def test_003(self):
offsets = (6, 3, 8)
key = pmt.string_to_symbol('key')
srcid = pmt.string_to_symbol('qa_tag_utils')
tags = []
for k in offsets:
t = gr.tag_t()
t.offset = k
t.key = key
t.value = pmt.from_long(k)
t.srcid = srcid
tags.append(t)
for k, t in zip(sorted(offsets),
sorted(tags, key=gr.tag_t_offset_compare_key())):
self.assertEqual(t.offset, k)
self.assertTrue(pmt.equal(t.key, key))
self.assertTrue(pmt.equal(t.value, pmt.from_long(k)))
self.assertTrue(pmt.equal(t.srcid, srcid))
tmin = min(tags, key=gr.tag_t_offset_compare_key())
self.assertEqual(tmin.offset, min(offsets))
self.assertTrue(pmt.equal(tmin.key, key))
self.assertTrue(pmt.equal(tmin.value, pmt.from_long(min(offsets))))
self.assertTrue(pmt.equal(tmin.srcid, srcid))
tmax = max(tags, key=gr.tag_t_offset_compare_key())
self.assertEqual(tmax.offset, max(offsets))
self.assertTrue(pmt.equal(tmax.key, key))
self.assertTrue(pmt.equal(tmax.value, pmt.from_long(max(offsets))))
self.assertTrue(pmt.equal(tmax.srcid, srcid))
def start(self):
self.F = open(self.filename, 'rb')
self.F.seek(0, os.SEEK_END)
(s,l) = (0,self.F.tell()/self.itemsize)
self.message_port_pub(pmt.intern("file_range"),
pmt.cons(pmt.from_long(s),pmt.from_long(l)))
return True
def test_003_12bits_formatter_object (self):
# 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_default(12, 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, 0, 0, 0, 0, 0,
0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0
)
self.assertEqual(sink.data(), expected_data)
def test_005_packet_len_tag (self):
""" Standard test """
fft_len = 16
tx_symbols = range(1, 16);
tx_symbols = (0, 1, 1j, 2, 3, 0, 0, 0, 0, 0, 0, 4, 5, 2j, 6, 0,
0, 7, 8, 3j, 9, 0, 0, 0, 0, 0, 0, 10, 4j, 11, 12, 0,
0, 13, 1j, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 2j, 0, 0)
expected_result = tuple(range(1, 16))
occupied_carriers = ((1, 3, 4, 11, 12, 14), (1, 2, 4, 11, 13, 14),)
n_syms = len(tx_symbols)/fft_len
tag_name = "len"
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(n_syms)
tag2 = gr.tag_t()
tag2.offset = 0
tag2.key = pmt.string_to_symbol("packet_len")
tag2.value = pmt.from_long(len(expected_result))
src = blocks.vector_source_c(tx_symbols, False, fft_len, (tag, tag2))
serializer = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, tag_name, "packet_len", 0, "", False)
sink = blocks.vector_sink_c()
self.tb.connect(src, serializer, sink)
self.tb.run ()
self.assertEqual(sink.data(), expected_result)
self.assertEqual(len(sink.tags()), 1)
result_tag = sink.tags()[0]
self.assertEqual(pmt.symbol_to_string(result_tag.key), "packet_len")
self.assertEqual(pmt.to_long(result_tag.value), len(expected_result))
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 test_002_32bits (self):
# 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))
header = digital.packet_headergenerator_bb(32, tagname)
sink = blocks.vector_sink_b()
self.tb.connect(src, header, sink)
self.tb.run()
expected_data = (
# | Number of symbols | Packet number | Parity
0, 0, 1, 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, 0, 0, 0,
0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
)
self.assertEqual(sink.data(), expected_data)
def test_002_tags_plus_data(self):
packet_len = 16
src_data = range(packet_len)
tag1 = gr.tag_t()
tag1.offset = 0
tag1.key = pmt.string_to_symbol('spam')
tag1.value = pmt.from_long(23)
tag2 = gr.tag_t()
tag2.offset = 10 # Must be < packet_len
tag2.key = pmt.string_to_symbol('eggs')
tag2.value = pmt.from_long(42)
src = blocks.vector_source_f(src_data, tags=(tag1, tag2))
s2ts = blocks.stream_to_tagged_stream(gr.sizeof_float, vlen=1, packet_len=packet_len, len_tag_key="packet_len")
ts2pdu = blocks.tagged_stream_to_pdu(blocks.float_t, "packet_len")
dbg = blocks.message_debug()
self.tb.connect(src, s2ts, ts2pdu)
self.tb.msg_connect(ts2pdu, "pdus", dbg, "store")
self.tb.start()
while dbg.num_messages() < 1:
time.sleep(0.1)
self.tb.stop()
self.tb.wait()
result_msg = dbg.get_message(0)
metadata = pmt.to_python(pmt.car(result_msg))
vector = pmt.f32vector_elements(pmt.cdr(result_msg))
self.assertEqual(metadata, {'eggs': 42, 'spam': 23})
self.assertFloatTuplesAlmostEqual(tuple(vector), src_data)
def test_with_tags_2s_rolloff(self):
" With tags and a 2-sample rolloff "
fft_len = 8
cp_len = 2
tag_name = "length"
expected_result = (7.0/2, 8, 1, 2, 3, 4, 5, 6, 7, 8, # 1.0/2
7.0/2+1.0/2, 8, 1, 2, 3, 4, 5, 6, 7, 8, 1.0/2)
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(2)
tag2 = gr.tag_t()
tag2.offset = 1
tag2.key = pmt.string_to_symbol("random_tag")
tag2.value = pmt.from_long(42)
src = blocks.vector_source_c(range(1, fft_len+1) * 2, False, fft_len, (tag, tag2))
cp = digital.ofdm_cyclic_prefixer(fft_len, fft_len + cp_len, 2, tag_name)
sink = blocks.vector_sink_c()
self.tb.connect(src, cp, sink)
self.tb.run()
self.assertEqual(sink.data(), expected_result)
tags = [gr.tag_to_python(x) for x in sink.tags()]
tags = sorted([(x.offset, x.key, x.value) for x in tags])
expected_tags = [
(0, tag_name, len(expected_result)),
(fft_len+cp_len, "random_tag", 42)
]
self.assertEqual(tags, expected_tags)
def int_list_to_pmt(self, items):
if len(items) == 0:
return pmt.from_bool(pmt.PMT_F)
else:
pmtl = pmt.list1(pmt.from_long(items[0]))
for i in range(len(items) - 1):
pmtl = pmt.list_add(pmtl, pmt.from_long(items[i + 1]))
return pmtl
def work(self, input_items, output_items):
out = output_items[0]
self.add_item_tag(0, self.nitems_written(0), pmt.intern("image_width"), pmt.from_long(self.image_width))
self.add_item_tag(0, self.nitems_written(0), pmt.intern("line_num"), pmt.from_long(self.line_num))
out[:self.image_width] = self.image_data[self.image_width*self.line_num: self.image_width*(1+self.line_num)]
self.line_num += 1
if self.line_num >= self.image_height:
self.line_num = 0
return self.image_width
def test_003_t (self):
"""
more advanced:
- 6 symbols per carrier
- 2 pilots per carrier
- have enough data for nearly 3 OFDM symbols
- send that twice
- add some random tags
- don't shift
"""
tx_symbols = list(range(1, 16)); # 15 symbols
pilot_symbols = ((1j, 2j), (3j, 4j))
