def test_003_t (self): # test cut frequency negative freq # set up fg test_len = 1000 samp_rate = 2000 freq1 = -200 freq2 = -205 ampl = 1 packet_len = test_len threshold = -100 samp_protect = 2 src1 = analog.sig_source_c(samp_rate, analog.GR_COS_WAVE, freq1, ampl*0.2) src2 = analog.sig_source_c(samp_rate, analog.GR_COS_WAVE, freq2, ampl) add = blocks.add_cc(); head = blocks.head(8,test_len) s2ts = blocks.stream_to_tagged_stream(8,1,packet_len,"packet_len") fft = radar.ts_fft_cc(packet_len) peak = radar.find_max_peak_c(samp_rate, threshold, samp_protect, (-200,200), True) debug = blocks.message_debug() self.tb.connect((src1,0), (add,0)) self.tb.connect((src2,0), (add,1)) self.tb.connect(add,head,s2ts,fft,peak) self.tb.msg_connect(peak,"Msg out",debug,"store") #self.tb.msg_connect(peak,"Msg out",debug,"print") self.tb.start() sleep(0.5) self.tb.stop() self.tb.wait() # check frequency in os_cfar message with given one msg = debug.get_message(0) self.assertAlmostEqual(freq1,pmt.f32vector_ref(pmt.nth(1,pmt.nth(1,msg)),0),8)
def test_001_t (self): # test on positive frequencies # set up fg test_len = 1000 samp_rate = 2000 freq = 200 ampl = 1 packet_len = test_len threshold = -100 samp_protect = 2 src = analog.sig_source_c(samp_rate, analog.GR_COS_WAVE, freq, ampl) head = blocks.head(8,test_len) s2ts = blocks.stream_to_tagged_stream(8,1,packet_len,"packet_len") fft = radar.ts_fft_cc(packet_len) peak = radar.find_max_peak_c(samp_rate, threshold, samp_protect, (0,0), False) debug = blocks.message_debug() self.tb.connect(src,head,s2ts,fft,peak) self.tb.msg_connect(peak,"Msg out",debug,"store") #self.tb.msg_connect(peak,"Msg out",debug,"print") self.tb.start() sleep(0.5) self.tb.stop() self.tb.wait() # check frequency in os_cfar message with given one msg = debug.get_message(0) self.assertAlmostEqual(freq,pmt.f32vector_ref(pmt.nth(1,pmt.nth(1,msg)),0),8)
def test_001_t (self): # run full fsk setup on high sample rates test_len = 2**19 packet_len = 2**19 min_output_buffer = packet_len*2 samp_rate = 5000000 center_freq = 2.45e9 Range = 50 velocity = 5 samp_per_freq = 1 blocks_per_tag = packet_len/2 freq_low = 0 freq_high = 1250000 amplitude = 1 samp_discard = 0 src = radar.signal_generator_fsk_c(samp_rate, samp_per_freq, blocks_per_tag, freq_low, freq_high, amplitude) src.set_min_output_buffer(min_output_buffer) head = blocks.head(8,test_len) head.set_min_output_buffer(min_output_buffer) sim = radar.static_target_simulator_cc((Range,),(velocity,),(1e20,),(0,),(0,),samp_rate,center_freq,1,False,False) sim.set_min_output_buffer(min_output_buffer) mult = blocks.multiply_conjugate_cc() mult.set_min_output_buffer(min_output_buffer) fft1 = radar.ts_fft_cc(packet_len/2) fft1.set_min_output_buffer(min_output_buffer) fft2 = radar.ts_fft_cc(packet_len/2) fft2.set_min_output_buffer(min_output_buffer) split = radar.split_fsk_cc(samp_per_freq,samp_discard) split.set_min_output_buffer(min_output_buffer) mult_conj = blocks.multiply_conjugate_cc() mult_conj.set_min_output_buffer(min_output_buffer) cfar = radar.find_max_peak_c(samp_rate/2,-120,0,(),False) cfar.set_min_output_buffer(min_output_buffer) est = radar.estimator_fsk(center_freq,freq_high-freq_low) res = radar.print_results() debug = blocks.message_debug() self.tb.connect(src,head,(mult,1)) self.tb.connect(head,sim,(mult,0)) self.tb.connect(mult,split) self.tb.connect((split,0),fft1) self.tb.connect((split,1),fft2) self.tb.connect(fft1,(mult_conj,0)) self.tb.connect(fft2,(mult_conj,1)) self.tb.connect(mult_conj,cfar) self.tb.msg_connect(cfar,'Msg