def test_iir_ccd_001(self):
src_data = (1+1j, 2+2j, 3+3j, 4+4j, 5+5j, 6+6j, 7+7j, 8+8j)
expected_result = (2+2j, (6+6j), (12+12j), (20+20j), (30+30j), (42+42j), (56+56j), (72+72j))
fftaps = (2,)
fbtaps = (0, 1)
src = blocks.vector_source_c(src_data)
op = filter.iir_filter_ccd(fftaps, fbtaps)
dst = blocks.vector_sink_c()
self.tb.connect(src, op)
self.tb.connect(op, dst)
self.tb.run()
result_data = dst.data()
self.assertFloatTuplesAlmostEqual (expected_result, result_data)
def test_iir_ccd_001(self):
src_data = (1 + 1j, 2 + 2j, 3 + 3j, 4 + 4j, 5 + 5j, 6 + 6j, 7 + 7j,
8 + 8j)
expected_result = (2 + 2j, (6 + 6j), (12 + 12j), (20 + 20j),
(30 + 30j), (42 + 42j), (56 + 56j), (72 + 72j))
fftaps = (2, )
fbtaps = (0, 1)
src = blocks.vector_source_c(src_data)
op = filter.iir_filter_ccd(fftaps, fbtaps)
dst = blocks.vector_sink_c()
self.tb.connect(src, op)
self.tb.connect(op, dst)
self.tb.run()
result_data = dst.data()
self.assertFloatTuplesAlmostEqual(expected_result, result_data)
def test_iir_ccd_002(self):
src_data = (1 + 1j, 2 + 2j, 3 + 3j, 4 + 4j, 5 + 5j, 6 + 6j, 7 + 7j,
8 + 8j)
expected_result = (2 + 2j, (6 + 6j), (12 + 12j), (20 + 20j),
(30 + 30j), (42 + 42j), (56 + 56j), (72 + 72j))
src = blocks.vector_source_c(src_data)
op = filter.iir_filter_ccd([1], [1])
dst = blocks.vector_sink_c()
fftaps = (2, )
fbtaps = (0, 1)
# FIXME: implement set_taps as generalized callback
# op.set_taps(fftaps, fbtaps)
op.set_fftaps(fftaps)
op.set_fbtaps(fbtaps)
self.tb.connect(src, op)
self.tb.connect(op, dst)
self.tb.run()
result_data = dst.data()
self.assertFloatTuplesAlmostEqual(expected_result, result_data)
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 __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 __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, 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()
elif payload_mod == '8psk':
self.payload_mod = payload_mod = digital.constellation_8psk()
##################################################
# 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(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((.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")