occupied_carriers = ((1, 3, 4, 11, 12, 14), (1, 2, 4, 11, 13, 14),)
pilot_carriers = ((2, 13), (3, 12))
expected_result = (0, 1, 1j, 2, 3, 0, 0, 0, 0, 0, 0, 4, 5, 2j, 6, 0,
0, 7, 8, 3j, 9, 0, 0, 0, 0, 0, 0, 10, 4j, 11, 12, 0,
0, 13, 1j, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 2j, 0, 0)
fft_len = 16
testtag1 = gr.tag_t()
testtag1.offset = 0
testtag1.key = pmt.string_to_symbol('tag1')
testtag1.value = pmt.from_long(0)
testtag2 = gr.tag_t()
testtag2.offset = 7 # On the 2nd OFDM symbol
testtag2.key = pmt.string_to_symbol('tag2')
testtag2.value = pmt.from_long(0)
testtag3 = gr.tag_t()
testtag3.offset = len(tx_symbols)+1 # First OFDM symbol of packet 2
testtag3.key = pmt.string_to_symbol('tag3')
testtag3.value = pmt.from_long(0)
testtag4 = gr.tag_t()
testtag4.offset = 2*len(tx_symbols)-1 # Last OFDM symbol of packet 2
testtag4.key = pmt.string_to_symbol('tag4')
testtag4.value = pmt.from_long(0)
src = blocks.vector_source_c(tx_symbols * 2, False, 1, (testtag1, testtag2, testtag3, testtag4))
alloc = digital.ofdm_carrier_allocator_cvc(fft_len,
occupied_carriers,
pilot_carriers,
pilot_symbols, (),
self.tsb_key,
False)
sink = blocks.tsb_vector_sink_c(fft_len)
self.tb.connect(src, blocks.stream_to_tagged_stream(gr.sizeof_gr_complex, 1, len(tx_symbols), self.tsb_key), alloc, sink)
self.tb.run ()
self.assertEqual(sink.data()[0], expected_result)
tags_found = {'tag1': False, 'tag2': False, 'tag3': False, 'tag4': False}
correct_offsets = {'tag1': 0, 'tag2': 1, 'tag3': 3, 'tag4': 5}
for tag in sink.tags():
key = pmt.symbol_to_string(tag.key)
if key in list(tags_found.keys()):
tags_found[key] = True
self.assertEqual(correct_offsets[key], tag.offset)
self.assertTrue(all(tags_found.values()))
def test_003_t (self):
"""
Like test 1, but twice, plus one fail
"""
n_zeros = 5
header = (1, 2, 3)
header_fail = (-1, -2, -4) # Contents don't really matter
payload1 = tuple(range(5, 20))
payload2 = (42,)
data_signal = (0,) * n_zeros + header + payload1
trigger_signal = [0,] * len(data_signal) * 2
trigger_signal[n_zeros] = 1
trigger_signal[len(data_signal)] = 1
trigger_signal[len(data_signal)+len(header_fail)+n_zeros] = 1
tx_signal = data_signal + header_fail + (0,) * n_zeros + header + payload2 + (0,) * 1000
data_src = blocks.vector_source_f(tx_signal, False)
trigger_src = blocks.vector_source_b(trigger_signal, False)
hpd = digital.header_payload_demux(
len(header), 1, 0, "frame_len", "detect", False, gr.sizeof_float
)
self.assertEqual(pmt.length(hpd.message_ports_in()), 1)
header_sink = blocks.vector_sink_f()
payload_sink = blocks.vector_sink_f()
self.tb.connect(data_src, (hpd, 0))
self.tb.connect(trigger_src, (hpd, 1))
self.tb.connect((hpd, 0), header_sink)
self.tb.connect((hpd, 1), payload_sink)
self.tb.start()
time.sleep(.2) # Need this, otherwise, the next message is ignored
hpd.to_basic_block()._post(
pmt.intern('header_data'),
pmt.from_long(len(payload1))
)
while len(payload_sink.data()) < len(payload1):
time.sleep(.2)
hpd.to_basic_block()._post(
pmt.intern('header_data'),
pmt.PMT_F
)
# This next command is a bit of a showstopper, but there's no condition to check upon
# to see if the previous msg handling is finished
time.sleep(.7)
hpd.to_basic_block()._post(
pmt.intern('header_data'),
pmt.from_long(len(payload2))
)
while len(payload_sink.data()) < len(payload1) + len(payload2):
time.sleep(.2)
self.tb.stop()
self.tb.wait()
self.assertEqual(header_sink.data(), header + header_fail + header)
self.assertEqual(payload_sink.data(), payload1 + payload2)
def test_004_connect (self):
"""
Advanced test:
- Allocator -> IFFT -> Frequency offset -> FFT -> Serializer
- FFT does shift (moves DC to middle)
- Make sure input == output
- Frequency offset is -2 carriers
"""
fft_len = 8
n_syms = 1
carr_offset = -2
freq_offset = 1.0 / fft_len * carr_offset # Normalized frequency
occupied_carriers = ((-2, -1, 1, 2),)
pilot_carriers = ((-3,),(3,))
pilot_symbols = ((1j,),(-1j,))
tx_data = (1, 2, 3, 4)
tag_name = "len"
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(len(tx_data))
offsettag = gr.tag_t()
offsettag.offset = 0
offsettag.key = pmt.string_to_symbol("ofdm_sync_carr_offset")
offsettag.value = pmt.from_long(carr_offset)
src = blocks.vector_source_c(tx_data, False, 1, (tag, offsettag))
alloc = digital.ofdm_carrier_allocator_cvc(fft_len,
occupied_carriers,
pilot_carriers,
pilot_symbols, (),
tag_name)
tx_ifft = fft.fft_vcc(fft_len, False, (1.0/fft_len,)*fft_len, True)
oscillator = analog.sig_source_c(1.0, analog.GR_COS_WAVE, freq_offset, 1.0/fft_len)
mixer = blocks.multiply_cc()
rx_fft = fft.fft_vcc(fft_len, True, (), True)
sink2 = blocks.vector_sink_c(fft_len)
self.tb.connect(rx_fft, sink2)
serializer = digital.ofdm_serializer_vcc(
alloc, "", 0, "ofdm_sync_carr_offset", True
)
sink = blocks.vector_sink_c()
self.tb.connect(
src, alloc, tx_ifft,
blocks.vector_to_stream(gr.sizeof_gr_complex, fft_len),
(mixer, 0),
blocks.stream_to_vector(gr.sizeof_gr_complex, fft_len),
rx_fft, serializer, sink
)
self.tb.connect(oscillator, (mixer, 1))
self.tb.run ()
self.assertComplexTuplesAlmostEqual(sink.data()[-len(occupied_carriers[0]):], tx_data, places=4)
def test19(self):
max_key = pmt.intern("MAX")
_max = pmt.from_long(self.MAXINT32)
min_key = pmt.intern("MIN")
_min = pmt.from_long(self.MININT32)
d = pmt.make_dict()
d = pmt.dict_add(d, max_key, _max)
d = pmt.dict_add(d, min_key, _min)
s = pmt.serialize_str(d)
deser = pmt.deserialize_str(s)
self.assertTrue(pmt.equal(d, deser))
p_dict = pmt.to_python(deser)
self.assertEqual(self.MAXINT32, p_dict["MAX"])
self.assertEqual(self.MININT32, p_dict["MIN"])
def work(self, input_items, output_items):
num_output_items = len(output_items[0])
output_items[0][:] = 1.0+0j
count = 0
key = pmt.string_to_symbol("pa_ramp")
value = pmt.from_long(1) # send enable
self.add_item_tag(0, count, key, value)
count = self.rd_at
value = pmt.from_long(0) # send disable
self.add_item_tag(0, count, key, value)
return num_output_items
def test_001_t (self):
"""
pretty simple (the carrier allocation is not a practical OFDM configuration!)