out',est,'Msg in') self.tb.msg_connect(est,'Msg out',res,'Msg in') self.tb.msg_connect(est,'Msg out',debug,'store') self.tb.start() sleep(0.5) self.tb.stop() self.tb.wait() # check data msg = debug.get_message(0) #print "VELOCITY:", pmt.f32vector_ref(pmt.nth(1,(pmt.nth(1,msg))),0), velocity #print "RANGE:", pmt.f32vector_ref(pmt.nth(1,(pmt.nth(2,msg))),0), Range self.assertAlmostEqual( 1, velocity/pmt.f32vector_ref(pmt.nth(1,(pmt.nth(1,msg))),0), 1 ) # check velocity value self.assertAlmostEqual( 1, Range/pmt.f32vector_ref(pmt.nth(1,(pmt.nth(2,msg))),0), 1 ) # check range value
def test_001_t (self): # set up fg samp_cw = 2**14 samp_up = 2**14 samp_down = samp_up packet_len = samp_cw+samp_up+samp_down min_output_buffer = packet_len*2 test_len = 2*packet_len samp_rate = 10000000 push_power = False center_freq = 5.7e9 Range = 200 velocity = 50 freq_cw = 0 freq_sweep = samp_rate/2 amplitude = 1 src = radar.signal_generator_fmcw_c(samp_rate, samp_up, samp_down, samp_cw, freq_cw, freq_sweep, amplitude) src.set_min_output_buffer(min_output_buffer) head = blocks.head(8,test_len) head.set_min_output_buffer(min_output_buffer) sim = radar.static_target_simulator_cc((Range,),(velocity,),(1e16,),(0,),(0,),samp_rate,center_freq,1,False,False) sim.set_min_output_buffer(min_output_buffer) mult = blocks.multiply_conjugate_cc() mult.set_min_output_buffer(min_output_buffer) decim_fac = 2**4 resamp = filter.rational_resampler_ccc(1,decim_fac) resamp_tag = blocks.tagged_stream_multiply_length(8,'packet_len',1.0/float(decim_fac)) resamp_tag.set_min_output_buffer(min_output_buffer/(decim_fac)) packets = (samp_cw/(decim_fac), samp_up/(decim_fac), samp_down/(decim_fac)) split_cw = radar.split_cc(0,packets) split_up = radar.split_cc(1,packets) split_down = radar.split_cc(2,packets) split_cw.set_min_output_buffer(min_output_buffer/(decim_fac)) split_up.set_min_output_buffer(min_output_buffer/(decim_fac)) split_down.set_min_output_buffer(min_output_buffer/(decim_fac)) fft_cw = radar.ts_fft_cc(samp_cw/(decim_fac)) fft_up = radar.ts_fft_cc(samp_up/(decim_fac)) fft_down = radar.ts_fft_cc(samp_down/(decim_fac)) fft_cw.set_min_output_buffer(min_output_buffer/(decim_fac)) fft_up.set_min_output_buffer(min_output_buffer/(decim_fac)) fft_down.set_min_output_buffer(min_output_buffer/(decim_fac)) threshold = -300 samp_protect = 0 cfar_cw = radar.find_max_peak_c(samp_rate/(decim_fac), threshold, samp_protect, (0,0), False) cfar_up = radar.find_max_peak_c(samp_rate/(decim_fac), threshold, samp_protect, (0,0), False) cfar_down = radar.find_max_peak_c(samp_rate/(decim_fac), threshold, samp_protect, (0,0), False) est = radar.estimator_fmcw(samp_rate/(decim_fac), center_freq, freq_sweep, samp_up/(decim_fac), samp_down/(decim_fac), push_power) res = radar.print_results() debug = blocks.message_debug() self.tb.connect(src,head,(mult,0)) self.tb.connect(head,sim,(mult,1)) self.tb.connect(mult,resamp, resamp_tag) self.tb.connect(resamp_tag,split_cw, fft_cw, cfar_cw) self.tb.connect(resamp_tag,split_up, fft_up, cfar_up) self.tb.connect(resamp_tag,split_down, fft_down, cfar_down) self.tb.msg_connect(cfar_cw,'Msg out',est,'Msg in CW') self.tb.msg_connect(cfar_up,'Msg out',est,'Msg in UP') self.tb.msg_connect(cfar_down,'Msg out',est,'Msg in DOWN') self.tb.msg_connect(est,'Msg out',res,'Msg in') self.tb.msg_connect(est,'Msg out',debug,'store') # run fg self.tb.start() sleep(0.5) self.tb.stop() self.tb.wait() # check data msg = debug.get_message(0) self.assertGreater( velocity/pmt.f32vector_ref(pmt.nth(1,(pmt.nth(1,msg))),0), 0.8 ) # check velocity value self.assertGreater( Range/pmt.f32vector_ref(pmt.nth(1,(pmt.nth(2,msg))),0), 0.8 ) # check range value
