = pilot_symbols = ((
1,
1,
1,
-1,
), )
self.pilot_carriers = pilot_carriers = ((
-21,
-7,
7,
21,
), )
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (
list(range(-fft2, 0)) + list(range(1, fft2 + 1)), )
self.num_syms = num_syms = 16
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.tx_amp = tx_amp = 1
self.sync_word2 = sync_word2 = [
0j, 0j, 0j, 0j, 0j, 0j, (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (1 + 0j), (-1 + 0j), 0j, (1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j),
(1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
0j, 0j, 0j, 0j, 0j
]
self.sync_word1 = sync_word1 = [
0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
0., 0., 0., 0., 0.
]
self.samp_rate = samp_rate = 1e6
self.rx_gain = rx_gain = 30
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_static(
fft_len, occupied_carriers, pilot_carriers, pilot_symbols, 0, True)
self.packet_len = packet_len = int(96 / 8 * num_syms)
self.offset = offset = 8
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_static(
fft_len, occupied_carriers, pilot_carriers, pilot_symbols, 0, True)
self.freqc = freqc = 900e6
self.frame_len = frame_len = 4096
##################################################
# Blocks
##################################################
self._tx_amp_range = Range(0, 2, .001, 1, 200)
self._tx_amp_win = RangeWidget(self._tx_amp_range, self.set_tx_amp,
'TX Amplitude', "counter_slider", float)
self.top_grid_layout.addWidget(self._tx_amp_win, 1, 0, 1, 8)
for r in range(1, 2):
self.top_grid_layout.setRowStretch(r, 1)
for c in range(0, 8):
self.top_grid_layout.setColumnStretch(c, 1)
self._rx_gain_range = Range(0, 64, 1, 30, 200)
self._rx_gain_win = RangeWidget(self._rx_gain_range, self.set_rx_gain,
'RX Gain', "counter_slider", float)
self.top_grid_layout.addWidget(self._rx_gain_win, 0, 0, 1, 8)
for r in range(0, 1):
self.top_grid_layout.setRowStretch(r, 1)
for c in range(0, 8):
self.top_grid_layout.setColumnStretch(c, 1)
self.wes_max_ff_0 = wes.max_ff(frame_len)
self.qtgui_number_sink_0_1 = qtgui.number_sink(gr.sizeof_float, 0,
qtgui.NUM_GRAPH_HORIZ,
1)
self.qtgui_number_sink_0_1.set_update_time(0.10)
self.qtgui_number_sink_0_1.set_title('PAPR (dB)')
labels = ['', '', '', '', '', '', '', '', '', '']
units = ['', '', '', '', '', '', '', '', '', '']
colors = [("black", "black"), ("black", "black"), ("black", "black"),
("black", "black"), ("black", "black"), ("black", "black"),
("black", "black"), ("black", "black"), ("black", "black"),
("black", "black")]
factor = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
for i in range(1):
self.qtgui_number_sink_0_1.set_min(i, -1)
self.qtgui_number_sink_0_1.set_max(i, 1)
self.qtgui_number_sink_0_1.set_color(i, colors[i][0], colors[i][1])
if len(labels[i]) == 0:
self.qtgui_number_sink_0_1.set_label(i, "Data {0}".format(i))
else:
self.qtgui_number_sink_0_1.set_label(i, labels[i])
self.qtgui_number_sink_0_1.set_unit(i, units[i])
self.qtgui_number_sink_0_1.set_factor(i, factor[i])
self.qtgui_number_sink_0_1.enable_autoscale(False)
self._qtgui_number_sink_0_1_win = sip.wrapinstance(
self.qtgui_number_sink_0_1.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_number_sink_0_1_win, 11, 4,
1, 4)
for r in range(11, 12):
self.top_grid_layout.setRowStretch(r, 1)
for c in range(4, 8):
self.top_grid_layout.setColumnStretch(c, 1)
self.qtgui_number_sink_0 = qtgui.number_sink(gr.sizeof_float, 0,
qtgui.NUM_GRAPH_HORIZ, 1)
self.qtgui_number_sink_0.set_update_time(0.10)
self.qtgui_number_sink_0.set_title('PAPR')
labels = ['', '', '', '', '', '', '', '', '', '']
units = ['', '', '', '', '', '', '', '', '', '']
colors = [("black", "black"), ("black", "black"), ("black", "black"),
("black", "black"), ("black", "black"), ("black", "black"),
("black", "black"), ("black", "black"), ("black", "black"),
("black", "black")]
factor = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
for i in range(1):
self.qtgui_number_sink_0.set_min(i, -1)
self.qtgui_number_sink_0.set_max(i, 1)
self.qtgui_number_sink_0.set_color(i, colors[i][0], colors[i][1])
if len(labels[i]) == 0:
self.qtgui_number_sink_0.set_label(i, "Data {0}".format(i))
else:
self.qtgui_number_sink_0.set_label(i, labels[i])
self.qtgui_number_sink_0.set_unit(i, units[i])
self.qtgui_number_sink_0.set_factor(i, factor[i])
self.qtgui_number_sink_0.enable_autoscale(False)
self._qtgui_number_sink_0_win = sip.wrapinstance(
self.qtgui_number_sink_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_number_sink_0_win, 11, 0, 1,
4)
for r in range(11, 12):
self.top_grid_layout.setRowStretch(r, 1)
for c in range(0, 4):
self.top_grid_layout.setColumnStretch(c, 1)
self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate * 2, #bw
"", #name
1)
self.qtgui_freq_sink_x_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0.set_y_axis(-120, -40)
self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0,
"")
self.qtgui_freq_sink_x_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0.enable_grid(True)
self.qtgui_freq_sink_x_0.set_fft_average(0.1)
self.qtgui_freq_sink_x_0.enable_axis_labels(True)
self.qtgui_freq_sink_x_0.enable_control_panel(True)
labels = ['', '', '', '', '', '', '', '', '', '']
widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
colors = [
"blue", "red", "green", "black", "cyan", "magenta", "yellow",
"dark red", "dark green", "dark blue"
]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
for i in range(1):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0.set_line_label(
i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_win = sip.wrapinstance(
self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_win, 2, 0, 8,
8)
for r in range(2, 10):
self.top_grid_layout.setRowStretch(r, 1)
for c in range(0, 8):
self.top_grid_layout.setColumnStretch(c, 1)
self.iio_pluto_source_0 = iio.pluto_source('usb:1.4.5', int(freqc),
int(samp_rate * 2),
20000000, 32768, True, True,
True, 'manual', rx_gain, '',
True)
self.iio_pluto_sink_0 = iio.pluto_sink('usb:1.3.5', int(freqc),
int(samp_rate), 20000000, 32768,
False, 10.0, '', True)
self.digital_ofdm_tx_0 = digital.ofdm_tx(
fft_len=fft_len,
cp_len=fft_len // 4,
packet_length_tag_key=packet_length_tag_key,
occupied_carriers=occupied_carriers,
bps_header=2,
bps_payload=2,
rolloff=0,
debug_log=False,
scramble_bits=False)
self.blocks_vector_source_x_0 = blocks.vector_source_b((1, 1, 1, 1),
True, 1, [])
self.blocks_stream_to_tagged_stream_0 = blocks.stream_to_tagged_stream(
gr.sizeof_char, 1, packet_len, packet_length_tag_key)
self.blocks_nlog10_ff_0 = blocks.nlog10_ff(10, 1, 0)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_cc(tx_amp /
30)
self.blocks_moving_average_xx_0_0 = blocks.moving_average_ff(
frame_len, 1 / frame_len, frame_len * 4, 1)
self.blocks_moving_average_xx_0 = blocks.moving_average_ff(
frame_len, 1 / frame_len, frame_len * 4, 1)
self.blocks_divide_xx_0 = blocks.divide_ff(1)
self.blocks_complex_to_mag_squared_0 = blocks.complex_to_mag_squared(1)
##################################################
# Connections
##################################################
self.connect((self.blocks_complex_to_mag_squared_0, 0),
(self.blocks_moving_average_xx_0, 0))
self.connect((self.blocks_complex_to_mag_squared_0, 0),
(self.wes_max_ff_0, 0))
self.connect((self.blocks_divide_xx_0, 0),
(self.blocks_moving_average_xx_0_0, 0))
self.connect((self.blocks_moving_average_xx_0, 0),
(self.blocks_divide_xx_0, 1))
self.connect((self.blocks_moving_average_xx_0_0, 0),
(self.blocks_nlog10_ff_0, 0))
self.connect((self.blocks_moving_average_xx_0_0, 0),
(self.qtgui_number_sink_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.blocks_complex_to_mag_squared_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.iio_pluto_sink_0, 0))
self.connect((self.blocks_nlog10_ff_0, 0),
(self.qtgui_number_sink_0_1, 0))
self.connect((self.blocks_stream_to_tagged_stream_0, 0),
(self.digital_ofdm_tx_0, 0))
self.connect((self.blocks_vector_source_x_0, 0),
(self.blocks_stream_to_tagged_stream_0, 0))
self.connect((self.digital_ofdm_tx_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.iio_pluto_source_0, 0),
(self.qtgui_freq_sink_x_0, 0))
self.connect((self.wes_max_ff_0, 0), (self.blocks_divide_xx_0, 0))
def __init__(
self,
pilot_carriers=((-40, -14, 13, 39),),
pilot_symbols=((1, 1, 1, -1),),
occupied_carriers=(
[
-54,
-53,
-52,
-51,
-50,
-49,
-48,
-47,
-46,
-45,
-44,
-43,
-42,
-41,
-39,
-38,
-37,
-36,
-35,
-34,
-33,
-32,
-31,
-30,
-29,
-28,
-27,
-26,
-25,
-24,
-23,
-22,
-21,
-20,
-19,
-18,
-17,
-16,
-15,
-13,
-12,
-11,
-10,
-9,
-8,
-7,
-6,
-5,
-4,
-3,
-2,
-1,
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35,
36,
37,
38,
40,
41,
42,
43,
44,
45,
46,
47,
48,
49,
50,
51,
52,
53,
],
),
samp_rate=10000,
payload_mod="qpsk",
sync_word1=[
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
-1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
-1.42,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
],
sync_word2=[
0j,
0j,
0j,
0j,
0j,
0j,
0j,
0j,
0j,
0j,
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
0j,
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
0j,
0j,
0j,
0j,
0j,
0j,
0j,
0j,
0j,
0j,
],
scramble_mode=0,
crc_mode=0,
clipper_mode=0,
filter_mode=1,
clipping_factor=10,
):
gr.hier_block2.__init__(
self,
"Ofdm Radio Hier",
gr.io_signaturev(2, 2, [gr.sizeof_char * 1, gr.sizeof_gr_complex * 1]),
gr.io_signaturev(2, 2, [gr.sizeof_char * 1, gr.sizeof_gr_complex * 1]),
)
##################################################
# Parameters
##################################################
self.pilot_carriers = pilot_carriers
self.pilot_symbols = pilot_symbols
self.occupied_carriers = occupied_carriers
self.samp_rate = samp_rate
self.sync_word1 = sync_word1
self.sync_word2 = sync_word2
self.scramble_mode = scramble_mode
self.crc_mode = crc_mode
self.clipping_factor = clipping_factor
self.clipper_mode = clipper_mode
self.filter_mode = filter_mode
if payload_mod == "qpsk":
self.payload_mod = payload_mod = digital.constellation_qpsk()
elif payload_mod == "qam16":
self.payload_mod = payload_mod = digital.qam.qam_constellation(16, True, "none", False)
elif payload_mod == "bpsk":
self.payload_mod = payload_mod = digital.constellation_bpsk()
##################################################
# Variables
##################################################
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = (len(sync_word1) + len(sync_word2)) / 2
self.scramble_seed = scramble_seed = 0x7F
self.rolloff = rolloff = 0
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1
)
self.len_ocup_carr = len_ocup_carr = len(occupied_carriers[0])
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=True,
)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols
)
self.forward_OOB = forward_OOB = [
0.40789374966665903,
3.2351160543115207,
11.253435139165413,
22.423991613997735,
27.99555756436666,
22.423991613997735,
11.253435139165425,
3.235116054311531,
0.40789374966666014,
]
self.feedback_OOB = feedback_OOB = [
1.0,
6.170110168740749,
16.888669609673336,
26.73762881119027,
26.75444043101795,
17.322358010203928,
7.091659316015212,
1.682084643429639,
0.17795354282083842,
]
self.cp_len_0 = cp_len_0 = fft_len / 4
self.cp_len = cp_len = fft_len / 4
self.active_carriers = active_carriers = len(occupied_carriers[0]) + 4
##################################################
# Blocks
##################################################
self.ofdm_tools_clipper_0 = ofdm_tools.clipper_cc(clipping_factor)
self.iir_filter_xxx_1 = filter.iir_filter_ccd((forward_OOB), (feedback_OOB), False)
self.fft_vxx_txpath = fft.fft_vcc(fft_len, False, (()), True, 1)
self.fft_vxx_2_rxpath = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_1_rxpath = fft.fft_vcc(fft_len, True, (()), True, 1)
self.digital_packet_headerparser_b_rxpath = digital.packet_headerparser_b(header_formatter.base())
self.digital_packet_headergenerator_bb_txpath = digital.packet_headergenerator_bb(
header_formatter.formatter(), "packet_len"
)
self.digital_ofdm_sync_sc_cfb_rxpath = digital.ofdm_sync_sc_cfb(fft_len, fft_len / 4, False)
self.digital_ofdm_serializer_vcc_payload_rxpath = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, packet_length_tag_key, 1, "", True