"""
fft_len = 6
tx_symbols = (1, 2, 3)
# ^ this gets mapped to the DC carrier because occupied_carriers[0][0] == 0
pilot_symbols = ((1j,),)
occupied_carriers = ((0, 1, 2),)
pilot_carriers = ((3,),)
sync_word = (range(fft_len),)
expected_result = tuple(sync_word[0] + [1j, 0, 0, 1, 2, 3])
# ^ DC carrier
tag_name = "len"
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(len(tx_symbols))
src = blocks.vector_source_c(tx_symbols, False, 1, (tag,))
alloc = digital.ofdm_carrier_allocator_cvc(fft_len,
occupied_carriers,
pilot_carriers,
pilot_symbols, sync_word,
tag_name)
sink = blocks.vector_sink_c(fft_len)
self.tb.connect(src, alloc, sink)
self.tb.run ()
self.assertEqual(sink.data(), expected_result)
def handle_msg(self, msg):
if pmt.dict_has_key(msg, pmt.intern(self.len_tag_key)):
packet_len = pmt.to_python(msg)[self.len_tag_key]
msg = pmt.dict_delete(msg, pmt.intern(self.len_tag_key))
msg = pmt.dict_add(msg, pmt.intern(self.len_tag_key), pmt.from_long(packet_len * 8))
self.message_port_pub(self.msg_buf_out, msg)
def generate_tag(tag_key, srcid, value, offset):
tag = gr.tag_t()
tag.key = pmt.string_to_symbol(tag_key)
tag.srcid = pmt.string_to_symbol(srcid)
tag.value = pmt.from_long(value)
tag.offset = offset
return tag
def write_data(self, msg):
snr = pmt.to_double(pmt.dict_ref(msg, pmt.intern("snr"), pmt.from_double(0)))
encoding = pmt.to_long(pmt.dict_ref(msg, pmt.intern("encoding"), pmt.from_long(0)))
time_now = time() * 1000
delay = str(time_now - self.last_time)
self.last_time = time_now
if self.snr_file != "":
f_snr = open(self.snr_file, 'a')
f_snr.write(str(snr) + '\n')
f_snr.close()
if self.enc_file != "":
f_enc = open(self.enc_file, 'a')
f_enc.write(str(encoding) + '\n')
f_enc.close()
if self.delay_file != "":
f_delay = open(self.delay_file, 'a')
f_delay.write(delay + '\n')
f_delay.close()
if self.debug:
print("SNR:" + str(snr))
print("Encoding:" + str(encoding))
print("Delay in millis: " + delay)
def general_work(self, input_items, output_items):
inp = input_items[0]
out = output_items[0]
window = list(self.stream) + inp.tolist()
alltags = self.get_tags_in_range(0, self.maxtag, self.nitems_read(0) + len(inp), self.syncword_tag)
for tag in alltags:
if tag.offset not in self.tags:
self.maxtag = max(self.maxtag, tag.offset)
self.tags.append(tag.offset)
for tag in self.tags:
if (tag >= self.nitems_read(0) - len(self.stream)) and (tag < self.nitems_read(0) + len(inp) - self.packet_len + 1):
self.tags.remove(tag)
start = tag - self.nitems_read(0) + len(self.stream)
packet = window[start : start + self.packet_len]
self.data += packet
self.add_item_tag(0, self.written, self.packetlen_tag, pmt.from_long(self.packet_len))
self.written += self.packet_len
self.stream.extend(inp.tolist())
len_write = min(len(self.data), len(output_items[0]))
output_items[0][:len_write] = self.data[:len_write]
self.data = self.data[len_write:]
self.consume(0, len(inp))
return len_write
def test_001_t(self):
tkey = 'packet_len'
tsrc = 'testsrc'
ptkey = pmt.intern(tkey)
ptsrc = pmt.intern(tsrc)
pre_padding = 17
post_padding = 23
tag = gr.tag_utils.python_to_tag((0, ptkey, pmt.from_long(128), ptsrc))
data = np.arange(128) + 1
data = data.astype(np.complex)
ref = np.concatenate((np.zeros(pre_padding, dtype=data.dtype),
data, np.zeros(post_padding, dtype=data.dtype)))
src = blocks.vector_source_c(data, tags=(tag, ))
uut = gfdm.short_burst_shaper(pre_padding, post_padding, tkey)
snk = blocks.vector_sink_c()
# set up fg
self.tb.connect(src, uut, snk)
self.tb.run()
# check data
res = np.array(snk.data())
self.assertComplexTuplesAlmostEqual(ref, res)
def test_003 (self):
# Test that block stops when interacting with streaming interface
port = str(random.Random().randint(0, 30000) + 10000)
srcdata = (0x73, 0x75, 0x63, 0x68, 0x74, 0x65, 0x73, 0x74, 0x76, 0x65, 0x72, 0x79, 0x70, 0x61, 0x73, 0x73)
tag_dict = {"offset": 0}
tag_dict["key"] = pmt.intern("len")
tag_dict["value"] = pmt.from_long(8)
tag1 = gr.python_to_tag(tag_dict)
tag_dict["offset"] = 8
tag2 = gr.python_to_tag(tag_dict)
tags = [tag1, tag2]
src = blocks.vector_source_b(srcdata, False, 1, tags)
ts_to_pdu = blocks.tagged_stream_to_pdu(blocks.byte_t, "len")
pdu_send = blocks.socket_pdu("UDP_CLIENT", "localhost", "4141")
#pdu_recv = blocks.socket_pdu("UDP_SERVER", "localhost", port)
pdu_to_ts = blocks.pdu_to_tagged_stream(blocks.byte_t, "len")
head = blocks.head(gr.sizeof_char, 10)
sink = blocks.vector_sink_b(1)
self.tb.connect(src, ts_to_pdu)
self.tb.msg_connect(ts_to_pdu, "pdus", pdu_send, "pdus")
# a UDP socket connects pdu_send to pdu_recv
# TODO: test that the recv socket can be destroyed from downstream
# that signals DONE. Also that we get the PDUs we sent
#self.tb.msg_connect(pdu_recv, "pdus", pdu_to_ts, "pdus")
#self.tb.connect(pdu_to_ts, head, sink)
self.tb.run()
def test14(self):
const = self.MAXINT32 - 1
x_pmt = pmt.from_long(const)
s = pmt.serialize_str(x_pmt)
deser = pmt.deserialize_str(s)
self.assertTrue(pmt.equal(x_pmt, deser))
self.assertEqual(const,pmt.to_long(deser))
def test_002_with_offset (self):
""" Standard test, carrier offset """
fft_len = 16
tx_symbols = list(range(1, 16));
tx_symbols = (0, 0, 1, 1j, 2, 3, 0, 0, 0, 0, 0, 0, 4, 5, 2j, 6,
0, 0, 7, 8, 3j, 9, 0, 0, 0, 0, 0, 0, 10, 4j, 11, 12,
0, 0, 13, 1j, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 2j, 0)
carr_offset = 1 # Compare this with tx_symbols from the previous test
expected_result = tuple(range(1, 16)) + (0, 0, 0)
occupied_carriers = ((1, 3, 4, 11, 12, 14), (1, 2, 4, 11, 13, 14),)
n_syms = len(tx_symbols) // fft_len
offsettag = gr.tag_t()
offsettag.offset = 0
offsettag.key = pmt.string_to_symbol("ofdm_sync_carr_offset")
offsettag.value = pmt.from_long(carr_offset)
src = blocks.vector_source_c(tx_symbols, False, fft_len, (offsettag,))
sink = blocks.tsb_vector_sink_c(tsb_key=self.tsb_key)
serializer = digital.ofdm_serializer_vcc(
fft_len,
occupied_carriers,
self.tsb_key,
"", 0,
"ofdm_sync_carr_offset",
False
)
self.tb.connect(src, blocks.stream_to_tagged_stream(gr.sizeof_gr_complex, fft_len, n_syms, self.tsb_key), serializer, sink)
self.tb.run ()
self.assertEqual(sink.data()[0], expected_result)
self.assertEqual(len(sink.tags()), 1)