def test_001_t(self):
# set up fg
samp_cw = 2**14
samp_up = 2**14
samp_down = samp_up
packet_len = samp_cw + samp_up + samp_down
min_output_buffer = packet_len * 2
test_len = 2 * packet_len
samp_rate = 10000000
push_power = False
center_freq = 5.7e9
Range = 200
velocity = 50
freq_cw = 0
freq_sweep = samp_rate / 2
amplitude = 1
src = radar.signal_generator_fmcw_c(samp_rate, samp_up, samp_down,
samp_cw, freq_cw, freq_sweep,
amplitude)
src.set_min_output_buffer(min_output_buffer)
head = blocks.head(8, test_len)
head.set_min_output_buffer(min_output_buffer)
sim = radar.static_target_simulator_cc(
(Range, ), (velocity, ), (1e16, ), (0, ), (0, ), samp_rate,
center_freq, 1, False, False)
sim.set_min_output_buffer(min_output_buffer)
mult = blocks.multiply_conjugate_cc()
mult.set_min_output_buffer(min_output_buffer)
decim_fac = 2**4
resamp = filter.rational_resampler_ccc(1, decim_fac)
resamp_tag = blocks.tagged_stream_multiply_length(
8, 'packet_len', 1.0 / float(decim_fac))
resamp_tag.set_min_output_buffer(min_output_buffer / (decim_fac))
packets = (samp_cw / (decim_fac), samp_up / (decim_fac),
samp_down / (decim_fac))
split_cw = radar.split_cc(0, packets)
split_up = radar.split_cc(1, packets)
split_down = radar.split_cc(2, packets)
split_cw.set_min_output_buffer(min_output_buffer / (decim_fac))
split_up.set_min_output_buffer(min_output_buffer / (decim_fac))
split_down.set_min_output_buffer(min_output_buffer / (decim_fac))
fft_cw = radar.ts_fft_cc(samp_cw / (decim_fac))
fft_up = radar.ts_fft_cc(samp_up / (decim_fac))
fft_down = radar.ts_fft_cc(samp_down / (decim_fac))
fft_cw.set_min_output_buffer(min_output_buffer / (decim_fac))
fft_up.set_min_output_buffer(min_output_buffer / (decim_fac))
fft_down.set_min_output_buffer(min_output_buffer / (decim_fac))
threshold = -300
samp_protect = 0
cfar_cw = radar.find_max_peak_c(samp_rate / (decim_fac), threshold,
samp_protect, (0, 0), False)
cfar_up = radar.find_max_peak_c(samp_rate / (decim_fac), threshold,
samp_protect, (0, 0), False)
cfar_down = radar.find_max_peak_c(samp_rate / (decim_fac), threshold,
samp_protect, (0, 0), False)
est = radar.estimator_fmcw(samp_rate / (decim_fac), center_freq,
freq_sweep, samp_up / (decim_fac),
samp_down / (decim_fac), push_power)
res = radar.print_results()
debug = blocks.message_debug()
self.tb.connect(src, head, (mult, 0))
self.tb.connect(head, sim, (mult, 1))
self.tb.connect(mult, resamp, resamp_tag)
self.tb.connect(resamp_tag, split_cw, fft_cw, cfar_cw)
self.tb.connect(resamp_tag, split_up, fft_up, cfar_up)
self.tb.connect(resamp_tag, split_down, fft_down, cfar_down)
self.tb.msg_connect(cfar_cw, 'Msg out', est, 'Msg in CW')
self.tb.msg_connect(cfar_up, 'Msg out', est, 'Msg in UP')
self.tb.msg_connect(cfar_down, 'Msg out', est, 'Msg in DOWN')
self.tb.msg_connect(est, 'Msg out', res, 'Msg in')
self.tb.msg_connect(est, 'Msg out', debug, 'store')
# run fg
self.tb.start()
sleep(0.5)
self.tb.stop()
self.tb.wait()
# check data
msg = debug.get_message(0)
self.assertGreater(velocity /
pmt.f32vector_ref(pmt.nth(1, (pmt.nth(1, msg))), 0),
0.8) # check velocity value
self.assertGreater(Range /
pmt.f32vector_ref(pmt.nth(1, (pmt.nth(2, msg))), 0),
0.8) # check range value