)
self.digital_ofdm_serializer_vcc_header_rxpath = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, "", 0, "", True
)
self.digital_ofdm_frame_equalizer_vcvc_2_rxpath = digital.ofdm_frame_equalizer_vcvc(
payload_equalizer.base(), cp_len, length_tag_key, True, 0
)
self.digital_ofdm_frame_equalizer_vcvc_1_rxpath = digital.ofdm_frame_equalizer_vcvc(
header_equalizer.base(), cp_len, length_tag_key, True, 1
)
self.digital_ofdm_cyclic_prefixer_txpath = digital.ofdm_cyclic_prefixer(
fft_len, fft_len + cp_len, rolloff, packet_length_tag_key
)
(self.digital_ofdm_cyclic_prefixer_txpath).set_min_output_buffer(24000)
self.digital_ofdm_chanest_vcvc_rxpath = digital.ofdm_chanest_vcvc((sync_word1), (sync_word2), 1, 0, 3, False)
self.digital_ofdm_carrier_allocator_cvc_txpath = digital.ofdm_carrier_allocator_cvc(
fft_len, occupied_carriers, pilot_carriers, pilot_symbols, (sync_word1, sync_word2), packet_length_tag_key
)
(self.digital_ofdm_carrier_allocator_cvc_txpath).set_min_output_buffer(16000)
self.digital_header_payload_demux_rxpath = digital.header_payload_demux(
3, fft_len, cp_len, length_tag_key, "", True, gr.sizeof_gr_complex, "rx_time", samp_rate, ()
)
self.digital_crc32_bb_txpath = digital.crc32_bb(False, packet_length_tag_key)
self.digital_crc32_bb_rxpath = digital.crc32_bb(True, packet_length_tag_key)
self.digital_constellation_decoder_cb_1_rxpath = digital.constellation_decoder_cb(payload_mod.base())
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(header_mod.base())
self.digital_chunks_to_symbols_x_txpath = digital.chunks_to_symbols_bc((payload_mod.points()), 1)
self.digital_chunks_to_symbols_txpath = digital.chunks_to_symbols_bc((header_mod.points()), 1)
self.digital_additive_scrambler_bb_txpath_0 = digital.additive_scrambler_bb(
0x8A, 0x7F, 7, 0, bits_per_byte=8, reset_tag_key=self.packet_length_tag_key
)
self.digital_additive_scrambler_bb_rxpath_0 = digital.additive_scrambler_bb(
0x8A, 0x7F, 7, 0, bits_per_byte=8, reset_tag_key=self.packet_length_tag_key
)
self.blocks_tagged_stream_mux_txpath = blocks.tagged_stream_mux(
gr.sizeof_gr_complex * 1, packet_length_tag_key, 0
)
(self.blocks_tagged_stream_mux_txpath).set_min_output_buffer(16000)
self.blocks_tag_gate_txpath = blocks.tag_gate(gr.sizeof_gr_complex * 1, False)
self.blocks_repack_bits_bb_txpath = blocks.repack_bits_bb(
8, payload_mod.bits_per_symbol(), packet_length_tag_key, False
)
self.blocks_repack_bits_bb_rxpath = blocks.repack_bits_bb(
payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True
)
self.blocks_multiply_xx_rxpath = blocks.multiply_vcc(1)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc((0.01,))
self.blocks_delay_rxpath = blocks.delay(gr.sizeof_gr_complex * 1, fft_len + fft_len / 4)
self.blks2_selector_0_2 = grc_blks2.selector(
item_size=gr.sizeof_gr_complex * 1, num_inputs=2, num_outputs=1, input_index=clipper_mode, output_index=0
)
self.blks2_selector_0_1 = grc_blks2.selector(
item_size=gr.sizeof_char * 1, num_inputs=2, num_outputs=1, input_index=scramble_mode, output_index=0
)
self.blks2_selector_0_0_0 = grc_blks2.selector(
item_size=gr.sizeof_char * 1, num_inputs=2, num_outputs=1, input_index=scramble_mode, output_index=0
)
self.blks2_selector_0_0 = grc_blks2.selector(
item_size=gr.sizeof_char * 1, num_inputs=2, num_outputs=1, input_index=crc_mode, output_index=0
)
self.blks2_selector_0 = grc_blks2.selector(
item_size=gr.sizeof_char * 1, num_inputs=2, num_outputs=1, input_index=crc_mode, output_index=0
)
self.blks2_selector_0_2_0 = grc_blks2.selector(
item_size=gr.sizeof_gr_complex * 1, num_inputs=2, num_outputs=1, input_index=filter_mode, output_index=0
)
self.analog_frequency_modulator_fc_rxpath = analog.frequency_modulator_fc(-2.0 / fft_len)
self.analog_agc2_xx_0 = analog.agc2_cc(1e-1, 1e-2, 1.0, 1.0)
self.analog_agc2_xx_0.set_max_gain(65536)
##################################################
# Connections
##################################################
self.connect((self.digital_ofdm_sync_sc_cfb_rxpath, 0), (self.analog_frequency_modulator_fc_rxpath, 0))
self.connect((self.analog_agc2_xx_0, 0), (self.digital_ofdm_sync_sc_cfb_rxpath, 0))
self.connect((self.analog_agc2_xx_0, 0), (self.blocks_delay_rxpath, 0))
self.connect((self.digital_packet_headergenerator_bb_txpath, 0), (self.digital_chunks_to_symbols_txpath, 0))
self.connect((self.blocks_repack_bits_bb_txpath, 0), (self.digital_chunks_to_symbols_x_txpath, 0))
self.connect((self.digital_chunks_to_symbols_txpath, 0), (self.blocks_tagged_stream_mux_txpath, 0))
self.connect((self.digital_chunks_to_symbols_x_txpath, 0), (self.blocks_tagged_stream_mux_txpath, 1))
self.connect((self.digital_ofdm_cyclic_prefixer_txpath, 0), (self.blocks_tag_gate_txpath, 0))
self.connect((self.fft_vxx_txpath, 0), (self.digital_ofdm_cyclic_prefixer_txpath, 0))
self.connect((self.blocks_tagged_stream_mux_txpath, 0), (self.digital_ofdm_carrier_allocator_cvc_txpath, 0))
self.connect((self.digital_ofdm_carrier_allocator_cvc_txpath, 0), (self.fft_vxx_txpath, 0))
self.connect((self.digital_header_payload_demux_rxpath, 0), (self.fft_vxx_1_rxpath, 0))
self.connect((self.fft_vxx_1_rxpath, 0), (self.digital_ofdm_chanest_vcvc_rxpath, 0))
self.connect(
(self.digital_ofdm_frame_equalizer_vcvc_1_rxpath, 0), (self.digital_ofdm_serializer_vcc_header_rxpath, 0)
)
self.connect((self.digital_ofdm_chanest_vcvc_rxpath, 0), (self.digital_ofdm_frame_equalizer_vcvc_1_rxpath, 0))
self.connect((self.digital_header_payload_demux_rxpath, 1), (self.fft_vxx_2_rxpath, 0))
self.connect(
(self.digital_ofdm_frame_equalizer_vcvc_2_rxpath, 0), (self.digital_ofdm_serializer_vcc_payload_rxpath, 0)
)
self.connect((self.fft_vxx_2_rxpath, 0), (self.digital_ofdm_frame_equalizer_vcvc_2_rxpath, 0))
self.connect(
(self.digital_ofdm_serializer_vcc_payload_rxpath, 0), (self.digital_constellation_decoder_cb_1_rxpath, 0)
)
self.connect((self.digital_constellation_decoder_cb_1_rxpath, 0), (self.blocks_repack_bits_bb_rxpath, 0))
self.connect((self.digital_ofdm_serializer_vcc_header_rxpath, 0), (self.digital_constellation_decoder_cb_0, 0))
self.connect((self.analog_frequency_modulator_fc_rxpath, 0), (self.blocks_multiply_xx_rxpath, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_rxpath, 1), (self.digital_header_payload_demux_rxpath, 1))
self.connect((self.blocks_multiply_xx_rxpath, 0), (self.digital_header_payload_demux_rxpath, 0))
self.connect((self.blocks_delay_rxpath, 0), (self.blocks_multiply_xx_rxpath, 1))
self.connect((self.digital_constellation_decoder_cb_0, 0), (self.digital_packet_headerparser_b_rxpath, 0))
self.connect((self, 0), (self.digital_crc32_bb_txpath, 0))
self.connect((self, 1), (self.analog_agc2_xx_0, 0))
self.connect((self.blocks_tag_gate_txpath, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self, 0), (self.blks2_selector_0, 0))
self.connect((self.digital_crc32_bb_txpath, 0), (self.blks2_selector_0, 1))
self.connect((self.blks2_selector_0_1, 0), (self.blocks_repack_bits_bb_txpath, 0))
self.connect((self.blks2_selector_0, 0), (self.digital_packet_headergenerator_bb_txpath, 0))
self.connect((self.blks2_selector_0, 0), (self.digital_additive_scrambler_bb_txpath_0, 0))
self.connect((self.digital_additive_scrambler_bb_txpath_0, 0), (self.blks2_selector_0_1, 1))
self.connect((self.blks2_selector_0, 0), (self.blks2_selector_0_1, 0))
self.connect((self.digital_crc32_bb_rxpath, 0), (self.blks2_selector_0_0, 1))
self.connect((self.digital_additive_scrambler_bb_rxpath_0, 0), (self.blks2_selector_0_0_0, 1))
self.connect((self.blocks_repack_bits_bb_rxpath, 0), (self.digital_additive_scrambler_bb_rxpath_0, 0))
self.connect((self.blocks_repack_bits_bb_rxpath, 0), (self.blks2_selector_0_0_0, 0))
self.connect((self.blks2_selector_0_0_0, 0), (self.digital_crc32_bb_rxpath, 0))
self.connect((self.blks2_selector_0_0_0, 0), (self.blks2_selector_0_0, 0))
self.connect((self.blks2_selector_0_0, 0), (self, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.ofdm_tools_clipper_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blks2_selector_0_2, 0))
self.connect(self.blks2_selector_0_2, self.iir_filter_xxx_1)
self.connect(self.blks2_selector_0_2, (self.blks2_selector_0_2_0, 0))
self.connect(self.iir_filter_xxx_1, (self.blks2_selector_0_2_0, 1))
self.connect(self.blks2_selector_0_2_0, (self, 1))
self.connect((self.ofdm_tools_clipper_0, 0), (self.blks2_selector_0_2, 1))
##################################################
# Asynch Message Connections
##################################################
self.msg_connect(
self.digital_packet_headerparser_b_rxpath,
"header_data",
self.digital_header_payload_demux_rxpath,
"header_data",
)
def __init__(
self, ipp1="127.0.0.1", ipp2="127.0.0.1", ipp3="127.0.0.1", ipp4="127.0.0.1", iptx="127.0.0.1", samp_rate=10000
):
gr.top_block.__init__(self, "OFDM Rx")
##################################################
# Parameters
##################################################
self.ipp1 = ipp1
self.ipp2 = ipp2
self.ipp3 = ipp3
self.ipp4 = ipp4
self.iptx = iptx
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (
range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),
)
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [
0j,
0j,
0j,
0j,
0j,
0j,
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
0j,
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
0j,
0j,
0j,
0j,
0j,
]
self.sync_word1 = sync_word1 = [
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
]
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1
)
self.packet_len = packet_len = 96
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False,
)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols
)
##################################################
# Blocks
##################################################
self.zeromq_push_sink_0 = zeromq.push_sink(gr.sizeof_gr_complex, 1, "tcp://" + iptx + ":55500", 100, True)
self.my_random_source_limit_rate_0 = my.random_source_limit_rate(10000000)
self.my_number_sync_timestamp_0 = my.number_sync_timestamp()
self.digital_ofdm_tx_0 = digital.ofdm_tx(
fft_len=fft_len,
cp_len=fft_len / 4,
packet_length_tag_key=packet_length_tag_key,
occupied_carriers=occupied_carriers,
pilot_carriers=pilot_carriers,
pilot_symbols=pilot_symbols,
sync_word1=sync_word1,
sync_word2=sync_word2,
bps_header=1,
bps_payload=2,
rolloff=0,
debug_log=True,
scramble_bits=False,
)
self.channels_channel_model_0 = channels.channel_model(
noise_voltage=0.0, frequency_offset=0.0, epsilon=1.0, taps=(1.0,), noise_seed=0, block_tags=False
)
self.blocks_stream_to_tagged_stream_0 = blocks.stream_to_tagged_stream(
gr.sizeof_char, 1, packet_len, packet_length_tag_key
)
(self.blocks_stream_to_tagged_stream_0).set_max_output_buffer(1)
##################################################
# Connections
##################################################
self.connect((self.blocks_stream_to_tagged_stream_0, 0), (self.digital_ofdm_tx_0, 0))
self.connect((self.blocks_stream_to_tagged_stream_0, 0), (self.my_number_sync_timestamp_0, 0))
self.connect((self.channels_channel_model_0, 0), (self.zeromq_push_sink_0, 0))
self.connect((self.digital_ofdm_tx_0, 0), (self.channels_channel_model_0, 0))
self.connect((self.my_random_source_limit_rate_0, 0), (self.blocks_stream_to_tagged_stream_0, 0))
def __init__(self, address="addr=192.168.10.2", tx_gain=0, cfreq=450e6):
gr.top_block.__init__(self, "Bs Main")
##################################################
# Parameters
##################################################
self.address = address
self.tx_gain = tx_gain
self.cfreq = cfreq
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((
1,
1,
1,
-1,
), )
self.pilot_carriers = pilot_carriers = ((
-21,
-7,
7,
21,
), )
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (
range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) +
range(8, 21) + range(22, 27), )
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [
0, 0, 0, 0, 0, 0, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1,
1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1,
1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, -1, -1, -1,
-1, 0, 0, 0, 0, 0
]
self.sync_word1 = sync_word1 = [
0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
0., 0., 0., 0., 0.