def test_001_t (self):
"""
First header: Packet length 4, packet num 0
Second header: Packet 2, packet num 1
Third header: Invalid (parity bit does not check) (would be len 4, num 2)
"""
encoded_headers = (
# | Number of bytes | Packet number | Parity
0, 0, 1, 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, 0, 0, 0,
0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0
)
packet_len_tagname = "packet_len"
random_tag = gr.tag_t()
random_tag.offset = 5
random_tag.key = pmt.string_to_symbol("foo")
random_tag.value = pmt.from_long(42)
src = blocks.vector_source_b(encoded_headers, tags=(random_tag,))
parser = digital.packet_headerparser_b(32, packet_len_tagname)
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(), 3)
msg1 = pmt.to_python(sink.get_message(0))
msg2 = pmt.to_python(sink.get_message(1))
msg3 = pmt.to_python(sink.get_message(2))
self.assertEqual(msg1, {'packet_len': 4, 'packet_num': 0, 'foo': 42})
self.assertEqual(msg2, {'packet_len': 2, 'packet_num': 1})
self.assertEqual(msg3, False)
def test_001_t2 (self):
"""
pretty simple (same as before, but odd fft len)
"""
fft_len = 5
tx_symbols = (1, 2, 3)
# ^ this gets mapped to the DC carrier because occupied_carriers[0][0] == 0
occupied_carriers = ((0, 1, 2),)
pilot_carriers = ((-2,),)
pilot_symbols = ((1j,),)
expected_result = (1j, 0, 1, 2, 3)
# ^ DC carrier
tag_name = "len"
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(len(tx_symbols))
src = blocks.vector_source_c(tx_symbols, False, 1, (tag,))
alloc = digital.ofdm_carrier_allocator_cvc(fft_len,
occupied_carriers,
pilot_carriers,
pilot_symbols, (),
tag_name)
sink = blocks.vector_sink_c(fft_len)
self.tb.connect(src, alloc, sink)
self.tb.run ()
self.assertEqual(sink.data(), expected_result)
def work(self, input_items, output_items):
if self.eof:
return -1
out = output_items[0]
self.add_item_tag(0, self.nitems_written(0), pmt.intern("image_width"), pmt.from_long(self.image_width))
self.add_item_tag(0, self.nitems_written(0), pmt.intern("line_num"), pmt.from_long(self.line_num))
out[:self.image_width] = self.image_data[self.image_width*self.line_num: self.image_width*(1+self.line_num)]
self.line_num += 1
if self.line_num >= self.image_height:
self.line_num = 0
if self.repeatmode == 0:
self.eof = True
if self.repeatmode == 2:
self.load_image()
return self.image_width
def test_002_t (self):
"""
same, but using negative carrier indices
"""
fft_len = 6
tx_symbols = (1, 2, 3)
pilot_symbols = ((1j,),)
occupied_carriers = ((-1, 1, 2),)
pilot_carriers = ((3,),)
expected_result = (1j, 0, 1, 0, 2, 3)
tag_name = "len"
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(len(tx_symbols))
src = blocks.vector_source_c(tx_symbols, False, 1, (tag,))
alloc = digital.ofdm_carrier_allocator_cvc(fft_len,
occupied_carriers,
pilot_carriers,
pilot_symbols, (),
tag_name)
sink = blocks.vector_sink_c(fft_len)
self.tb.connect(src, alloc, sink)
self.tb.run ()
self.assertEqual(sink.data(), expected_result)
def test_001b_shifted (self):
""" Same as before, but shifted, because that's the normal mode in OFDM Rx """
fft_len = 16
tx_symbols = (
0, 0, 0, 0, 0, 0, 1, 2, 0, 3, 4, 5, 0, 0, 0, 0,
0, 0, 0, 0, 6, 1j, 7, 8, 0, 9, 10, 1j, 11, 0, 0, 0,
0, 0, 0, 0, 0, 12, 13, 14, 0, 15, 16, 17, 0, 0, 0, 0,
)
expected_result = tuple(range(18))
occupied_carriers = ((13, 14, 15, 1, 2, 3), (-4, -2, -1, 1, 2, 4),)
n_syms = len(tx_symbols)/fft_len
tag_name = "len"
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(n_syms)
src = blocks.vector_source_c(tx_symbols, False, fft_len, (tag,))
serializer = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, tag_name)
sink = blocks.vector_sink_c()
self.tb.connect(src, serializer, sink)
self.tb.run ()
self.assertEqual(sink.data(), expected_result)
self.assertEqual(len(sink.tags()), 1)
result_tag = sink.tags()[0]
self.assertEqual(pmt.symbol_to_string(result_tag.key), tag_name)
self.assertEqual(pmt.to_long(result_tag.value), n_syms * len(occupied_carriers[0]))
def test_0010_tag_propagation (self):
""" Make sure tags on the CRC aren't lost. """
# Data with precalculated CRC
data = (
0, 1, 2, 3, 4, 5, 6, 7, 8,
0, 1, 0, 0, 0, 0, 0, 0,
1, 1, 0, 0, 0, 0, 1, 0,
1, 0, 0, 0, 0, 1, 1, 1,
0, 0, 1, 1, 1, 1, 0, 1
) # 2, 67, 225, 188
testtag = gr.tag_t()
testtag.offset = len(data)-1
testtag.key = pmt.string_to_symbol('tag1')
testtag.value = pmt.from_long(0)
src = blocks.vector_source_b(data, False, 1, (testtag,))
crc_check = digital.crc32_bb(True, self.tsb_key, False)
sink = blocks.tsb_vector_sink_b(tsb_key=self.tsb_key)
self.tb.connect(
src,
blocks.stream_to_tagged_stream(gr.sizeof_char, 1, len(data), self.tsb_key),
crc_check,
sink
)
self.tb.run()
self.assertEqual([len(data)-33,], [tag.offset for tag in sink.tags() if pmt.symbol_to_string(tag.key) == 'tag1'])
def test_with_tags_2s_rolloff(self):
" With tags and a 2-sample rolloff "
fft_len = 8
cp_len = 2
tag_name = "ts_last"
expected_result = [
7.0 / 2,
8,
1,
2,
3,
4,
5,
6,
7,
8, # 1.0/2
7.0 / 2 + 1.0 / 2,
8,
1,
2,
3,
4,
5,
6,
7,
8,
1.0 / 2
]
tag2 = gr.tag_t()
tag2.offset = 1
tag2.key = pmt.string_to_symbol("random_tag")
tag2.value = pmt.from_long(42)
src = blocks.vector_source_c(
list(range(1, fft_len + 1)) * 2, False, fft_len, (tag2, ))
cp = digital.ofdm_cyclic_prefixer(fft_len, fft_len + cp_len, 2,
tag_name)
sink = blocks.tsb_vector_sink_c(tsb_key=tag_name)
self.tb.connect(
src,
blocks.stream_to_tagged_stream(gr.sizeof_gr_complex, fft_len, 2,
tag_name), cp, sink)
self.tb.run()
self.assertEqual(sink.data()[0], expected_result)
tags = [gr.tag_to_python(x) for x in sink.tags()]
tags = sorted([(x.offset, x.key, x.value) for x in tags])
expected_tags = [(fft_len + cp_len, "random_tag", 42)]
self.assertEqual(tags, expected_tags)
def test_002_crc_equal (self):
""" Go through CRC set / CRC check and make sure the output
is the same as the input. """
data = (0, 1, 2, 3, 4, 5, 6, 7, 8)
tag_name = "len"
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(len(data))
src = blocks.vector_source_b(data, False, 1, (tag,))
crc = digital.crc32_bb(False, tag_name)
crc_check = digital.crc32_bb(True, tag_name)
sink = blocks.vector_sink_b()
self.tb.connect(src, crc, crc_check, sink)
self.tb.run()