]
self.samp_rate = samp_rate = 500000
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols, 1)
self.packet_len = packet_len = 12
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols)
self.h_3 = h_3 = 0
self.h_2 = h_2 = 0
self.h_1 = h_1 = 0
self.h_0 = h_0 = 1.0
##################################################
# Blocks
##################################################
self.x_3 = blocks.probe_signal_c()
self.x_2 = blocks.probe_signal_c()
self.x_1 = blocks.probe_signal_c()
self.x_0 = blocks.probe_signal_c()
def _h_3_probe():
while True:
val = self.x_3.level()
try:
self.set_h_3(val)
except AttributeError:
pass
time.sleep(1.0 / (10))
_h_3_thread = threading.Thread(target=_h_3_probe)
_h_3_thread.daemon = True
_h_3_thread.start()
def _h_2_probe():
while True:
val = self.x_2.level()
try:
self.set_h_2(val)
except AttributeError:
pass
time.sleep(1.0 / (100))
_h_2_thread = threading.Thread(target=_h_2_probe)
_h_2_thread.daemon = True
_h_2_thread.start()
def _h_1_probe():
while True:
val = self.x_1.level()
try:
self.set_h_1(val)
except AttributeError:
pass
time.sleep(1.0 / (1000))
_h_1_thread = threading.Thread(target=_h_1_probe)
_h_1_thread.daemon = True
_h_1_thread.start()
def _h_0_probe():
while True:
val = self.x_0.level()
try:
self.set_h_0(val)
except AttributeError:
pass
time.sleep(1.0 / (10))
_h_0_thread = threading.Thread(target=_h_0_probe)
_h_0_thread.daemon = True
_h_0_thread.start()
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join((address, "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
self.uhd_usrp_source_0.set_center_freq(cfreq, 0)
self.uhd_usrp_source_0.set_gain(0, 0)
self.uhd_usrp_source_0.set_antenna("RX2", 0)
self.uhd_usrp_sink_0 = uhd.usrp_sink(
",".join((address, "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
"packet_len",
)
self.uhd_usrp_sink_0.set_samp_rate(samp_rate)
self.uhd_usrp_sink_0.set_center_freq(cfreq, 0)
self.uhd_usrp_sink_0.set_gain(tx_gain, 0)
self.uhd_usrp_sink_0.set_antenna("TX/RX", 0)
self.projectGT_detect_gen_mac_b_0 = projectGT.detect_gen_mac_b(
"packet_len")
self.ofdm_rx_phase_1_0 = ofdm_rx_phase_1(
pilot_carriers=pilot_carriers,
pilot_symbols=pilot_symbols,
header_mod=header_mod,
payload_mod=payload_mod,
occupied_carriers=occupied_carriers,
sync_word2=sync_word2,
sync_word1=sync_word1,
fft_len=fft_len,
packet_len=packet_len,
samp_rate=samp_rate,
)
self.channels_channel_model_0_1 = channels.channel_model(
noise_voltage=0.4,
frequency_offset=0.0,
epsilon=1.0,
taps=(1.0, ),
noise_seed=895,
block_tags=False)
self.channels_channel_model_0_0_1 = channels.channel_model(
noise_voltage=0.15,
frequency_offset=0.0,
epsilon=1.0,
taps=(1.0, ),
noise_seed=8217,
block_tags=False)
self.channels_channel_model_0_0_0 = channels.channel_model(
noise_voltage=0.05,
frequency_offset=0.0,
epsilon=1.0,
taps=(1.0, ),
noise_seed=7156,
block_tags=False)
self.channels_channel_model_0_0 = channels.channel_model(
noise_voltage=1.0,
frequency_offset=0.0,
epsilon=1.0,
taps=(1.0, ),
noise_seed=289,
block_tags=False)
self.channels_channel_model_0 = channels.channel_model(
noise_voltage=0.00,
frequency_offset=0.0,
epsilon=1.0,
taps=(h_0 /
(math.sqrt(0.0001 + pow(abs(h_0), 2) + pow(abs(h_1), 2) +
pow(abs(h_2), 2) + pow(abs(h_3), 2))), h_1 /
(math.sqrt(0.0001 + pow(abs(h_0), 2) + pow(abs(h_1), 2) +
pow(abs(h_2), 2) + pow(abs(h_3), 2))), h_2 /
(math.sqrt(0.0001 + pow(abs(h_0), 2) + pow(abs(h_1), 2) +
pow(abs(h_2), 2) + pow(abs(h_3), 2))), h_3 /
(math.sqrt(0.0001 + pow(abs(h_0), 2) + pow(abs(h_1), 2) +
pow(abs(h_2), 2) + pow(abs(h_3), 2)))),
noise_seed=0,
block_tags=True)
self.blocks_tag_debug_2 = blocks.tag_debug(gr.sizeof_char * 1,
"Data Out", "")
self.blocks_tag_debug_2.set_display(True)
self.blocks_tag_debug_1 = blocks.tag_debug(gr.sizeof_char * 1, "", "")
self.blocks_tag_debug_1.set_display(False)
self.blocks_tag_debug_0 = blocks.tag_debug(gr.sizeof_char * 1,
"RX data", "")
self.blocks_tag_debug_0.set_display(True)
self.blocks_stream_to_tagged_stream_1 = blocks.stream_to_tagged_stream(
gr.sizeof_gr_complex, 1, 720, "packet_len")
self.blocks_pdu_to_tagged_stream_0 = blocks.pdu_to_tagged_stream(
blocks.byte_t, "packet_len")
self.blocks_null_source_0_1 = blocks.null_source(gr.sizeof_gr_complex *
1)
self.blocks_null_source_0_0_0 = blocks.null_source(
gr.sizeof_gr_complex * 1)
self.blocks_null_source_0_0 = blocks.null_source(gr.sizeof_gr_complex *
1)
self.blocks_null_source_0 = blocks.null_source(gr.sizeof_gr_complex *
1)
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex * 1, 8)
self.OFDM_TX_Phase_1_0 = OFDM_TX_Phase_1(
fft_len=fft_len,
pilot_carriers=pilot_carriers,
occupied_carriers=occupied_carriers,
packet_len=packet_len,
header_mod=header_mod,
payload_mod=payload_mod,
rolloff=0,
pilot_symbols=pilot_symbols,
sync_word2=sync_word2,
sync_word1=sync_word1,
prefix=fft_len / 4,
samp_rate=samp_rate,
)
##################################################
# Connections
##################################################
self.msg_connect(self.projectGT_detect_gen_mac_b_0, "pdus",
self.blocks_pdu_to_tagged_stream_0, "pdus")
self.connect((self.OFDM_TX_Phase_1_0, 0),
(self.channels_channel_model_0, 0))
self.connect((self.blocks_delay_0, 0),
(self.blocks_stream_to_tagged_stream_1, 0))
self.connect((self.blocks_null_source_0, 0),
(self.channels_channel_model_0_0, 0))
self.connect((self.blocks_null_source_0_0, 0),
(self.channels_channel_model_0_0_0, 0))
self.connect((self.blocks_null_source_0_0_0, 0),
(self.channels_channel_model_0_0_1, 0))
self.connect((self.blocks_null_source_0_1, 0),
(self.channels_channel_model_0_1, 0))
self.connect((self.blocks_pdu_to_tagged_stream_0, 0),
(self.OFDM_TX_Phase_1_0, 0))
self.connect((self.blocks_pdu_to_tagged_stream_0, 0),
(self.blocks_tag_debug_2, 0))
self.connect((self.blocks_stream_to_tagged_stream_1, 0),
(self.uhd_usrp_sink_0, 0))
self.connect((self.channels_channel_model_0, 0),
(self.blocks_delay_0, 0))
self.connect((self.channels_channel_model_0_0, 0), (self.x_0, 0))
self.connect((self.channels_channel_model_0_0_0, 0), (self.x_2, 0))
self.connect((self.channels_channel_model_0_0_1, 0), (self.x_3, 0))
self.connect((self.channels_channel_model_0_1, 0), (self.x_1, 0))
self.connect((self.ofdm_rx_phase_1_0, 0), (self.blocks_tag_debug_0, 0))
self.connect((self.ofdm_rx_phase_1_0, 1), (self.blocks_tag_debug_1, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.ofdm_rx_phase_1_0, 0))
self.connect((self.ofdm_rx_phase_1_0, 1),
(self.projectGT_detect_gen_mac_b_0, 0))
def __init__(self, samp_rate=10000):
gr.hier_block2.__init__(
self, "Sync Radio Hier Grc",
gr.io_signaturev(2, 2, [gr.sizeof_char*1, gr.sizeof_gr_complex*1]),
gr.io_signaturev(2, 2, [gr.sizeof_char*1, gr.sizeof_gr_complex*1]),
)
##################################################
# Parameters
##################################################
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.sync_word2 = sync_word2 = [0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,(1+0j),(-1+0j),(-1+0j),(-1+0j),(1+0j),(-1+0j),(1+0j),(-1+0j),(-1+0j),(-1+0j),(-1+0j),(-1+0j),(-1+0j),(-1+0j),(-1+0j),(1+0j),0j,(1+0j),(-1+0j),(1+0j),(1+0j),(1+0j),(-1+0j),(1+0j),(1+0j),(1+0j),(-1+0j),(1+0j),(1+0j),(1+0j),(1+0j),(-1+0j),0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j,0j]
self.sync_word1 = sync_word1 = [0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,1.42,0.0,-1.42,0.0,1.42,0.0,1.42,0.0,1.42,0.0,1.42,0.0,-1.42,0.0,1.42,0.0,1.42,0.0,-1.42,0.0,1.42,0.0,1.42,0.0,1.42,0.0,-1.42,0.0,1.42,0.0,1.42,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0]
self.pilot_symbols = pilot_symbols = ((1, -1,),)
self.pilot_carriers = pilot_carriers = ((-13, 12,),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = ([-16, -15, -14, -12, -11, -10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15],)
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = (len(sync_word1)+len(sync_word2))/2
self.rolloff = rolloff = 0
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)
self.len_ocup_carr = len_ocup_carr = len(occupied_carriers[0])
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=True)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)
self.forward_OOB = forward_OOB = [0.005277622700213007, 0.03443705907448985, 0.1214101788557494, 0.29179662246081545, 0.52428014905364, 0.7350677973792328, 0.8210395030022875, 0.7350677973792348, 0.5242801490536404, 0.291796622460816, 0.1214101788557501, 0.03443705907448997, 0.005277622700213012]
self.feedback_OOB = feedback_OOB = [1.0, -1.0455317889337852, 3.9201525346250072, -3.9114761684448958, 6.54266144224035, -5.737287389902878, 5.820328302284336, -4.134700802700442, 2.7949972248757664, -1.4584448495689168, 0.6358650797085171, -0.19847981428665007, 0.04200458351675313]
self.cp_len = cp_len = fft_len/4
self.active_carriers = active_carriers = len(occupied_carriers[0])+4
##################################################
# Blocks
##################################################
self.iir_filter_xxx_1 = filter.iir_filter_ccd((forward_OOB), (feedback_OOB), False)
self.fft_vxx_txpath = fft.fft_vcc(fft_len, False, (()), True, 1)
self.fft_vxx_2_rxpath = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_1_rxpath = fft.fft_vcc(fft_len, True, (()), True, 1)
self.digital_packet_headerparser_b_rxpath = digital.packet_headerparser_b(header_formatter.base())
self.digital_packet_headergenerator_bb_txpath = digital.packet_headergenerator_bb(header_formatter.formatter(), "packet_len")
self.digital_ofdm_sync_sc_cfb_rxpath = digital.ofdm_sync_sc_cfb(fft_len, fft_len/4, False)
self.digital_ofdm_serializer_vcc_payload_rxpath = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_key, packet_length_tag_key, 1, "", True)
self.digital_ofdm_serializer_vcc_header_rxpath = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_key, "", 0, "", True)
self.digital_ofdm_frame_equalizer_vcvc_2_rxpath = digital.ofdm_frame_equalizer_vcvc(payload_equalizer.base(), cp_len, length_tag_key, True, 0)
self.digital_ofdm_frame_equalizer_vcvc_1_rxpath = digital.ofdm_frame_equalizer_vcvc(header_equalizer.base(), cp_len, length_tag_key, True, 1)
self.digital_ofdm_cyclic_prefixer_txpath = digital.ofdm_cyclic_prefixer(fft_len, fft_len+cp_len, rolloff, packet_length_tag_key)
(self.digital_ofdm_cyclic_prefixer_txpath).set_min_output_buffer(24000)
self.digital_ofdm_chanest_vcvc_rxpath = digital.ofdm_chanest_vcvc((sync_word1), (sync_word2), 1, 0, 3, False)
self.digital_ofdm_carrier_allocator_cvc_txpath = digital.ofdm_carrier_allocator_cvc(fft_len, occupied_carriers, pilot_carriers, pilot_symbols, (sync_word1, sync_word2), packet_length_tag_key)
(self.digital_ofdm_carrier_allocator_cvc_txpath).set_min_output_buffer(16000)
self.digital_header_payload_demux_rxpath = digital.header_payload_demux(
3,
fft_len,
cp_len,
length_tag_key,
"",
True,
gr.sizeof_gr_complex,
"rx_time",
samp_rate,
(),
)
#self.digital_crc32_bb_txpath = digital.crc32_bb(False, packet_length_tag_key)
#self.digital_crc32_bb_rxpath = digital.crc32_bb(True, packet_length_tag_key)
self.digital_constellation_decoder_cb_1_rxpath = digital.constellation_decoder_cb(payload_mod.base())
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(header_mod.base())
self.digital_chunks_to_symbols_x_txpath = digital.chunks_to_symbols_bc((payload_mod.points()), 1)
self.digital_chunks_to_symbols_txpath = digital.chunks_to_symbols_bc((header_mod.points()), 1)
self.blocks_tagged_stream_mux_txpath = blocks.tagged_stream_mux(gr.sizeof_gr_complex*1, packet_length_tag_key, 0)
(self.blocks_tagged_stream_mux_txpath).set_min_output_buffer(16000)
self.blocks_tag_gate_txpath = blocks.tag_gate(gr.sizeof_gr_complex * 1, False)
self.blocks_repack_bits_bb_txpath = blocks.repack_bits_bb(8, payload_mod.bits_per_symbol(), packet_length_tag_key, False)
self.blocks_repack_bits_bb_rxpath = blocks.repack_bits_bb(payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True)
self.blocks_multiply_xx_rxpath = blocks.multiply_vcc(1)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc((.01, ))
self.blocks_delay_rxpath = blocks.delay(gr.sizeof_gr_complex*1, fft_len+fft_len/4)
self.analog_frequency_modulator_fc_rxpath = analog.frequency_modulator_fc(-2.0/fft_len)
self.analog_agc2_xx_0 = analog.agc2_cc(1e-1, 1e-2, 1.0, 1.0)
self.analog_agc2_xx_0.set_max_gain(65536)
##################################################
# Connections
##################################################
self.connect((self.digital_ofdm_sync_sc_cfb_rxpath, 0), (self.analog_frequency_modulator_fc_rxpath, 0))
self.connect((self.analog_agc2_xx_0, 0), (self.digital_ofdm_sync_sc_cfb_rxpath, 0))
self.connect((self.analog_agc2_xx_0, 0), (self.blocks_delay_rxpath, 0))
self.connect((self.digital_packet_headergenerator_bb_txpath, 0), (self.digital_chunks_to_symbols_txpath, 0))
self.connect((self.blocks_repack_bits_bb_txpath, 0), (self.digital_chunks_to_symbols_x_txpath, 0))
self.connect((self.digital_chunks_to_symbols_txpath, 0), (self.blocks_tagged_stream_mux_txpath, 0))
self.connect((self.digital_chunks_to_symbols_x_txpath, 0), (self.blocks_tagged_stream_mux_txpath, 1))
self.connect((self.digital_ofdm_cyclic_prefixer_txpath, 0), (self.blocks_tag_gate_txpath, 0))
self.connect((self.fft_vxx_txpath, 0), (self.digital_ofdm_cyclic_prefixer_txpath, 0))
self.connect((self.blocks_tagged_stream_mux_txpath, 0), (self.digital_ofdm_carrier_allocator_cvc_txpath, 0))
self.connect((self.digital_ofdm_carrier_allocator_cvc_txpath, 0), (self.fft_vxx_txpath, 0))
self.connect((self.digital_header_payload_demux_rxpath, 0), (self.fft_vxx_1_rxpath, 0))
self.connect((self.fft_vxx_1_rxpath, 0), (self.digital_ofdm_chanest_vcvc_rxpath, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_1_rxpath, 0), (self.digital_ofdm_serializer_vcc_header_rxpath, 0))
self.connect((self.digital_ofdm_chanest_vcvc_rxpath, 0), (self.digital_ofdm_frame_equalizer_vcvc_1_rxpath, 0))
self.connect((self.digital_header_payload_demux_rxpath, 1), (self.fft_vxx_2_rxpath, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_2_rxpath, 0), (self.digital_ofdm_serializer_vcc_payload_rxpath, 0))
self.connect((self.fft_vxx_2_rxpath, 0), (self.digital_ofdm_frame_equalizer_vcvc_2_rxpath, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload_rxpath, 0), (self.digital_constellation_decoder_cb_1_rxpath, 0))
self.connect((self.digital_constellation_decoder_cb_1_rxpath, 0), (self.blocks_repack_bits_bb_rxpath, 0))
self.connect((self.digital_ofdm_serializer_vcc_header_rxpath, 0), (self.digital_constellation_decoder_cb_0, 0))
self.connect((self.analog_frequency_modulator_fc_rxpath, 0), (self.blocks_multiply_xx_rxpath, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_rxpath, 1), (self.digital_header_payload_demux_rxpath, 1))
self.connect((self.blocks_multiply_xx_rxpath, 0), (self.digital_header_payload_demux_rxpath, 0))
self.connect((self.blocks_delay_rxpath, 0), (self.blocks_multiply_xx_rxpath, 1))
self.connect((self.digital_constellation_decoder_cb_0, 0), (self.digital_packet_headerparser_b_rxpath, 0))
self.connect((self, 1), (self.analog_agc2_xx_0, 0))
self.connect((self.blocks_tag_gate_txpath, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.iir_filter_xxx_1, 0), (self, 1))
'''
self.connect((self, 0), (self.digital_crc32_bb_txpath, 0))
self.connect((self.digital_crc32_bb_txpath, 0), (self.blocks_repack_bits_bb_txpath, 0))
self.connect((self.digital_crc32_bb_txpath, 0), (self.digital_packet_headergenerator_bb_txpath, 0))
'''
self.connect((self, 0), (self.blocks_repack_bits_bb_txpath, 0))
self.connect((self, 0), (self.digital_packet_headergenerator_bb_txpath, 0))
'''
self.connect((self.blocks_repack_bits_bb_rxpath, 0), (self.digital_crc32_bb_rxpath, 0))
self.connect((self.digital_crc32_bb_rxpath, 0), (self, 0))
'''
self.connect((self.blocks_repack_bits_bb_rxpath, 0), (self, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.iir_filter_xxx_1, 0))
##################################################
# Asynch Message Connections
##################################################
self.msg_connect(self.digital_packet_headerparser_b_rxpath, "header_data", self.digital_header_payload_demux_rxpath, "header_data")
def set_length_tag_key(self, length_tag_key):
self.length_tag_key = length_tag_key
self.set_header_formatter(
digital.packet_header_ofdm(self.occupied_carriers, 1,
self.length_tag_key))
def __init__(self):
gr.top_block.__init__(self, "OFDM Rx")
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((
1,
1,
1,
-1,
), )
self.pilot_carriers = pilot_carriers = ((
-21,
-7,
7,
21,
), )
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (
range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) +
range(8, 21) + range(22, 27), )
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [
0j, 0j, 0j, 0j, 0j, 0j, (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (1 + 0j), (-1 + 0j), 0j, (1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j),
(1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
0j, 0j, 0j, 0j, 0j
]
self.sync_word1 = sync_word1 = [
0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
0., 0., 0., 0., 0.
]
self.samp_rate = samp_rate = 5000000
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols, 1)
self.packet_len = packet_len = 96
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols)
##################################################
# Blocks
##################################################
self.nutaq_rtdex_source_0 = nutaq.rtdex_source(
"nutaq_carrier_perseus_0", gr.sizeof_short, 1, 3)
self.nutaq_rtdex_source_0.set_type(0)
self.nutaq_rtdex_source_0.set_packet_size(8192)
self.nutaq_rtdex_source_0.set_channels("1")
self.nutaq_radio420_tx_0_0 = nutaq.radio420_tx(
"nutaq_carrier_perseus_0", 1, 0)
self.nutaq_radio420_tx_0_0.set_default_enable(1)
self.nutaq_radio420_tx_0_0.set_default_tx_freq(2590000000)
self.nutaq_radio420_tx_0_0.set_default_reference(0)
self.nutaq_radio420_tx_0_0.set_default_datarate(samp_rate * 2)
self.nutaq_radio420_tx_0_0.set_default_calibrate(1)
self.nutaq_radio420_tx_0_0.set_default_band(1)
self.nutaq_radio420_tx_0_0.set_default_update_rate(1)
self.nutaq_radio420_tx_0_0.set_default_tx_vga1_gain(-10)
self.nutaq_radio420_tx_0_0.set_default_tx_vga2_gain(15)
self.nutaq_radio420_tx_0_0.set_default_tx_gain3(3)
self.nutaq_radio420_tx_0_0.set_default_tx_lpf_bandwidth(4)
self.nutaq_radio420_tx_0_0.set_default_ref_clk_ctrl(0)
self.nutaq_radio420_tx_0_0.set_default_rf_ctrl(0)
self.nutaq_radio420_tx_0_0.set_default_tx_gain_ctrl(0)
self.nutaq_radio420_tx_0_0.set_default_pll_cpld_ctrl(0)
self.nutaq_radio420_rx_0_0 = nutaq.radio420_rx(
"nutaq_carrier_perseus_0", 1, 1)
self.nutaq_radio420_rx_0_0.set_default_enable(1)
self.nutaq_radio420_rx_0_0.set_default_rx_freq(2490000000)
self.nutaq_radio420_rx_0_0.set_default_reference(0)
self.nutaq_radio420_rx_0_0.set_default_datarate(samp_rate * 2)
self.nutaq_radio420_rx_0_0.set_default_calibrate(1)
self.nutaq_radio420_rx_0_0.set_default_band(1)
self.nutaq_radio420_rx_0_0.set_default_update_rate(1)
self.nutaq_radio420_rx_0_0.set_default_rx_lna_gain(2)
self.nutaq_radio420_rx_0_0.set_default_rx_vga1_gain(2)
self.nutaq_radio420_rx_0_0.set_default_rx_gain2(20)
self.nutaq_radio420_rx_0_0.set_default_rx_gain3(8)
self.nutaq_radio420_rx_0_0.set_default_rx_rf_filter(2)
self.nutaq_radio420_rx_0_0.set_default_rx_lpf_bandwidth(4)
self.nutaq_radio420_rx_0_0.set_default_ref_clk_ctrl(0)
self.nutaq_radio420_rx_0_0.set_default_rf_ctrl(0)
self.nutaq_radio420_rx_0_0.set_default_rx_gain_ctrl(0)
self.nutaq_radio420_rx_0_0.set_default_pll_cpld_ctrl(0)
self.nutaq_custom_register_0_1 = nutaq.custom_register(
"nutaq_carrier_perseus_0", 6)
self.nutaq_custom_register_0_1.set_index(1)
self.nutaq_custom_register_0_1.set_default_value(6)
self.nutaq_custom_register_0_1.set_update_rate(1)
self.nutaq_custom_register_0_0 = nutaq.custom_register(
"nutaq_carrier_perseus_0", 5)
self.nutaq_custom_register_0_0.set_index(3)
self.nutaq_custom_register_0_0.set_update_rate(1)
self.nutaq_custom_register_0 = nutaq.custom_register(
"nutaq_carrier_perseus_0", 5)
self.nutaq_custom_register_0.set_index(4)
self.nutaq_custom_register_0.set_update_rate(1)
self.nutaq_carrier_perseus_0 = nutaq.carrier(
0, "nutaq_carrier_perseus_0", "192.168.0.101")
self.fft_vxx_1 = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_0 = fft.fft_vcc(fft_len, True, (()), True, 1)
self.digital_packet_headerparser_b_0 = digital.packet_headerparser_b(
header_formatter.base())
self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(
fft_len, fft_len / 4, False)
self.digital_ofdm_serializer_vcc_payload = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, packet_length_tag_key,
1, "", True)
self.digital_ofdm_serializer_vcc_header = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, "", 0, "", True)
self.digital_ofdm_frame_equalizer_vcvc_1 = digital.ofdm_frame_equalizer_vcvc(
payload_equalizer.base(), fft_len / 4, length_tag_key, True, 0)
self.digital_ofdm_frame_equalizer_vcvc_0 = digital.ofdm_frame_equalizer_vcvc(
header_equalizer.base(), fft_len / 4, length_tag_key, True, 1)
self.digital_ofdm_chanest_vcvc_0 = digital.ofdm_chanest_vcvc(
(sync_word1), (sync_word2), 1, 0, 3, False)
self.digital_header_payload_demux_0 = digital.header_payload_demux(
3,
fft_len,
fft_len / 4,
length_tag_key,
"",
True,
gr.sizeof_gr_complex,
"rx_time",
samp_rate,
(),
)
self.digital_crc32_bb_0 = digital.crc32_bb(True, packet_length_tag_key,
True)
self.digital_constellation_decoder_cb_1 = digital.constellation_decoder_cb(
payload_mod.base())
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(
header_mod.base())
self.blocks_tag_debug_1 = blocks.tag_debug(gr.sizeof_char * 1,
"Rx Bytes", "packet_num")
self.blocks_tag_debug_1.set_display(True)
self.blocks_short_to_float_0_0 = blocks.short_to_float(1, 2047)
self.blocks_short_to_float_0 = blocks.short_to_float(1, 2047)
self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(
payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True,
gr.GR_LSB_FIRST)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex * 1,
fft_len + fft_len / 4)
self.blocks_deinterleave_0 = blocks.deinterleave(
gr.sizeof_short * 1, 1)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(
-2.0 / fft_len)
self.analog_const_source_x_0 = analog.sig_source_i(
0, analog.GR_CONST_WAVE, 0, 0, 1)
##################################################
# Connections
##################################################
self.msg_connect((self.digital_packet_headerparser_b_0, 'header_data'),
(self.digital_header_payload_demux_0, 'header_data'))
self.connect((self.analog_const_source_x_0, 0),
(self.nutaq_custom_register_0_0, 0))
self.connect((self.analog_frequency_modulator_fc_0, 0),
(self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_deinterleave_0, 0),
(self.blocks_short_to_float_0, 0))
self.connect((self.blocks_deinterleave_0, 1),
(self.blocks_short_to_float_0_0, 0))
self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_float_to_complex_0, 0),
(self.blocks_delay_0, 0))
self.connect((self.blocks_float_to_complex_0, 0),
(self.digital_ofdm_sync_sc_cfb_0, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.digital_header_payload_demux_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0),
(self.digital_crc32_bb_0, 0))
self.connect((self.blocks_short_to_float_0, 0),
(self.blocks_float_to_complex_0, 0))
self.connect((self.blocks_short_to_float_0_0, 0),
(self.blocks_float_to_complex_0, 1))
self.connect((self.digital_constellation_decoder_cb_0, 0),
(self.digital_packet_headerparser_b_0, 0))
self.connect((self.digital_constellation_decoder_cb_1, 0),
(self.blocks_repack_bits_bb_0, 0))
self.connect((self.digital_crc32_bb_0, 0),
(self.blocks_tag_debug_1, 0))
self.connect((self.digital_header_payload_demux_0, 0),
(self.fft_vxx_0, 0))
self.connect((self.digital_header_payload_demux_0, 1),
(self.fft_vxx_1, 0))
self.connect((self.digital_ofdm_chanest_vcvc_0, 0),
(self.digital_ofdm_frame_equalizer_vcvc_0, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_0, 0),
(self.digital_ofdm_serializer_vcc_header, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_1, 0),
(self.digital_ofdm_serializer_vcc_payload, 0))
self.connect((self.digital_ofdm_serializer_vcc_header, 0),
(self.digital_constellation_decoder_cb_0, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload, 0),
(self.digital_constellation_decoder_cb_1, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 0),
(self.analog_frequency_modulator_fc_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 1),
(self.digital_header_payload_demux_0, 1))
self.connect((self.fft_vxx_0, 0),
(self.digital_ofdm_chanest_vcvc_0, 0))