# Check that the packets after crc_check are the same as input.
self.assertEqual(data, sink.data())
def work(self, input_items, output_items):
"""example: multiply with constant"""
if np.any(input_items[0][:] > 0):
for i in range(1, len(input_items[0])):
if (self.prev == 0) and (input_items[0][i] == 1):
self.example_param = 1
if (self.prev == 1):
self.example_param = self.example_param + 1
if (self.prev == 1 and input_items[0][i] == 0):
sys.stdout.write("%i: %i \n" %
(self.chan, self.example_param))
self.message_port_pub(pmt.intern('msg_out'),
pmt.from_long(self.chan))
self.prev = input_items[0][i]
#output_items[0][:] = self.example_param
return len(input_items[0])
def test_004_fail (self):
""" Corrupt the data and make sure it fails CRC test. """
data = (0, 1, 2, 3, 4, 5, 6, 7)
tag_name = "len"
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(len(data))
src = blocks.vector_source_b(data, False, 1, (tag,))
crc = digital.crc32_bb(False, tag_name)
crc_check = digital.crc32_bb(True, tag_name)
corruptor = blocks.add_const_bb(1)
sink = blocks.vector_sink_b()
self.tb.connect(src, crc, corruptor, crc_check, sink)
self.tb.run()
# crc_check will drop invalid packets
self.assertEqual(len(sink.data()), 0)
def test_001c_carrier_offset_no_cp(self):
"""
Same as before, but put a carrier offset in there
"""
fft_len = 8
cp_len = 0
n_syms = 1
carr_offset = 1
occupied_carriers = ((-2, -1, 1, 2), )
tx_data = (
0,
0,
0,
-1j,
-1j,
0,
-1j,
-1j,
)
# The rx'd signal is shifted
rx_expected = (0, 0, 1, 1, 0, 1, 1, 0) * n_syms
equalizer = digital.ofdm_equalizer_static(fft_len, occupied_carriers)
chan_tag = gr.tag_t()
chan_tag.offset = 0
chan_tag.key = pmt.string_to_symbol("ofdm_sync_chan_taps")
# Note: this is shifted to the correct position!
chan_tag.value = pmt.init_c32vector(fft_len,
(0, 0, -1j, -1j, 0, -1j, -1j, 0))
offset_tag = gr.tag_t()
offset_tag.offset = 0
offset_tag.key = pmt.string_to_symbol("ofdm_sync_carr_offset")
offset_tag.value = pmt.from_long(carr_offset)
src = blocks.vector_source_c(tx_data, False, fft_len,
(chan_tag, offset_tag))
eq = digital.ofdm_frame_equalizer_vcvc(equalizer.base(), cp_len,
self.tsb_key)
sink = blocks.tsb_vector_sink_c(fft_len, tsb_key=self.tsb_key)
self.tb.connect(
src,
blocks.stream_to_tagged_stream(gr.sizeof_gr_complex, fft_len,
n_syms, self.tsb_key), eq, sink)
self.tb.run()
# Check data
self.assertComplexTuplesAlmostEqual(rx_expected,
sink.data()[0],
places=4)
def valueChanged(self, new_value):
if int(self.scaleFactor) != 1:
new_value = new_value * self.scaleFactor
if self.varCallback is not None:
self.varCallback(new_value)
if self.isFloat:
self.message_port_pub(
pmt.intern("value"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.from_double(new_value)))
else:
self.message_port_pub(
pmt.intern("value"),
pmt.cons(pmt.intern(self.outputmsgname),
pmt.from_long(new_value)))
def work(self, input_items, output_items):
out = output_items[0]
slpack = self._slClient.slconn.collect()
try:
seqnum = slpack.getSequenceNumber()
trace = slpack.getTrace()
except:
out[:] = []
return 0
# print "sending slpack(id:%d): %d samples, len(out)=%d" % \
# (seqnum, len(trace.data), len(out))
out[:len(trace.data)] = numpy.float32(trace.data)
# https://gnuradio.org/doc/doxygen/page_python_blocks.html
# https://github.com/guruofquality/grextras/wiki/Blocks-Coding-Guide
# add_item_tag(which_output, abs_offset, key, value, srcid)
# add a packet length tag
abs_offset = self.nitems_written + 0
key = pmt.string_to_symbol("packet_len")
value = pmt.from_long(len(trace.data))
srcid = pmt.string_to_symbol(self._channel)
self.add_item_tag(0, abs_offset, key, value, srcid)
# add a tag to manage time
abs_offset = self.nitems_written + 0
key = pmt.string_to_symbol("rx_time")
value = pmt.from_double(trace.stats['starttime'].timestamp)
srcid = pmt.string_to_symbol(self._channel)
self.add_item_tag(0, abs_offset, key, value, srcid)
# print "starttime ", trace.stats['starttime'].timestamp
# add a tag to manage sample rate change
abs_offset = self.nitems_written + 0
key = pmt.string_to_symbol("rx_rate")
fech = 1. / trace.stats['delta']
value = pmt.from_double(fech)
srcid = pmt.string_to_symbol(self._channel)
self.add_item_tag(0, abs_offset, key, value, srcid)
# print "fech ", 1./trace.stats['delta']
self.samp_rate = fech
self.nitems_written += len(trace.data)
return len(trace.data)
def newValue(self, curValue, curIndex):
p_val = pmt.from_float(curValue)
p_index = pmt.from_long(curIndex)
if curValue != self.lastValue:
try:
self.varCallback(curValue)
except:
pass
self.message_port_pub(pmt.intern("value"),
pmt.cons(pmt.intern("value"), p_val))
self.lastValue = curValue
self.message_port_pub(pmt.intern("index"),
pmt.cons(pmt.intern("index"), p_index))
def test_001_t(self):
n_frames = 20
timeslots = 9
subcarriers = 128
active_subcarriers = 110
cp_len = subcarriers // 2