self.connect((self.fft_vxx_1, 0),
(self.digital_ofdm_frame_equalizer_vcvc_1, 0))
self.connect((self.nutaq_rtdex_source_0, 0),
(self.blocks_deinterleave_0, 0))
def __init__(self): grc_wxgui.top_block_gui.__init__(self, title="OFDM Rx") _icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png" self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY)) ################################################## # Variables ################################################## self.occupied_carriers = occupied_carriers = (range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),) self.length_tag_name = length_tag_name = "frame_len" self.sync_word2 = sync_word2 = (0, 0, 0, 0, 0, 1, 1, -1.0, -1, 1.0, 1, 1.0, -1, -1.0, -1, 1.0, 1, -1.0, 1, 1.0, 1, -1.0, -1, -1.0, -1, 1.0, -1, 1.0, -1, 1.0, 1, -1.0, 0, 1.0, 1, -1.0, 1, 1.0, -1, -1.0, 1, -1.0, -1, -1.0, 1, 1.0, 1, -1.0, 1, 1.0, -1, 1.0, -1, -1.0, -1, 1.0, 1, -1.0, 0, 0, 0, 0, 0, 0) self.sync_word1 = sync_word1 = (0, 0, 0, 0, 0, 0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 0, 0, 0, 0, 0) self.samp_rate = samp_rate = 3200000 self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),) self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),) self.payload_mod = payload_mod = digital.constellation_qpsk() self.header_mod = header_mod = digital.constellation_bpsk() self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, 1, length_tag_name) self.fft_len = fft_len = 64 ################################################## # Blocks ################################################## self.gr_delay_0 = gr.delay(gr.sizeof_gr_complex*1, fft_len+fft_len/4) self.fft_vxx_0_0 = fft.fft_vcc(fft_len, True, (), True, 1) self.fft_vxx_0 = fft.fft_vcc(fft_len, True, (), True, 1) self.digital_packet_headerparser_b_0 = digital.packet_headerparser_b(header_formatter.formatter()) self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(fft_len, fft_len/4, False) self.digital_ofdm_serializer_vcc_1 = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, "length_tag_key", "", 1, "", True) self.digital_ofdm_serializer_vcc_0 = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_name, "", 0, "", True) self.digital_ofdm_frame_equalizer_vcvc_0_0 = digital.ofdm_frame_equalizer_vcvc(digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols).base(), fft_len/4, length_tag_name, True, 0) self.digital_ofdm_frame_equalizer_vcvc_0 = digital.ofdm_frame_equalizer_vcvc(digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 2).base(), fft_len/4, "length_tag_key", False, 0) self.digital_ofdm_chanest_vcvc_0 = digital.ofdm_chanest_vcvc((sync_word1), (sync_word2), 2, 0, -1, False) self.digital_header_payload_demux_0 = digital.header_payload_demux(3, fft_len, fft_len/4, length_tag_name, "", True, gr.sizeof_gr_complex) self.digital_constellation_decoder_cb_0_0 = digital.constellation_decoder_cb(header_mod.base()) self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(payload_mod.base()) self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate) self.blocks_tag_debug_0 = blocks.tag_debug(gr.sizeof_char*1, "Rx Packets") self.blocks_multiply_xx_0 = blocks.multiply_vcc(1) self.analog_noise_source_x_0 = analog.noise_source_c(analog.GR_GAUSSIAN, 1, 0) self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(-2.0/fft_len) ################################################## # Connections ################################################## self.connect((self.digital_ofdm_frame_equalizer_vcvc_0_0, 0), (self.digital_ofdm_serializer_vcc_0, 0)) self.connect((self.digital_header_payload_demux_0, 0), (self.fft_vxx_0, 0)) self.connect((self.fft_vxx_0, 0), (self.digital_ofdm_chanest_vcvc_0, 0)) self.connect((self.digital_ofdm_chanest_vcvc_0, 0), (self.digital_ofdm_frame_equalizer_vcvc_0_0, 0)) self.connect((self.digital_constellation_decoder_cb_0_0, 0), (self.digital_packet_headerparser_b_0, 0)) self.connect((self.digital_ofdm_serializer_vcc_0, 0), (self.digital_constellation_decoder_cb_0_0, 0)) self.connect((self.digital_constellation_decoder_cb_0, 0), (self.blocks_tag_debug_0, 0)) self.connect((self.fft_vxx_0_0, 0), (self.digital_ofdm_frame_equalizer_vcvc_0, 0)) self.connect((self.digital_ofdm_frame_equalizer_vcvc_0, 0), (self.digital_ofdm_serializer_vcc_1, 0)) self.connect((self.digital_header_payload_demux_0, 1), (self.fft_vxx_0_0, 0)) self.connect((self.digital_ofdm_serializer_vcc_1, 0), (self.digital_constellation_decoder_cb_0, 0)) self.connect((self.blocks_throttle_0, 0), (self.digital_ofdm_sync_sc_cfb_0, 0)) self.connect((self.blocks_throttle_0, 0), (self.gr_delay_0, 0)) self.connect((self.analog_noise_source_x_0, 0), (self.blocks_throttle_0, 0)) self.connect((self.analog_frequency_modulator_fc_0, 0), (self.blocks_multiply_xx_0, 0)) self.connect((self.digital_ofdm_sync_sc_cfb_0, 0), (self.analog_frequency_modulator_fc_0, 0)) self.connect((self.gr_delay_0, 0), (self.blocks_multiply_xx_0, 1)) self.connect((self.digital_ofdm_sync_sc_cfb_0, 1), (self.digital_header_payload_demux_0, 1)) self.connect((self.blocks_multiply_xx_0, 0), (self.digital_header_payload_demux_0, 0)) ################################################## # Asynch Message Connections ################################################## self.msg_connect(self.digital_packet_headerparser_b_0, "header_data", self.digital_header_payload_demux_0, "header_data")
def __init__(self,
pilot_symbols=((
1,
1,
1,
-1,
), ),
header_mod=digital.constellation_bpsk(),
payload_mod=digital.constellation_qpsk(),
sync_word2=[
0, 0, 0, 0, 0, 0, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, -1,
1, 1, 1, 1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, -1, 0, 1,
-1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, -1,
-1, 1, -1, 1, -1, -1, -1, -1, 0, 0, 0, 0, 0
],
sync_word1=[
0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356,
0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0.,
0., 0., 0.
],
fft_len=64,
packet_len=1,
occupied_carriers=(range(-26, -21) + range(-20, -7) +
range(-6, 0) + range(1, 7) + range(8, 21) +
range(22, 27), ),
pilot_carriers=((
-21,
-7,
7,
21,
), ),
samp_rate=500000):
gr.hier_block2.__init__(
self,
"IA RX Phase 1",
gr.io_signature(1, 1, gr.sizeof_gr_complex * 1),
gr.io_signaturev(3, 3, [
gr.sizeof_gr_complex * fft_len, gr.sizeof_gr_complex * fft_len,
gr.sizeof_char * 1
]),
)
##################################################
# Parameters
##################################################
self.pilot_symbols = pilot_symbols
self.header_mod = header_mod
self.payload_mod = payload_mod
self.sync_word2 = sync_word2
self.sync_word1 = sync_word1
self.fft_len = fft_len
self.packet_len = packet_len
self.occupied_carriers = occupied_carriers
self.pilot_carriers = pilot_carriers
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.length_tag_key = length_tag_key = "frame_len"
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols, 0, 1)
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols, 0, 1)
##################################################
# Blocks
##################################################
self.projectGT_ofdm_chanest1_vcvc_0 = projectGT.ofdm_chanest1_vcvc(
(sync_word1, sync_word2, sync_word2, sync_word2, sync_word2,
sync_word2), 1, fft_len, 0, 3, False)
self.projectGT_crc32_1_bb_0 = projectGT.crc32_1_bb(True, "packet_len")
self.projectGT_chnl_id_bvc_0 = projectGT.chnl_id_bvc(
fft_len, "packet_len")
self.fft_vxx_1 = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_0 = fft.fft_vcc(fft_len, True, (()), True, 1)
self.digital_packet_headerparser_b_0 = digital.packet_headerparser_b(
header_formatter.base())
self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(
fft_len, fft_len / 4, False)
self.digital_ofdm_serializer_vcc_payload = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, packet_length_tag_key,
1, "", True)
self.digital_ofdm_serializer_vcc_header = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, "", 0, "", True)
self.digital_ofdm_frame_equalizer_vcvc_1 = digital.ofdm_frame_equalizer_vcvc(
payload_equalizer.base(), fft_len / 4, length_tag_key, True, 0)
self.digital_ofdm_frame_equalizer_vcvc_0 = digital.ofdm_frame_equalizer_vcvc(
header_equalizer.base(), fft_len / 4, length_tag_key, True, 1)
self.digital_header_payload_demux_0 = digital.header_payload_demux(
7,
fft_len,
fft_len / 4,
length_tag_key,
"",
True,
gr.sizeof_gr_complex,
"rx_time",
samp_rate,
(),
)
self.digital_constellation_decoder_cb_1 = digital.constellation_decoder_cb(
payload_mod.base())
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(
header_mod.base())
self.blocks_tag_debug_0 = blocks.tag_debug(gr.sizeof_char * 1, "RX",
"")
self.blocks_tag_debug_0.set_display(False)
self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(
payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_gr_complex *
fft_len)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex * 1,
fft_len + fft_len / 4)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(
-2.0 / fft_len)
##################################################
# Connections
##################################################
self.msg_connect(self.digital_packet_headerparser_b_0, "header_data",
self.digital_header_payload_demux_0, "header_data")
self.connect((self.analog_frequency_modulator_fc_0, 0),
(self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_multiply_xx_0, 0),
(self.digital_header_payload_demux_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0),
(self.blocks_tag_debug_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0),
(self.projectGT_chnl_id_bvc_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0),
(self.projectGT_crc32_1_bb_0, 0))
self.connect((self.digital_constellation_decoder_cb_0, 0),
(self.digital_packet_headerparser_b_0, 0))
self.connect((self.digital_constellation_decoder_cb_1, 0),
(self.blocks_repack_bits_bb_0, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_0, 0),
(self.digital_ofdm_serializer_vcc_header, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_1, 0),
(self.digital_ofdm_serializer_vcc_payload, 0))
self.connect((self.digital_ofdm_serializer_vcc_header, 0),
(self.digital_constellation_decoder_cb_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 0),
(self.analog_frequency_modulator_fc_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 1),
(self.digital_header_payload_demux_0, 1))
self.connect((self.fft_vxx_0, 0),
(self.projectGT_ofdm_chanest1_vcvc_0, 0))
self.connect((self.fft_vxx_1, 0),
(self.digital_ofdm_frame_equalizer_vcvc_1, 0))
self.connect((self, 0), (self.blocks_delay_0, 0))
self.connect((self, 0), (self.digital_ofdm_sync_sc_cfb_0, 0))
self.connect((self.projectGT_chnl_id_bvc_0, 1), (self, 0))
self.connect((self.projectGT_chnl_id_bvc_0, 0), (self, 1))
self.connect((self.projectGT_crc32_1_bb_0, 0), (self, 2))
self.connect((self.projectGT_ofdm_chanest1_vcvc_0, 1),
(self.blocks_null_sink_0, 0))
self.connect((self.projectGT_ofdm_chanest1_vcvc_0, 0),
(self.digital_ofdm_frame_equalizer_vcvc_0, 0))
self.connect((self.digital_header_payload_demux_0, 0),
(self.fft_vxx_0, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload, 0),
(self.digital_constellation_decoder_cb_1, 0))
self.connect((self.digital_header_payload_demux_0, 1),
(self.fft_vxx_1, 0))
def __init__(self):
gr.top_block.__init__(self, "OFDM Transceiver")
Qt.QWidget.__init__(self)
self.setWindowTitle("OFDM Transceiver")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "ofdm_transceiver")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
self._lock = threading.RLock()
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.waterfall_min = waterfall_min = -140
self.waterfall_max = waterfall_max = -20
self.tx_gain = tx_gain = 0.01
self.th = th = 10**(-40/10)
self.sync_word2 = sync_word2 = [0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, 0j, 0j, 0j, 0j]
self.sync_word1 = sync_word1 = [0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]
self.size = size = 256
self.samp_rate = samp_rate = 2e6
self.period = period = 10
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)
self.nsamples = nsamples = 1000
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)
self.center_freq = center_freq = 2.412e9
##################################################
# Blocks
##################################################
self.tab = Qt.QTabWidget()
self.tab_widget_0 = Qt.QWidget()
self.tab_layout_0 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.tab_widget_0)
self.tab_grid_layout_0 = Qt.QGridLayout()
self.tab_layout_0.addLayout(self.tab_grid_layout_0)
self.tab.addTab(self.tab_widget_0, "Spectrum")
self.tab_widget_1 = Qt.QWidget()
self.tab_layout_1 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.tab_widget_1)
self.tab_grid_layout_1 = Qt.QGridLayout()
self.tab_layout_1.addLayout(self.tab_grid_layout_1)
self.tab.addTab(self.tab_widget_1, "Settings")
self.top_layout.addWidget(self.tab)
self._waterfall_min_range = Range(-200, -50, 1, -140, 200)
self._waterfall_min_win = RangeWidget(self._waterfall_min_range, self.set_waterfall_min, "Waterfall Min", "counter_slider", float)
self.tab_layout_1.addWidget(self._waterfall_min_win)
self._waterfall_max_range = Range(-50, 0, 1, -20, 200)
self._waterfall_max_win = RangeWidget(self._waterfall_max_range, self.set_waterfall_max, "Waterfall Max", "counter_slider", float)
self.tab_layout_1.addWidget(self._waterfall_max_win)
self._samp_rate_options = [1.5e6, 2e6, 4e6, 5e6, 10e6, 20e6 ]
self._samp_rate_labels = ["1.5 MHz", "2 MHz", "4 MHz", "5 MHz", "10 MHz", "20 MHz"]
self._samp_rate_tool_bar = Qt.QToolBar(self)
self._samp_rate_tool_bar.addWidget(Qt.QLabel("Sample Rate [MHz]"+": "))
self._samp_rate_combo_box = Qt.QComboBox()
self._samp_rate_tool_bar.addWidget(self._samp_rate_combo_box)
for label in self._samp_rate_labels: self._samp_rate_combo_box.addItem(label)
self._samp_rate_callback = lambda i: Qt.QMetaObject.invokeMethod(self._samp_rate_combo_box, "setCurrentIndex", Qt.Q_ARG("int", self._samp_rate_options.index(i)))
self._samp_rate_callback(self.samp_rate)
self._samp_rate_combo_box.currentIndexChanged.connect(
lambda i: self.set_samp_rate(self._samp_rate_options[i]))
self.tab_layout_0.addWidget(self._samp_rate_tool_bar)
self._center_freq_options = [868e6, 2.412e9, 2.417e9, 2.422e9, 2.427e9, 2.432e9, 2.437e9, 2.442e9, 2.447e9, 2.452e9, 2.457e9, 2.462e9, 2.467e9, 2.472e9]
self._center_freq_labels = ["868M", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13"]
self._center_freq_tool_bar = Qt.QToolBar(self)
self._center_freq_tool_bar.addWidget(Qt.QLabel("Channel"+": "))
self._center_freq_combo_box = Qt.QComboBox()
self._center_freq_tool_bar.addWidget(self._center_freq_combo_box)
for label in self._center_freq_labels: self._center_freq_combo_box.addItem(label)
self._center_freq_callback = lambda i: Qt.QMetaObject.invokeMethod(self._center_freq_combo_box, "setCurrentIndex", Qt.Q_ARG("int", self._center_freq_options.index(i)))
self._center_freq_callback(self.center_freq)
self._center_freq_combo_box.currentIndexChanged.connect(
lambda i: self.set_center_freq(self._center_freq_options[i]))
self.top_layout.addWidget(self._center_freq_tool_bar)
self._tx_gain_range = Range(0, 1, 0.001, 0.01, 200)
self._tx_gain_win = RangeWidget(self._tx_gain_range, self.set_tx_gain, "TX Gain", "counter_slider", float)
self.top_layout.addWidget(self._tx_gain_win)
self._th_range = Range(10**(-80/10), 10**(-10/10), 0.0001, 10**(-40/10), 200)
self._th_win = RangeWidget(self._th_range, self.set_th, "Threshold", "counter_slider", float)
self.tab_layout_0.addWidget(self._th_win)
self.qtgui_waterfall_sink_x_0_0 = qtgui.waterfall_sink_c(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
center_freq, #fc
samp_rate, #bw
"", #name
1 #number of inputs
)
self.qtgui_waterfall_sink_x_0_0.set_update_time(0.01)
self.qtgui_waterfall_sink_x_0_0.enable_grid(False)
if not True:
self.qtgui_waterfall_sink_x_0_0.disable_legend()
if complex == type(float()):
self.qtgui_waterfall_sink_x_0_0.set_plot_pos_half(not True)
labels = ["", "", "", "", "",
"", "", "", "", ""]
colors = [5, 0, 0, 0, 0,
0, 0, 0, 0, 0]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_waterfall_sink_x_0_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_waterfall_sink_x_0_0.set_line_label(i, labels[i])
self.qtgui_waterfall_sink_x_0_0.set_color_map(i, colors[i])
self.qtgui_waterfall_sink_x_0_0.set_line_alpha(i, alphas[i])
self.qtgui_waterfall_sink_x_0_0.set_intensity_range(waterfall_min, waterfall_max)
self._qtgui_waterfall_sink_x_0_0_win = sip.wrapinstance(self.qtgui_waterfall_sink_x_0_0.pyqwidget(), Qt.QWidget)
self.tab_layout_0.addWidget(self._qtgui_waterfall_sink_x_0_0_win)
self._period_range = Range(1, 10000, 1, 10, 200)
self._period_win = RangeWidget(self._period_range, self.set_period, "Period", "counter_slider", float)
self.tab_layout_1.addWidget(self._period_win)
self.osmosdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + "bladerf=0" )
self.osmosdr_source_0.set_sample_rate(samp_rate)
self.osmosdr_source_0.set_center_freq(center_freq, 0)
self.osmosdr_source_0.set_freq_corr(0, 0)
self.osmosdr_source_0.set_dc_offset_mode(1, 0)
self.osmosdr_source_0.set_iq_balance_mode(1, 0)
self.osmosdr_source_0.set_gain_mode(False, 0)
self.osmosdr_source_0.set_gain(10, 0)
self.osmosdr_source_0.set_if_gain(20, 0)
self.osmosdr_source_0.set_bb_gain(20, 0)
self.osmosdr_source_0.set_antenna("", 0)
self.osmosdr_source_0.set_bandwidth(samp_rate, 0)
self.digital_ofdm_rx_0 = digital.ofdm_rx(
fft_len=64, cp_len=fft_len/4,
frame_length_tag_key='frame_'+packet_length_tag_key,
packet_length_tag_key=packet_length_tag_key,
occupied_carriers=occupied_carriers,
pilot_carriers=pilot_carriers,
pilot_symbols=pilot_symbols,
sync_word1=sync_word1,
sync_word2=sync_word2,
bps_header=1,
bps_payload=1,
debug_log=False,
scramble_bits=False
)
self.dc_blocker_xx_0 = filter.dc_blocker_cc(128, True)
self.blocks_tagged_stream_to_pdu_0 = blocks.tagged_stream_to_pdu(blocks.byte_t, packet_length_tag_key)
self.blocks_message_debug_0 = blocks.message_debug()
##################################################
# Connections
##################################################
self.msg_connect((self.blocks_tagged_stream_to_pdu_0, 'pdus'), (self.blocks_message_debug_0, 'print_pdu'))
self.connect((self.dc_blocker_xx_0, 0), (self.digital_ofdm_rx_0, 0))
self.connect((self.dc_blocker_xx_0, 0), (self.qtgui_waterfall_sink_x_0_0, 0))
self.connect((self.digital_ofdm_rx_0, 0), (self.blocks_tagged_stream_to_pdu_0, 0))
self.connect((self.osmosdr_source_0, 0), (self.dc_blocker_xx_0, 0))
def __init__(self, fft_len=_def_fft_len, cp_len=_def_cp_len,
packet_length_tag_key=_def_packet_length_tag_key,
occupied_carriers=_def_occupied_carriers,
pilot_carriers=_def_pilot_carriers,
pilot_symbols=_def_pilot_symbols,
bps_header=1,
bps_payload=1,
sync_word1=None,
sync_word2=None,
rolloff=0,
debug_log=False,
scramble_bits=False
):
gr.hier_block2.__init__(self, "ofdm_tx",
gr.io_signature(1, 1, gr.sizeof_char),
gr.io_signature(1, 1, gr.sizeof_gr_complex))
### Param init / sanity check ########################################
self.fft_len = fft_len
self.cp_len = cp_len
self.packet_length_tag_key = packet_length_tag_key
self.occupied_carriers = occupied_carriers
self.pilot_carriers = pilot_carriers
self.pilot_symbols = pilot_symbols
self.bps_header = bps_header
self.bps_payload = bps_payload
self.sync_word1 = sync_word1
if sync_word1 is None:
self.sync_word1 = _make_sync_word1(fft_len, occupied_carriers, pilot_carriers)
else:
if len(sync_word1) != self.fft_len:
raise ValueError("Length of sync sequence(s) must be FFT length.")
self.sync_words = [self.sync_word1,]
if sync_word2 is None:
self.sync_word2 = _make_sync_word2(fft_len, occupied_carriers, pilot_carriers)
else:
self.sync_word2 = sync_word2
if len(self.sync_word2):
if len(self.sync_word2) != fft_len:
raise ValueError("Length of sync sequence(s) must be FFT length.")
self.sync_word2 = list(self.sync_word2)
self.sync_words.append(self.sync_word2)
if scramble_bits:
self.scramble_seed = 0x7f
else:
self.scramble_seed = 0x00 # We deactivate the scrambler by init'ing it with zeros
### Header modulation ################################################
crc = digital.crc32_bb(False, self.packet_length_tag_key)
header_constellation = _get_constellation(bps_header)
header_mod = digital.chunks_to_symbols_bc(header_constellation.points())
formatter_object = digital.packet_header_ofdm(
occupied_carriers=occupied_carriers, n_syms=1,
bits_per_header_sym=self.bps_header,
bits_per_payload_sym=self.bps_payload,
scramble_header=scramble_bits
)
header_gen = digital.packet_headergenerator_bb(formatter_object.base(), self.packet_length_tag_key)
header_payload_mux = blocks.tagged_stream_mux(
itemsize=gr.sizeof_gr_complex*1,
lengthtagname=self.packet_length_tag_key,
tag_preserve_head_pos=1 # Head tags on the payload stream stay on the head
)
self.connect(
self,
crc,
header_gen,
header_mod,
(header_payload_mux, 0)
)
if debug_log:
self.connect(header_gen, blocks.file_sink(1, 'tx-hdr.dat'))
### Payload modulation ###############################################
payload_constellation = _get_constellation(bps_payload)
payload_mod = digital.chunks_to_symbols_bc(payload_constellation.points())
payload_scrambler = digital.additive_scrambler_bb(
0x8a,
self.scramble_seed,
7,
0, # Don't reset after fixed length (let the reset tag do that)
bits_per_byte=8, # This is before unpacking
reset_tag_key=self.packet_length_tag_key
)
payload_unpack = blocks.repack_bits_bb(
8, # Unpack 8 bits per byte
bps_payload,
self.packet_length_tag_key
)
self.connect(
crc,
payload_scrambler,
payload_unpack,
payload_mod,
(header_payload_mux, 1)
)
### Create OFDM frame ################################################
allocator = digital.ofdm_carrier_allocator_cvc(
self.fft_len,
occupied_carriers=self.occupied_carriers,
pilot_carriers=self.pilot_carriers,
pilot_symbols=self.pilot_symbols,
sync_words=self.sync_words,
len_tag_key=self.packet_length_tag_key
)
ffter = fft.fft_vcc(
self.fft_len,
False, # Inverse FFT
(), # No window
True # Shift
)
cyclic_prefixer = mofdm.ofdm_cyclic_prefixer(
self.fft_len,
self.fft_len+self.cp_len,
rolloff,
self.packet_length_tag_key
)
self.connect(header_payload_mux, allocator, ffter, cyclic_prefixer, self)
if debug_log:
self.connect(allocator, blocks.file_sink(gr.sizeof_gr_complex * fft_len, 'tx-post-allocator.dat'))
self.connect(cyclic_prefixer, blocks.file_sink(gr.sizeof_gr_complex, 'tx-signal.dat'))
def set_length_tag_name(self, length_tag_name):
self.length_tag_name = length_tag_name
self.set_header_formatter(digital.packet_header_ofdm(self.occupied_carriers, 1, self.length_tag_name))
def __init__(self,
input_port_num="55555",
output_port_num="55556",
rx_bw=1e6,
rx_freq=2.2e9,
rx_gain=0.8,
serial_num="31C9237",
tx_bw=1e6,
tx_freq=2.2e9,
tx_gain=0.8):
gr.top_block.__init__(self, "tranceiver_ofdm_usrp_RS")
##################################################
# Parameters
##################################################
self.input_port_num = input_port_num
self.output_port_num = output_port_num
self.rx_bw = rx_bw
self.rx_freq = rx_freq
self.rx_gain = rx_gain
self.serial_num = serial_num
self.tx_bw = tx_bw
self.tx_freq = tx_freq
self.tx_gain = tx_gain
##################################################
# Variables
##################################################
self.packet_len = packet_len = 200
self.pilot_symbols = pilot_symbols = ((
1,
1,
1,
-1,
), )
self.pilot_carriers = pilot_carriers = ((
-21,
-7,
7,
21,
), )
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (
list(range(-26, -21)) + list(range(-20, -7)) + list(range(-6, 0)) +
list(range(1, 7)) + list(range(8, 21)) + list(range(22, 27)), )
self.n = n = 255
self.length_tag_key = length_tag_key = "frame_len"
self.k = k = packet_len + 4
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.blocks_RS = blocks_RS = 1
self.t = t = int((n * blocks_RS - k) / 2)
self.sync_word2 = sync_word2 = [
0j, 0j, 0j, 0j, 0j, 0j, (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (-1 + 0j), (1 + 0j), (-1 + 0j), 0j, (1 + 0j), (-1 + 0j),
(1 + 0j), (1 + 0j), (1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j),
(1 + 0j), (-1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (1 + 0j),
(-1 + 0j), (1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j), (-1 + 0j),
0j, 0j, 0j, 0j, 0j
]
self.sync_word1 = sync_word1 = [
0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0.,
1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0.,
-1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
-1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0.,
0., 0., 0., 0., 0.