smap = get_subcarrier_map(subcarriers, active_subcarriers)
seed = 4711
ftype = 'rrc'
falpha = .5
tag_key = 'frame_start'
preamble, x_preamble = mapped_preamble(seed, ftype, falpha, active_subcarriers, subcarriers, smap, 2, cp_len, cp_len // 2)
block_len = timeslots * subcarriers
offset = len(preamble) + cp_len
frame_len = len(preamble) + timeslots * subcarriers + cp_len
data = np.array([], dtype=complex)
ref = np.array([], dtype=complex)
tags = []
print('frame_len: ', frame_len)
for i in range(n_frames):
d_block = modulate_mapped_gfdm_block(get_random_qpsk(timeslots * active_subcarriers), timeslots, subcarriers, active_subcarriers, 2, falpha)
frame = pinch_cp_add_block(d_block, timeslots, subcarriers, cp_len, cp_len // 2)
frame = np.concatenate((preamble, frame))
r = frame[offset:offset + block_len]
ref = np.concatenate((ref, r))
tag = gr.tag_t()
tag.key = pmt.string_to_symbol(tag_key)
tag.offset = len(data)
tag.srcid = pmt.string_to_symbol('qa')
tag.value = pmt.from_long(block_len)
tags.append(tag)
data = np.concatenate((data, frame))
src = blocks.vector_source_c(data, False, 1, tags)
cp_rm = gfdm.remove_prefix_cc(frame_len, block_len, offset, tag_key)
snk = blocks.vector_sink_c()
self.tb.connect(src, cp_rm, snk)
self.tb.run()
# # check data
res = np.array(snk.data())
tags = snk.tags()
self.assertComplexTuplesAlmostEqual(res, ref, 5)
def work(self, input_items, output_items):
# there has to be a better way to write this function. do that later
s = input_items[0][0]
l = input_items[1][0]
sig = input_items[2][0]
wndw = [1] * 161
wndw[0] = 0.5
wndw[160] = 0.5
sig_wndw = [1] * 81
sig_wndw[0] = 0.5
sig_wndw[80] = 0.5
# SHORT FIELD
s = self.periodic_extend(s, 161)
s = self.window(s, wndw)
# LONG FIELD
l = self.periodic_extend(l, len(l) * 2)
end_val = l[0]
l = self.cyclic_extend(l, len(l) / 4)
l = np.append(l, [end_val])
l = self.window(l, wndw)
# SIGNAL FIELD
end_val = sig[0]
sig = self.cyclic_extend(sig, len(sig) / 4)
sig = np.append(sig, [end_val])
sig = self.window(sig, sig_wndw)
# COMBINING PARTS
combined = np.array([], dtype=np.complex64)
combined = np.append(combined, s[:-1])
combined = np.append(combined, [s[-1] + l[0]])
combined = np.append(combined, l[1:-1])
combined = np.append(combined, [l[-1] + sig[0]])
combined = np.append(combined, sig[1:])
self.add_item_tag(0,
self.nitems_written(0) + 1, pmt.intern("packet_len"),
pmt.from_long(len(combined)))
out = output_items[0]
out[:] = combined
return len(output_items[0])
def test_001_basic_io(self):
self.tb.start()
# provide two non PDU inputs and one PDU input
self.add_sys_time.to_basic_block()._post(
pmt.intern("pdu"), pmt.intern("BAD PDU"))
self.add_sys_time.to_basic_block()._post(pmt.intern("pdu"),
pmt.cons(pmt.from_long(4), pmt.PMT_NIL))
self.add_sys_time.to_basic_block()._post(pmt.intern("pdu"),
pmt.cons(pmt.make_dict(), pmt.init_f32vector(1, [0.0])))
self.waitFor(lambda: self.debug.num_messages() >=
1, timeout=1.0, poll_interval=0.01)
self.tb.stop()
self.tb.wait()
# make sure we got one message and it has a systime key
self.assertEqual(1, self.debug.num_messages())
self.assertTrue(pmt.dict_has_key(
pmt.car(self.debug.get_message(0)), pmt.intern('systime')))
def test_001_t(self):
"""
test 256 bit packet
"""
# set up fg
data_in = range(256) # np.random.randint(0, 2, size=256)
key = pmt.intern("len_tag")
val = pmt.from_long(256)
tag = gr.tag_utils.python_to_tag((0, key, val))
self.src = blocks.vector_source_f(data_in, False, 1, [tag])
self.deintlvr = lpwan.dsss_deinterleaver_ff("len_tag")
self.snk = blocks.vector_sink_f(1)
self.tb.connect(self.src, self.deintlvr, self.snk)
self.tb.run()
# check data
self.assertFloatTuplesAlmostEqual(dsss_const.intlvr_seq_256,
self.snk.data()[0:256])
def timer_tick(self):
cmd = pmt.make_dict()
if self.count == 0:
cmd = pmt.dict_add(cmd, pmt.intern('chan'),
pmt.to_pmt(self.uhd_channel))
cmd = pmt.dict_add(cmd, pmt.intern('freq'),
pmt.to_pmt(self.freq_list[self.current_idx]))
self.count = 10
self.current_idx += 1
self.current_idx %= len(self.freq_list)
else:
self.count -= 1
cmd = pmt.dict_add(cmd, pmt.intern('tag'), pmt.from_long(1))
self.message_port_pub(pmt.intern(self.msg_port_name), cmd)
self.timer = Timer(self.switching_interval / 10.0, self.timer_tick)
self.timer.start()
def test_001(self):
#Test the overflow buffer in pdu_to_tagged_stream
src_data = [1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0]
src = blocks.pdu_to_tagged_stream(blocks.float_t)
snk = blocks.vector_sink_f()
self.tb.connect(src, snk)
port = pmt.intern("pdus")
msg = pmt.cons( pmt.PMT_NIL, pmt.init_f32vector(10, src_data))
src.to_basic_block()._post(port, msg)
src.to_basic_block()._post(pmt.intern("system"),
pmt.cons(pmt.intern("done"), pmt.from_long(1)))
self.tb.start()
self.tb.wait()
self.assertEqual(src_data, list(snk.data()) )
def setUp (self):
self.tb = gr.top_block()
# origin data is equal to timestamps
samp_rate = 1.