]
self.samp_rate = samp_rate = 10000
self.rolloff = rolloff = 0
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols, 1)
self.out_buf_size = out_buf_size = 0
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers,
pilot_symbols)
self.hdr_format = hdr_format = digital.header_format_ofdm(
occupied_carriers,
1,
length_tag_key,
)
##################################################
# Blocks
##################################################
self.zeromq_sub_source_0 = zeromq.sub_source(
gr.sizeof_char, 1, "tcp://127.0.0.1:" + input_port_num, 100, False,
-1)
self.zeromq_pub_sink_0 = zeromq.pub_sink(gr.sizeof_char, 1,
"tcp://127.0.0.1:55556", 100,
False, -1)
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
args='',
channels=list(range(0, 1)),
),
)
self.uhd_usrp_source_0.set_center_freq(rx_freq, 0)
self.uhd_usrp_source_0.set_normalized_gain(rx_gain, 0)
self.uhd_usrp_source_0.set_antenna('RX2', 0)
self.uhd_usrp_source_0.set_samp_rate(rx_bw)
self.uhd_usrp_source_0.set_time_now(uhd.time_spec(time.time()),
uhd.ALL_MBOARDS)
self.uhd_usrp_sink_0 = uhd.usrp_sink(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
args='',
channels=list(range(0, 1)),
),
packet_length_tag_key,
)
self.uhd_usrp_sink_0.set_center_freq(tx_freq, 0)
self.uhd_usrp_sink_0.set_normalized_gain(tx_gain, 0)
self.uhd_usrp_sink_0.set_antenna('TX/RX', 0)
self.uhd_usrp_sink_0.set_samp_rate(tx_bw)
self.uhd_usrp_sink_0.set_time_now(uhd.time_spec(time.time()),
uhd.ALL_MBOARDS)
self.foo_packet_pad2_0 = foo.packet_pad2(False, False, 0.001, 100,
1000)
self.fft_vxx_1 = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_0_0 = fft.fft_vcc(fft_len, False, (), True, 1)
self.fft_vxx_0 = fft.fft_vcc(fft_len, True, (), True, 1)
self.dtv_dvbt_reed_solomon_enc_0 = dtv.dvbt_reed_solomon_enc(
2, 8, 0x11d, n, k, t, 0, blocks_RS)
self.dtv_dvbt_reed_solomon_dec_0 = dtv.dvbt_reed_solomon_dec(
2, 8, 0x11d, n, k, t, 0, 1)
self.digital_protocol_formatter_bb_0 = digital.protocol_formatter_bb(
hdr_format, packet_length_tag_key)
self.digital_packet_headerparser_b_0 = digital.packet_headerparser_b(
header_formatter.base())
self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(
fft_len, fft_len // 4, False, 0.9)
self.digital_ofdm_serializer_vcc_payload = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, packet_length_tag_key,
1, '', True)
self.digital_ofdm_serializer_vcc_header = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, '', 0, '', True)
self.digital_ofdm_frame_equalizer_vcvc_1 = digital.ofdm_frame_equalizer_vcvc(
payload_equalizer.base(), fft_len // 4, length_tag_key, True, 0)
self.digital_ofdm_frame_equalizer_vcvc_0 = digital.ofdm_frame_equalizer_vcvc(
header_equalizer.base(), fft_len // 4, length_tag_key, True, 1)
self.digital_ofdm_cyclic_prefixer_0 = digital.ofdm_cyclic_prefixer(
fft_len, fft_len + fft_len // 4, rolloff, packet_length_tag_key)
self.digital_ofdm_chanest_vcvc_0 = digital.ofdm_chanest_vcvc(
sync_word1, sync_word2, 1, 0, 3, False)
self.digital_ofdm_carrier_allocator_cvc_0 = digital.ofdm_carrier_allocator_cvc(
fft_len, occupied_carriers, pilot_carriers, pilot_symbols,
(sync_word1, sync_word2), packet_length_tag_key, True)
self.digital_header_payload_demux_0 = digital.header_payload_demux(
3, fft_len, fft_len // 4, length_tag_key, "", True,
gr.sizeof_gr_complex, "rx_time", samp_rate, (), 0)
self.digital_crc32_bb_0_0 = digital.crc32_bb(False,
packet_length_tag_key,
True)
self.digital_crc32_bb_0 = digital.crc32_bb(True, packet_length_tag_key,
True)
self.digital_constellation_decoder_cb_1 = digital.constellation_decoder_cb(
payload_mod.base())
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(
header_mod.base())
self.digital_chunks_to_symbols_xx_0_0 = digital.chunks_to_symbols_bc(
payload_mod.points(), 1)
self.digital_chunks_to_symbols_xx_0 = digital.chunks_to_symbols_bc(
header_mod.points(), 1)
self.blocks_vector_to_stream_0_0 = blocks.vector_to_stream(
gr.sizeof_char * 1, k)
self.blocks_vector_to_stream_0 = blocks.vector_to_stream(
gr.sizeof_char * 1, n)
self.blocks_tagged_stream_mux_0 = blocks.tagged_stream_mux(
gr.sizeof_gr_complex * 1, packet_length_tag_key, 0)
self.blocks_tagged_stream_multiply_length_0_0 = blocks.tagged_stream_multiply_length(
gr.sizeof_char * 1, packet_length_tag_key, k / n)
self.blocks_tagged_stream_multiply_length_0 = blocks.tagged_stream_multiply_length(
gr.sizeof_char * 1, packet_length_tag_key, n / k)
self.blocks_stream_to_vector_1 = blocks.stream_to_vector(
gr.sizeof_char * 1, k)
self.blocks_stream_to_vector_0 = blocks.stream_to_vector(
gr.sizeof_char * 1, n)
self.blocks_stream_to_tagged_stream_0_0_0 = blocks.stream_to_tagged_stream(
gr.sizeof_char, 1, k, packet_length_tag_key)
self.blocks_stream_to_tagged_stream_0 = blocks.stream_to_tagged_stream(
gr.sizeof_char, 1, packet_len, packet_length_tag_key)
self.blocks_repack_bits_bb_0_1 = blocks.repack_bits_bb(
8, payload_mod.bits_per_symbol(), packet_length_tag_key, False,
gr.GR_LSB_FIRST)
self.blocks_repack_bits_bb_0_0 = blocks.repack_bits_bb(
8, 1, packet_length_tag_key, False, gr.GR_LSB_FIRST)
self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(
payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True,
gr.GR_LSB_FIRST)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_cc(0.05)
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex * 1,
fft_len + fft_len // 4)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(
-2.0 / fft_len)
##################################################
# Connections
##################################################
self.msg_connect((self.digital_packet_headerparser_b_0, 'header_data'),
(self.digital_header_payload_demux_0, 'header_data'))
self.connect((self.analog_frequency_modulator_fc_0, 0),
(self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.foo_packet_pad2_0, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.digital_header_payload_demux_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0),
(self.blocks_stream_to_vector_0, 0))
self.connect((self.blocks_repack_bits_bb_0_0, 0),
(self.digital_chunks_to_symbols_xx_0, 0))
self.connect((self.blocks_repack_bits_bb_0_1, 0),
(self.digital_chunks_to_symbols_xx_0_0, 0))
self.connect((self.blocks_stream_to_tagged_stream_0, 0),
(self.digital_crc32_bb_0_0, 0))
self.connect((self.blocks_stream_to_tagged_stream_0_0_0, 0),
(self.blocks_tagged_stream_multiply_length_0_0, 0))
self.connect((self.blocks_stream_to_vector_0, 0),
(self.dtv_dvbt_reed_solomon_dec_0, 0))
self.connect((self.blocks_stream_to_vector_1, 0),
(self.dtv_dvbt_reed_solomon_enc_0, 0))
self.connect((self.blocks_tagged_stream_multiply_length_0, 0),
(self.blocks_repack_bits_bb_0_1, 0))
self.connect((self.blocks_tagged_stream_multiply_length_0, 0),
(self.digital_protocol_formatter_bb_0, 0))
self.connect((self.blocks_tagged_stream_multiply_length_0_0, 0),
(self.digital_crc32_bb_0, 0))
self.connect((self.blocks_tagged_stream_mux_0, 0),
(self.digital_ofdm_carrier_allocator_cvc_0, 0))
self.connect((self.blocks_vector_to_stream_0, 0),
(self.blocks_tagged_stream_multiply_length_0, 0))
self.connect((self.blocks_vector_to_stream_0_0, 0),
(self.blocks_stream_to_tagged_stream_0_0_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0, 0),
(self.blocks_tagged_stream_mux_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0_0, 0),
(self.blocks_tagged_stream_mux_0, 1))
self.connect((self.digital_constellation_decoder_cb_0, 0),
(self.digital_packet_headerparser_b_0, 0))
self.connect((self.digital_constellation_decoder_cb_1, 0),
(self.blocks_repack_bits_bb_0, 0))
self.connect((self.digital_crc32_bb_0, 0), (self.zeromq_pub_sink_0, 0))
self.connect((self.digital_crc32_bb_0_0, 0),
(self.blocks_stream_to_vector_1, 0))
self.connect((self.digital_header_payload_demux_0, 0),
(self.fft_vxx_0, 0))
self.connect((self.digital_header_payload_demux_0, 1),
(self.fft_vxx_1, 0))
self.connect((self.digital_ofdm_carrier_allocator_cvc_0, 0),
(self.fft_vxx_0_0, 0))
self.connect((self.digital_ofdm_chanest_vcvc_0, 0),
(self.digital_ofdm_frame_equalizer_vcvc_0, 0))
self.connect((self.digital_ofdm_cyclic_prefixer_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_0, 0),
(self.digital_ofdm_serializer_vcc_header, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_1, 0),
(self.digital_ofdm_serializer_vcc_payload, 0))
self.connect((self.digital_ofdm_serializer_vcc_header, 0),
(self.digital_constellation_decoder_cb_0, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload, 0),
(self.digital_constellation_decoder_cb_1, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 0),
(self.analog_frequency_modulator_fc_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 1),
(self.digital_header_payload_demux_0, 1))
self.connect((self.digital_protocol_formatter_bb_0, 0),
(self.blocks_repack_bits_bb_0_0, 0))
self.connect((self.dtv_dvbt_reed_solomon_dec_0, 0),
(self.blocks_vector_to_stream_0_0, 0))
self.connect((self.dtv_dvbt_reed_solomon_enc_0, 0),
(self.blocks_vector_to_stream_0, 0))
self.connect((self.fft_vxx_0, 0),
(self.digital_ofdm_chanest_vcvc_0, 0))
self.connect((self.fft_vxx_0_0, 0),
(self.digital_ofdm_cyclic_prefixer_0, 0))
self.connect((self.fft_vxx_1, 0),
(self.digital_ofdm_frame_equalizer_vcvc_1, 0))
self.connect((self.foo_packet_pad2_0, 0), (self.uhd_usrp_sink_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.blocks_delay_0, 0))
self.connect((self.uhd_usrp_source_0, 0),
(self.digital_ofdm_sync_sc_cfb_0, 0))
self.connect((self.zeromq_sub_source_0, 0),
(self.blocks_stream_to_tagged_stream_0, 0))
def __init__(self):
gr.top_block.__init__(self, "Send Test Rx")
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1,),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21,),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, 0j, 0j, 0j, 0j]
self.sync_word1 = sync_word1 = [0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]
self.samp_rate = samp_rate = 5000000
self.rolloff = rolloff = 0
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)
self.packet_len = packet_len = 96
self.header_formatter = header_formatter = digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)
##################################################
# Blocks
##################################################
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join(("serial=30CEECB", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
self.uhd_usrp_source_0.set_center_freq(2.492e9, 0)
self.uhd_usrp_source_0.set_gain(40, 0)
self.uhd_usrp_source_0.set_antenna("TX/RX", 0)
self.pir_get_timestamp_delta_cm_0 = pir.get_timestamp_delta_cm()
self.fft_vxx_0 = fft.fft_vcc(fft_len, True, (()), True, 1)
self.digital_packet_headerparser_b_0 = digital.packet_headerparser_b(header_formatter.base())
self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(fft_len, fft_len/4, False)
self.digital_ofdm_serializer_vcc_header_0 = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_key, "", 0, "", True)
self.digital_ofdm_serializer_vcc_header = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, length_tag_key, "", 0, "", True)
self.digital_ofdm_frame_equalizer_vcvc_0 = digital.ofdm_frame_equalizer_vcvc(header_equalizer.base(), fft_len/4, length_tag_key, True, 1)
self.digital_ofdm_chanest_vcvc_0 = digital.ofdm_chanest_vcvc((sync_word1), (sync_word2), 1, 0, 3, False)
self.digital_header_payload_demux_0 = digital.header_payload_demux(
3,
fft_len,
fft_len/4,
length_tag_key,
"",
True,
gr.sizeof_gr_complex,
"rx_time",
samp_rate,
(),
)