# data [lost items 0, 1, ..., 9], 10, 11, ..., 19
data_with_overflows = np.arange(10,20)
# Overflow tag
overflow = gr.tag_utils.python_to_tag(
(0, pmt.intern("overflows"), pmt.from_long(10), pmt.intern("src0")))
self.src = blocks.vector_source_c(data=data_with_overflows, repeat=False, vlen=1, tags=[overflow,])
self.dut = corrsounder.sequence_gate_cc(3, samp_rate)
self.dst = blocks.vector_sink_c(vlen=1)
self.tb.connect(self.src, self.dut, self.dst)
def test_002_t(self):
"""
once again, but this time add a sync word
"""
fft_len = 6
sync_word = (0, ) * fft_len
tx_symbols = (1, 2, 3, 4, 5, 6)
pilot_symbols = ((1j, ), )
occupied_carriers = ((-1, 1, 2), )
pilot_carriers = ((3, ), )
expected_result = sync_word + (1j, 0, 1, 0, 2, 3) + (1j, 0, 4, 0, 5, 6)
tag_name = "len"
tag = gr.tag_t()
tag.offset = 0
tag.key = pmt.string_to_symbol(tag_name)
tag.value = pmt.from_long(len(tx_symbols))
special_tag1 = gr.tag_t()
special_tag1.offset = 0
special_tag1.key = pmt.string_to_symbol("spam")
special_tag1.value = pmt.to_pmt(23)
special_tag2 = gr.tag_t()
special_tag2.offset = 4
special_tag2.key = pmt.string_to_symbol("eggs")
special_tag2.value = pmt.to_pmt(42)
src = blocks.vector_source_c(tx_symbols, False, 1,
(tag, special_tag1, special_tag2))
alloc = digital.ofdm_carrier_allocator_cvc(fft_len,
occupied_carriers,
pilot_carriers,
pilot_symbols,
sync_words=(sync_word, ),
len_tag_key=tag_name)
sink = blocks.vector_sink_c(fft_len)
self.tb.connect(src, alloc, sink)
self.tb.run()
self.assertEqual(sink.data(), expected_result)
tags = [gr.tag_to_python(x) for x in sink.tags()]
tags = sorted([(x.offset, x.key, x.value) for x in tags])
tags_expected = [
(0, 'len', 3),
(0, 'spam', 23),
(2, 'eggs', 42),
]
self.assertEqual(tags, tags_expected)
def make_tags(len_tag_key, debug_key, payload_key):
debug_tag = gr.tag_t()
debug_tag.key = pmt.intern(debug_key)
debug_tag.value = pmt.from_long(400)
debug_tag.offset = 5
remove_tag = gr.tag_t()
remove_tag.key = pmt.intern(payload_key)
remove_tag.value = pmt.from_long(400)
remove_tag.offset = 6
tags = [debug_tag, remove_tag]
tag1 = gr.tag_t()
tag1.key = pmt.intern(len_tag_key)
tag1.value = pmt.from_long(1)
tag1.offset = 0
tags.append(tag1)
tag2 = gr.tag_t()
tag2.key = pmt.intern(len_tag_key)
tag2.value = pmt.from_long(1)
tag2.offset = 1
tags.append(tag2)
tag3 = gr.tag_t()
tag3.key = pmt.intern(len_tag_key)
tag3.value = pmt.from_long(1)
tag3.offset = 2
tags.append(tag3)
tag4 = gr.tag_t()
tag4.key = pmt.intern(len_tag_key)
tag4.value = pmt.from_long(2)
tag4.offset = 3
tags.append(tag4)
tag5 = gr.tag_t()
tag5.key = pmt.intern(len_tag_key)
tag5.value = pmt.from_long(1)
tag5.offset = 5
tags.append(tag5)
tag6 = gr.tag_t()
tag6.key = pmt.intern(len_tag_key)
tag6.value = pmt.from_long(1)
tag6.offset = 6
tags.append(tag6)
return tuple(tags)
def variable_changed(self, value):
try:
if type(value) == float:
p = pmt.from_double(value)
elif type(value) == int:
p = pmt.from_long(value)
elif type(value) == bool:
p = pmt.from_bool(value)
elif type(value) == str:
p = pmt.intern(value)
else:
p = pmt.to_pmt(value)
self.message_port_pub(pmt.intern("msgout"),
pmt.cons(pmt.intern(self.pairname), p))
except Exception as e:
gr.log.error("Unable to convert " + repr(value) +
" to PDU, no message will be emitted (reason: %s)" % repr(e))
def test_001_t(self):
tags = []
# ref = []
nt = int(time.time() * 1e9)
for i in range(5):
d = [
i * 500,
pmt.intern('time'),
pmt.from_long(nt),
pmt.intern('testsource')
]
t = gr.tag_utils.python_to_tag(d)
tags.append(t)
debugger = latency.tag_timestamp_debug(8, "time", "tester")
src = blocks.vector_source_c([0.j] * 10000, False, 1, tags)
self.tb.connect(src, debugger)
# set up fg
self.tb.run()
def tearDown(self):
self.tb.msg_connect((self.encode, 'out'), (self.decode, 'in'))
self.tb.msg_connect((self.decode, 'out'), (self.dbg, 'store'))
pdu = pmt.cons(pmt.PMT_NIL, pmt.init_u8vector(len(self.data),
self.data))
self.encode.to_basic_block()._post(pmt.intern('in'), pdu)
self.encode.to_basic_block()._post(
pmt.intern('system'), pmt.cons(pmt.intern('done'),
pmt.from_long(1)))
self.tb.start()
self.tb.wait()
result = pmt.u8vector_elements(pmt.cdr(self.dbg.get_message(0)))
np.testing.assert_equal(self.data, result,
'Decoded data does not match encoder input')
self.tb = None
def test_001_simple (self):
""" Very simple functionality testing:
- static equalizer
- init channel state with all ones
- transmit all ones
- make sure we rx all ones
- Tag check: put in frame length tag and one other random tag,
make sure they're propagated
"""
fft_len = 8
equalizer = digital.ofdm_equalizer_static(fft_len)
n_syms = 3
tx_data = (1,) * fft_len * n_syms
chan_tag = gr.tag_t()
chan_tag.offset = 0
chan_tag.key = pmt.string_to_symbol("ofdm_sync_chan_taps")
chan_tag.value = pmt.init_c32vector(fft_len, (1,) * fft_len)
random_tag = gr.tag_t()
random_tag.offset = 1
random_tag.key = pmt.string_to_symbol("foo")
random_tag.value = pmt.from_long(42)
src = blocks.vector_source_c(tx_data, False, fft_len, (chan_tag, random_tag))
eq = digital.ofdm_frame_equalizer_vcvc(equalizer.base(), 0, self.tsb_key)
sink = blocks.tsb_vector_sink_c(fft_len, tsb_key=self.tsb_key)
self.tb.connect(
src,
blocks.stream_to_tagged_stream(gr.sizeof_gr_complex, fft_len, n_syms, self.tsb_key),
eq,
sink
)
self.tb.run ()
# Check data
self.assertEqual(tx_data, sink.data()[0])
# Check tags
tag_dict = dict()
for tag in sink.tags():
ptag = gr.tag_to_python(tag)
tag_dict[ptag.key] = ptag.value
expected_dict = {
'foo': 42
}
self.assertEqual(tag_dict, expected_dict)
def test_000(self):
num_msgs = 10
msg_interval = 1000
msg_list = []
for i in range(num_msgs):
msg_list.append(pmt.from_long(i))
# Create vector source with dummy data to trigger messages
src_data = []
for i in range(num_msgs * msg_interval):
src_data.append(float(i))
src = blocks.vector_source_f(src_data, False)
msg_gen = message_generator(msg_list, msg_interval)
msg_cons = message_consumer()
# Connect vector source to message gen
self.tb.connect(src, msg_gen)
# Connect message generator to message consumer
self.tb.msg_connect(msg_gen, 'out_port', msg_cons, 'in_port')
# Verify that the messgae port query functions work
self.assertEqual(
pmt.symbol_to_string(pmt.vector_ref(msg_gen.message_ports_out(),
0)), 'out_port')
self.assertEqual(
pmt.symbol_to_string(pmt.vector_ref(msg_cons.message_ports_in(),
0)), 'in_port')
# Run to verify message passing
self.tb.start()
# Wait for all messages to be sent
while msg_gen.msg_ctr < num_msgs:
time.sleep(0.5)