self.digital_corr_est_cc_0 = digital.corr_est_cc(((0.00000 - 0.00000j, -0.23756 + 0.06817j, 0.02455 - 0.06790j, -0.02923 + 0.05414j, 0.00701 - 0.10558j, 0.07080 - 0.00739j, 0.04334 + 0.00660j, -0.11691 + 0.08759j, 0.09375 + 0.06250j, 0.04313 - 0.10143j, 0.00862 - 0.03317j, -0.05702 + 0.07170j, -0.09857 - 0.09157j, 0.02654 + 0.03204j, -0.03675 - 0.04537j, 0.06443 + 0.17533j, 0.04419 + 0.00000j, 0.06443 - 0.17533j, -0.03675 + 0.04537j, 0.02654 - 0.03204j, -0.09857 + 0.09157j, -0.05702 - 0.07170j, 0.00862 + 0.03317j, 0.04313 + 0.10143j, 0.09375 - 0.06250j, -0.11691 - 0.08759j, 0.04334 - 0.00660j, 0.07080 + 0.00739j, 0.00701 + 0.10558j, -0.02923 - 0.05414j, 0.02455 + 0.06790j, -0.23756 - 0.06817j, 0.00000 + 0.00000j, 0.23756 - 0.06817j, -0.02455 + 0.06790j, 0.02923 - 0.05414j, -0.00701 + 0.10558j, -0.07080 + 0.00739j, -0.04334 - 0.00660j, 0.11691 - 0.08759j, -0.09375 - 0.06250j, -0.04313 + 0.10143j, -0.00862 + 0.03317j, 0.05702 - 0.07170j, 0.09857 + 0.09157j, -0.02654 - 0.03204j, 0.03675 + 0.04537j, -0.06443 - 0.17533j, -0.04419 + 0.00000j, -0.06443 + 0.17533j, 0.03675 - 0.04537j, -0.02654 + 0.03204j, 0.09857 - 0.09157j, 0.05702 + 0.07170j, -0.00862 - 0.03317j, -0.04313 - 0.10143j, -0.09375 + 0.06250j, 0.11691 + 0.08759j, -0.04334 + 0.00660j, -0.07080 - 0.00739j, -0.00701 - 0.10558j, 0.02923 + 0.05414j, -0.02455 - 0.06790j, 0.23756 + 0.06817j, 0.00000 - 0.00000j, -0.23756 + 0.06817j, 0.02455 - 0.06790j, -0.02923 + 0.05414j, 0.00701 - 0.10558j, 0.07080 - 0.00739j, 0.04334 + 0.00660j, -0.11691 + 0.08759j, 0.09375 + 0.06250j, 0.04313 - 0.10143j, 0.00862 - 0.03317j, -0.05702 + 0.07170j, -0.09857 - 0.09157j, 0.02654 + 0.03204j, -0.03675 - 0.04537j, 0.06443 + 0.17533j, 0.06250 + 0.03125j, -0.10790 - 0.08255j, 0.00182 + 0.03337j, 0.09586 - 0.07711j, 0.06872 + 0.05573j, 0.00373 + 0.04257j, -0.03565 - 0.03853j, -0.14193 + 0.01821j, -0.15089 - 0.03504j, 0.14492 - 0.01154j, 0.07984 + 0.05798j, -0.06544 - 0.02403j, 0.10927 - 0.05236j, 0.14303 + 0.12879j, -0.04601 - 0.13003j, -0.11594 + 0.05444j, -0.06250 + 0.00000j, -0.11594 - 0.05444j, -0.04601 + 0.13003j, 0.14303 - 0.12879j, 0.10927 + 0.05236j, -0.06544 + 0.02403j, 0.07984 - 0.05798j, 0.14492 + 0.01154j, -0.15089 + 0.03504j, -0.14193 - 0.01821j, -0.03565 + 0.03853j, 0.00373 - 0.04257j, 0.06872 - 0.05573j, 0.09586 + 0.07711j, 0.00182 - 0.03337j, -0.10790 + 0.08255j, 0.06250 - 0.03125j, -0.00527 - 0.11799j, 0.00182 + 0.05304j, 0.05923 + 0.02687j, -0.09460 + 0.11347j, 0.06227 - 0.14667j, -0.03565 + 0.03377j, -0.10488 - 0.05448j, 0.02589 + 0.09754j, 0.06134 - 0.07480j, 0.07984 + 0.06226j, -0.02766 + 0.02419j, 0.04162 - 0.02844j, -0.09425 - 0.14799j, -0.04601 + 0.09145j, 0.09289 + 0.12172j, -0.06250 + 0.00000j, 0.09289 - 0.12172j, -0.04601 - 0.09145j, -0.09425 + 0.14799j, 0.04162 + 0.02844j, -0.02766 - 0.02419j, 0.07984 - 0.06226j, 0.06134 + 0.07480j, 0.02589 - 0.09754j, -0.10488 + 0.05448j, -0.03565 - 0.03377j, 0.06227 + 0.14667j, -0.09460 - 0.11347j, 0.05923 - 0.02687j, 0.00182 - 0.05304j, -0.00527 + 0.11799j, 0.06250 + 0.03125j, -0.10790 - 0.08255j, 0.00182 + 0.03337j, 0.09586 - 0.07711j, 0.06872 + 0.05573j, 0.00373 + 0.04257j, -0.03565 - 0.03853j, -0.14193 + 0.01821j, -0.15089 - 0.03504j, 0.14492 - 0.01154j, 0.07984 + 0.05798j, -0.06544 - 0.02403j, 0.10927 - 0.05236j, 0.14303 + 0.12879j, -0.04601 - 0.13003j, -0.11594 + 0.05444j)), 1, 0, 0.999999999)
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(header_mod.base())
self.blocks_tag_gate_0 = blocks.tag_gate(gr.sizeof_gr_complex * 1, False)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_gr_complex*1)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_message_debug_0 = blocks.message_debug()
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex*1, fft_len+fft_len/4)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(-2.0/fft_len)
##################################################
# Connections
##################################################
self.msg_connect((self.digital_packet_headerparser_b_0, 'header_data'), (self.digital_header_payload_demux_0, 'header_data'))
self.msg_connect((self.pir_get_timestamp_delta_cm_0, 'out'), (self.blocks_message_debug_0, 'print'))
self.connect((self.analog_frequency_modulator_fc_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_multiply_xx_0, 0), (self.digital_corr_est_cc_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.digital_header_payload_demux_0, 0))
self.connect((self.blocks_tag_gate_0, 0), (self.blocks_delay_0, 0))
self.connect((self.blocks_tag_gate_0, 0), (self.digital_ofdm_sync_sc_cfb_0, 0))
self.connect((self.digital_constellation_decoder_cb_0, 0), (self.digital_packet_headerparser_b_0, 0))
self.connect((self.digital_corr_est_cc_0, 0), (self.pir_get_timestamp_delta_cm_0, 0))
self.connect((self.digital_header_payload_demux_0, 1), (self.digital_ofdm_serializer_vcc_header_0, 0))
self.connect((self.digital_header_payload_demux_0, 0), (self.fft_vxx_0, 0))
self.connect((self.digital_ofdm_chanest_vcvc_0, 0), (self.digital_ofdm_frame_equalizer_vcvc_0, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_0, 0), (self.digital_ofdm_serializer_vcc_header, 0))
self.connect((self.digital_ofdm_serializer_vcc_header, 0), (self.digital_constellation_decoder_cb_0, 0))
self.connect((self.digital_ofdm_serializer_vcc_header_0, 0), (self.blocks_null_sink_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 0), (self.analog_frequency_modulator_fc_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 1), (self.digital_header_payload_demux_0, 1))
self.connect((self.fft_vxx_0, 0), (self.digital_ofdm_chanest_vcvc_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.blocks_tag_gate_0, 0))
def __init__(
self, ipp1="127.0.0.1", ipp2="127.0.0.1", ipp3="127.0.0.1", ipp4="127.0.0.1", iptx="127.0.0.1", samp_rate=1000
):
gr.top_block.__init__(self, "OFDM Rx")
##################################################
# Parameters
##################################################
self.ipp1 = ipp1
self.ipp2 = ipp2
self.ipp3 = ipp3
self.ipp4 = ipp4
self.iptx = iptx
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.pilot_symbols = pilot_symbols = ((1, 1, 1, -1),)
self.pilot_carriers = pilot_carriers = ((-21, -7, 7, 21),)
self.payload_mod = payload_mod = digital.constellation_qpsk()
self.packet_length_tag_key = packet_length_tag_key = "packet_len"
self.occupied_carriers = occupied_carriers = (
range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),
)
self.length_tag_key = length_tag_key = "frame_len"
self.header_mod = header_mod = digital.constellation_bpsk()
self.fft_len = fft_len = 64
self.sync_word2 = sync_word2 = [
0j,
0j,
0j,
0j,
0j,
0j,
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
0j,
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
(-1 + 0j),
0j,
0j,
0j,
0j,
0j,
]
self.sync_word1 = sync_word1 = [
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
-1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
1.41421356,
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
]
self.payload_equalizer = payload_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1
)
self.packet_len = packet_len = 96
self.header_formatter = header_formatter = digital.packet_header_ofdm(
occupied_carriers,
n_syms=1,
len_tag_key=packet_length_tag_key,
frame_len_tag_key=length_tag_key,
bits_per_header_sym=header_mod.bits_per_symbol(),
bits_per_payload_sym=payload_mod.bits_per_symbol(),
scramble_header=False,
)
self.header_equalizer = header_equalizer = digital.ofdm_equalizer_simpledfe(
fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols
)
##################################################
# Blocks
##################################################
self.zeromq_push_sink_0_0_1_0_0 = zeromq.push_sink(gr.sizeof_char, 1, "tcp://" + ipp3 + ":55530", 100, True)
self.zeromq_push_sink_0_0_1_0 = zeromq.push_sink(
gr.sizeof_gr_complex, 64, "tcp://" + ipp2 + ":55521", 100, True
)
self.zeromq_push_sink_0_0_1 = zeromq.push_sink(gr.sizeof_gr_complex, 64, "tcp://" + ipp2 + ":55520", 100, True)
self.zeromq_push_sink_0_0_0 = zeromq.push_sink(gr.sizeof_char, 1, "tcp://" + ipp1 + ":55511", 100, True)
self.zeromq_push_sink_0_0 = zeromq.push_sink(gr.sizeof_gr_complex, 1, "tcp://" + ipp1 + ":55510", 100, True)
self.zeromq_push_sink_0 = zeromq.push_sink(gr.sizeof_gr_complex, 1, "tcp://" + iptx + ":55500", 100, True)
self.zeromq_pull_source_0_0_0_0_0_0 = zeromq.pull_source(
gr.sizeof_gr_complex, 64, "tcp://" + ipp2 + ":55521", 100, True
)
self.zeromq_pull_source_0_0_0_0_0 = zeromq.pull_source(
gr.sizeof_gr_complex, 64, "tcp://" + ipp2 + ":55520", 100, True
)
self.zeromq_pull_source_0_0_0_0 = zeromq.pull_source(gr.sizeof_char, 1, "tcp://" + ipp3 + ":55530", 100, True)
self.zeromq_pull_source_0_0_0 = zeromq.pull_source(gr.sizeof_char, 1, "tcp://" + ipp1 + ":55511", 100, True)
self.zeromq_pull_source_0_0 = zeromq.pull_source(gr.sizeof_gr_complex, 1, "tcp://" + ipp1 + ":55510", 100, True)
self.zeromq_pull_source_0 = zeromq.pull_source(gr.sizeof_gr_complex, 1, "tcp://" + iptx + ":55500", 100, True)
self.my_random_source_limit_rate_0 = my.random_source_limit_rate(1000)
self.my_number_sync_timestamp_0 = my.number_sync_timestamp()
self.fft_vxx_1 = fft.fft_vcc(fft_len, True, (), True, 1)
self.fft_vxx_0 = fft.fft_vcc(fft_len, True, (()), True, 1)
self.digital_packet_headerparser_b_0 = digital.packet_headerparser_b(header_formatter.base())
self.digital_ofdm_tx_0 = digital.ofdm_tx(
fft_len=fft_len,
cp_len=fft_len / 4,
packet_length_tag_key=packet_length_tag_key,
occupied_carriers=occupied_carriers,
pilot_carriers=pilot_carriers,
pilot_symbols=pilot_symbols,
sync_word1=sync_word1,
sync_word2=sync_word2,
bps_header=1,
bps_payload=2,
rolloff=0,
debug_log=True,
scramble_bits=False,
)
self.digital_ofdm_sync_sc_cfb_0 = digital.ofdm_sync_sc_cfb(fft_len, fft_len / 4, False)
self.digital_ofdm_serializer_vcc_payload = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, packet_length_tag_key, 1, "", True
)
self.digital_ofdm_serializer_vcc_header = digital.ofdm_serializer_vcc(
fft_len, occupied_carriers, length_tag_key, "", 0, "", True
)
self.digital_ofdm_frame_equalizer_vcvc_1 = digital.ofdm_frame_equalizer_vcvc(
payload_equalizer.base(), fft_len / 4, length_tag_key, True, 0
)
self.digital_ofdm_frame_equalizer_vcvc_0 = digital.ofdm_frame_equalizer_vcvc(
header_equalizer.base(), fft_len / 4, length_tag_key, True, 1
)
self.digital_ofdm_chanest_vcvc_0 = digital.ofdm_chanest_vcvc((sync_word1), (sync_word2), 1, 0, 3, False)
self.digital_header_payload_demux_0 = digital.header_payload_demux(
3, fft_len, fft_len / 4, length_tag_key, "", True, gr.sizeof_gr_complex, "rx_time", samp_rate, ()
)
self.digital_crc32_bb_0 = digital.crc32_bb(True, packet_length_tag_key, True)
self.digital_constellation_decoder_cb_1 = digital.constellation_decoder_cb(payload_mod.base())
self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(header_mod.base())
self.channels_channel_model_0 = channels.channel_model(
noise_voltage=0.1,
frequency_offset=0 * 1.0 / fft_len,
epsilon=1.0,
taps=(1.0,),
noise_seed=0,
block_tags=True,
)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex * 1, samp_rate, True)
self.blocks_tag_debug_1 = blocks.tag_debug(gr.sizeof_char * 1, "Rx Bytes", "")
self.blocks_tag_debug_1.set_display(True)
self.blocks_stream_to_tagged_stream_0 = blocks.stream_to_tagged_stream(
gr.sizeof_char, 1, packet_len, packet_length_tag_key
)
self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(
payload_mod.bits_per_symbol(), 8, packet_length_tag_key, True, gr.GR_LSB_FIRST
)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex * 1, fft_len + fft_len / 4)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(-2.0 / fft_len)
##################################################
# Connections
##################################################
self.msg_connect(
(self.digital_packet_headerparser_b_0, "header_data"), (self.digital_header_payload_demux_0, "header_data")
)
self.connect((self.analog_frequency_modulator_fc_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_multiply_xx_0, 0), (self.zeromq_push_sink_0_0, 0))
self.connect((self.blocks_repack_bits_bb_0, 0), (self.digital_crc32_bb_0, 0))
self.connect((self.blocks_stream_to_tagged_stream_0, 0), (self.digital_ofdm_tx_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.zeromq_push_sink_0, 0))
self.connect((self.channels_channel_model_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.digital_constellation_decoder_cb_0, 0), (self.zeromq_push_sink_0_0_1_0_0, 0))
self.connect((self.digital_constellation_decoder_cb_1, 0), (self.blocks_repack_bits_bb_0, 0))
self.connect((self.digital_crc32_bb_0, 0), (self.blocks_tag_debug_1, 0))
self.connect((self.digital_crc32_bb_0, 0), (self.my_number_sync_timestamp_0, 0))
self.connect((self.digital_header_payload_demux_0, 0), (self.zeromq_push_sink_0_0_1, 0))
self.connect((self.digital_header_payload_demux_0, 1), (self.zeromq_push_sink_0_0_1_0, 0))
self.connect((self.digital_ofdm_chanest_vcvc_0, 0), (self.digital_ofdm_frame_equalizer_vcvc_0, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_0, 0), (self.digital_ofdm_serializer_vcc_header, 0))
self.connect((self.digital_ofdm_frame_equalizer_vcvc_1, 0), (self.digital_ofdm_serializer_vcc_payload, 0))
self.connect((self.digital_ofdm_serializer_vcc_header, 0), (self.digital_constellation_decoder_cb_0, 0))
self.connect((self.digital_ofdm_serializer_vcc_payload, 0), (self.digital_constellation_decoder_cb_1, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 0), (self.analog_frequency_modulator_fc_0, 0))
self.connect((self.digital_ofdm_sync_sc_cfb_0, 1), (self.zeromq_push_sink_0_0_0, 0))
self.connect((self.digital_ofdm_tx_0, 0), (self.channels_channel_model_0, 0))
self.connect((self.fft_vxx_0, 0), (self.digital_ofdm_chanest_vcvc_0, 0))
self.connect((self.fft_vxx_1, 0), (self.digital_ofdm_frame_equalizer_vcvc_1, 0))
self.connect((self.my_random_source_limit_rate_0, 0), (self.blocks_stream_to_tagged_stream_0, 0))
self.connect((self.zeromq_pull_source_0, 0), (self.blocks_delay_0, 0))
self.connect((self.zeromq_pull_source_0, 0), (self.digital_ofdm_sync_sc_cfb_0, 0))
self.connect((self.zeromq_pull_source_0_0, 0), (self.digital_header_payload_demux_0, 0))
self.connect((self.zeromq_pull_source_0_0_0, 0), (self.digital_header_payload_demux_0, 1))
self.connect((self.zeromq_pull_source_0_0_0_0, 0), (self.digital_packet_headerparser_b_0, 0))
self.connect((self.zeromq_pull_source_0_0_0_0_0, 0), (self.fft_vxx_0, 0))
self.connect((self.zeromq_pull_source_0_0_0_0_0_0, 0), (self.fft_vxx_1, 0))