self.tb.stop()
self.tb.wait()
# Verify that the message consumer got all the messages
self.assertEqual(num_msgs, len(msg_cons.msg_list))
for i in range(num_msgs):
self.assertTrue(pmt.equal(msg_list[i], msg_cons.msg_list[i]))
def test_001_t(self):
# set up fg
Range = (2, 4, 22, 23)
velocity = (3, 12, 19, 19)
power = (10, 10, 10, 1) # last value is thrown away with merging peaks
pmt_time = pmt.list2(
pmt.string_to_symbol('rx_time'),
pmt.make_tuple(pmt.from_long(-1), pmt.from_double(0)))
pmt_axisx = pmt.list2(pmt.string_to_symbol('axis_x'),
pmt.init_f32vector(len(Range), Range))
pmt_axisy = pmt.list2(pmt.string_to_symbol('axis_y'),
pmt.init_f32vector(len(velocity), velocity))
pmt_power = pmt.list2(pmt.string_to_symbol('power'),
pmt.init_f32vector(len(power), power))
pmt_in = pmt.list4(pmt_time, pmt_axisx, pmt_axisy, pmt_power)
src = blocks.message_strobe(pmt_in, 300)
est = radar.estimator_ofdm('range', 30, (0, 40, -40, 10), 'velocity',
20, (-5, 5))
snk = blocks.message_debug()
self.tb.msg_connect(src, "strobe", est, "Msg in")
self.tb.msg_connect(est, "Msg out", snk, "store")
self.tb.msg_connect(est, "Msg out", snk, "print")
self.tb.start()
sleep(0.5)
self.tb.stop()
self.tb.wait()
# get ref data
ref_range = (0 + 40 * 2 / 15.0, 0 + 40 * 4 / 15.0,
-40 + 50 * (22 - 15) / 15.0)
ref_velocity = (-5 + 10 * 3 / 20.0, -5 + 10 * 12 / 20.0,
-5 + 10 * 19 / 20.0)
# check data
msg = snk.get_message(0)
val_range = pmt.f32vector_elements(pmt.nth(1, pmt.nth(1, msg)))
val_velocity = pmt.f32vector_elements(pmt.nth(1, pmt.nth(2, msg)))
print val_range
self.assertFloatTuplesAlmostEqual(val_velocity, ref_velocity, 4)
self.assertFloatTuplesAlmostEqual(val_range, ref_range, 4)
def work(self, input_items, output_items):
out = output_items[0]
produced = long(0)
# print(self.insert_tag)
# print(self.offset)
for o in range(0, len(out)):
if self.insert_tag:
self.add_item_tag(0, self.offset + long(o),
pmt.intern("packet_len"),
pmt.from_long(self.packet_len))
# print("a tag was inserted into the stream. offset: {}".format(self.offset))
self.insert_tag = False
if len(self.buffer) > 0:
out[o] = self.buffer[0]
self.buffer = self.buffer[1:]
produced += 1
self.offset += produced
return produced
def test_001_t(self):
data_in = [0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1]
data_expected_result = [0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1]
l = len(data_in)
key = pmt.intern("len_tag")
val = pmt.from_long(l)
tag = gr.tag_utils.python_to_tag([0, key, val])
# set up fg
self.src = blocks.vector_source_b(data_in, False, 1, [tag])
self.diffcoding = lpwan.dsss_diff_coding_bb("len_tag")
self.snk = blocks.vector_sink_b(1)
self.tb.connect(self.src, self.diffcoding, self.snk)
self.tb.run()
# check data
self.assertFloatTuplesAlmostEqual(data_expected_result,
self.snk.data())
def test_002_t(self):
"""
test 384 bit packet with interleaver
"""
# set up fg
data_in = np.random.randint(0, 2, size=384)
key = pmt.intern("len_tag")
val = pmt.from_long(384)
tag = gr.tag_utils.python_to_tag((0, key, val))
self.src = blocks.vector_source_b(data_in, False, 1, [tag])
self.intlvr = lpwan.dsss_interleaver_bb("len_tag")
self.cast = blocks.char_to_float()
self.deintlvr = lpwan.dsss_deinterleaver_ff("len_tag")
self.snk = blocks.vector_sink_f(1)
self.tb.connect(self.src, self.intlvr, self.cast, self.deintlvr,
self.snk)
self.tb.run()
# check data
self.assertFloatTuplesAlmostEqual(data_in, self.snk.data())
def onBtnClicked(self, pressed):
if type(self.msgValue) == int:
self.message_port_pub(
pmt.intern("pressed"),
pmt.cons(pmt.intern(self.msgName),
pmt.from_long(self.msgValue)))
elif type(self.msgValue) == float:
self.message_port_pub(
pmt.intern("pressed"),
pmt.cons(pmt.intern(self.msgName),
pmt.from_float(self.msgValue)))
elif type(self.msgValue) == str:
self.message_port_pub(
pmt.intern("pressed"),
pmt.cons(pmt.intern(self.msgName), pmt.intern(self.msgValue)))
elif type(self.msgValue) == bool:
self.message_port_pub(
pmt.intern("pressed"),
pmt.cons(pmt.intern(self.msgName),
pmt.from_bool(self.msgValue)))
def test_005_tag_propagation(self):
""" Make sure tags on the CRC aren't lost. """
# Data with precalculated CRC
data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 2, 67, 225, 188]
testtag = gr.tag_t()
testtag.offset = len(data) - 1
testtag.key = pmt.string_to_symbol('tag1')
testtag.value = pmt.from_long(0)
src = blocks.vector_source_b(data, False, 1, (testtag, ))
crc_check = digital.crc32_bb(True, self.tsb_key)
sink = blocks.tsb_vector_sink_b(tsb_key=self.tsb_key)
self.tb.connect(src,
blocks.stream_to_tagged_stream(
gr.sizeof_char, 1, len(data), self.tsb_key),
crc_check, sink)
self.tb.run()
self.assertEqual([len(data) - 5, ], [
tag.offset for tag in sink.tags()
if pmt.symbol_to_string(tag.key) == 'tag1'
])
def test_005_packet_len_tag (self):
""" Standard test """
fft_len = 16
tx_symbols = list(range(1, 16));
tx_symbols = (0, 1, 1j, 2, 3, 0, 0, 0, 0, 0, 0, 4, 5, 2j, 6, 0,
0, 7, 8, 3j, 9, 0, 0, 0, 0, 0, 0, 10, 4j, 11, 12, 0,
0, 13, 1j, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 2j, 0, 0)
expected_result = tuple(range(1, 16))
occupied_carriers = ((1, 3, 4, 11, 12, 14), (1, 2, 4, 11, 13, 14),)
n_syms = len(tx_symbols) // fft_len
packet_len_tsb_key = "packet_len"
tag2 = gr.tag_t()
tag2.offset = 0
tag2.key = pmt.string_to_symbol("packet_len")
tag2.value = pmt.from_long(len(expected_result))
src = blocks.vector_source_c(tx_symbols, False, fft_len, (tag2,))
serializer = digital.ofdm_serializer_vcc(fft_len, occupied_carriers, self.tsb_key, packet_len_tsb_key , 0, "", False)
sink = blocks.tsb_vector_sink_c(tsb_key=packet_len_tsb_key)
self.tb.connect(src, blocks.stream_to_tagged_stream(gr.sizeof_gr_complex, fft_len, n_syms, self.tsb_key), serializer, sink)
self.tb.run ()
self.assertEqual(sink.data()[0], expected_result)
def addStatus(self, key, value):
if isinstance(value, (int, long)):
self.message = pmt.dict_add(self.message,
pmt.string_to_symbol(key),
pmt.from_long(value))
elif isinstance(value, basestring):
self.message = pmt.dict_add(self.message,
pmt.string_to_symbol(key),
pmt.string_to_symbol(value))
elif isinstance(value, float):
self.message = pmt.dict_add(self.message,
pmt.string_to_symbol(key),
pmt.from_double(value))
elif isinstance(value, (tuple)):
self.message = pmt.dict_add(self.message,
pmt.string_to_symbol(key),
pmt.init_u16vector(2, value))
elif isinstance(value, (list)):
self.message = pmt.dict_add(self.message,
pmt.string_to_symbol(key),
pmt.init_u16vector(2, value))
