diff options
Diffstat (limited to 'gnuradio-examples/python')
| -rw-r--r-- | gnuradio-examples/python/apps/Makefile.am | 4 | ||||
| -rwxr-xr-x | gnuradio-examples/python/pfb/channelize.py | 2 | ||||
| -rwxr-xr-x | gnuradio-examples/python/tags/test_file_tags.py | 29 | ||||
| -rwxr-xr-x | gnuradio-examples/python/tags/uhd_burst_detector.py | 98 |
4 files changed, 131 insertions, 2 deletions
diff --git a/gnuradio-examples/python/apps/Makefile.am b/gnuradio-examples/python/apps/Makefile.am index 620b9fd29..50fe75151 100644 --- a/gnuradio-examples/python/apps/Makefile.am +++ b/gnuradio-examples/python/apps/Makefile.am @@ -19,6 +19,8 @@ # Boston, MA 02110-1301, USA. # +include $(top_srcdir)/Makefile.common + SUBDIRS = hf_explorer hf_radio -EXTRA_DIST = README +EXTRA_DIST += README diff --git a/gnuradio-examples/python/pfb/channelize.py b/gnuradio-examples/python/pfb/channelize.py index 27d87e558..f845c05c6 100755 --- a/gnuradio-examples/python/pfb/channelize.py +++ b/gnuradio-examples/python/pfb/channelize.py @@ -36,7 +36,7 @@ class pfb_top_block(gr.top_block): # Create a set of taps for the PFB channelizer self._taps = gr.firdes.low_pass_2(1, self._fs, 475.50, 50, - attenuation_dB=10, window=gr.firdes.WIN_BLACKMAN_hARRIS) + attenuation_dB=100, window=gr.firdes.WIN_BLACKMAN_hARRIS) # Calculate the number of taps per channel for our own information tpc = scipy.ceil(float(len(self._taps)) / float(self._M)) diff --git a/gnuradio-examples/python/tags/test_file_tags.py b/gnuradio-examples/python/tags/test_file_tags.py new file mode 100755 index 000000000..4ff4549ef --- /dev/null +++ b/gnuradio-examples/python/tags/test_file_tags.py @@ -0,0 +1,29 @@ +#!/usr/bin/env python + +from gnuradio import gr +import scipy + +def main(): + data = scipy.arange(0, 32000, 1).tolist() + trig = 100*[0,] + 100*[1,] + + src = gr.vector_source_s(data, True) + trigger = gr.vector_source_s(trig, True) + + thr = gr.throttle(gr.sizeof_short, 10e3) + ann = gr.annotator_alltoall(1000000, gr.sizeof_short) + tagger = gr.burst_tagger(gr.sizeof_short) + + fsnk = gr.tagged_file_sink(gr.sizeof_short, 1) + + tb = gr.top_block() + tb.connect(src, thr, (tagger, 0)) + tb.connect(trigger, (tagger, 1)) + tb.connect(tagger, fsnk) + + tb.run() + +if __name__ == "__main__": + main() + + diff --git a/gnuradio-examples/python/tags/uhd_burst_detector.py b/gnuradio-examples/python/tags/uhd_burst_detector.py new file mode 100755 index 000000000..f8ebbe66a --- /dev/null +++ b/gnuradio-examples/python/tags/uhd_burst_detector.py @@ -0,0 +1,98 @@ +#!/usr/bin/env python + +from gnuradio import eng_notation +from gnuradio import gr +from gnuradio import uhd +from gnuradio import window +from gnuradio.eng_option import eng_option +from gnuradio.gr import firdes +from optparse import OptionParser + +class uhd_burst_detector(gr.top_block): + def __init__(self, frequency, sample_rate, + uhd_address="192.168.10.2", trigger=False): + + gr.top_block.__init__(self) + + self.freq = frequency + self.samp_rate = sample_rate + self.uhd_addr = uhd_address + self.gain = 32 + self.trigger = trigger + + self.uhd_src = uhd.single_usrp_source( + device_addr=self.uhd_addr, + io_type=uhd.io_type_t.COMPLEX_FLOAT32, + num_channels=1, + ) + + self.uhd_src.set_samp_rate(self.samp_rate) + self.uhd_src.set_center_freq(self.freq, 0) + self.uhd_src.set_gain(self.gain, 0) + + taps = firdes.low_pass_2(1, 1, 0.4, 0.1, 60) + self.chanfilt = gr.fir_filter_ccc(10, taps) + self.ann0 = gr.annotator_alltoall(100000, gr.sizeof_gr_complex) + self.tagger = gr.burst_tagger(gr.sizeof_gr_complex) + + # Dummy signaler to collect a burst on known periods + data = 1000*[0,] + 1000*[1,] + self.signal = gr.vector_source_s(data, True) + + # Energy detector to get signal burst + self.c2m = gr.complex_to_mag_squared() + self.iir = gr.single_pole_iir_filter_ff(0.0001) + self.sub = gr.sub_ff() + self.mult = gr.multiply_const_ff(32768) + self.f2s = gr.float_to_short() + self.fsnk = gr.tagged_file_sink(gr.sizeof_gr_complex, self.samp_rate) + + + ################################################## + # Connections + ################################################## + self.connect((self.uhd_src, 0), (self.tagger, 0)) + self.connect((self.tagger, 0), (self.fsnk, 0)) + + if self.trigger: + # Connect a dummy signaler to the burst tagger + self.connect((self.signal, 0), (self.tagger, 1)) + + else: + # Connect an energy detector signaler to the burst tagger + self.connect((self.uhd_src, 0), (self.c2m, 0)) + self.connect((self.c2m, 0), (self.sub, 0)) + self.connect((self.c2m, 0), (self.iir, 0)) + self.connect((self.iir, 0), (self.sub, 1)) + self.connect((self.sub, 0), (self.mult,0)) + self.connect((self.mult, 0), (self.f2s, 0)) + self.connect((self.f2s, 0), (self.tagger, 1)) + + def set_samp_rate(self, samp_rate): + self.samp_rate = samp_rate + self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate/10) + self.uhd_src_0.set_samp_rate(self.samp_rate) + +if __name__ == '__main__': + parser = OptionParser(option_class=eng_option, usage="%prog: [options]") + parser.add_option("-a", "--address", type="string", default="addr=192.168.10.2", + help="select address of the device [default=%default]") + #parser.add_option("-A", "--antenna", default=None, + # help="select Rx Antenna (only on RFX-series boards)") + parser.add_option("-f", "--freq", type="eng_float", default=450e6, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=0, + help="set gain in dB [default=%default]") + parser.add_option("-R", "--rate", type="eng_float", default=200000, + help="set USRP sample rate [default=%default]") + parser.add_option("-T", "--trigger", action="store_true", default=False, + help="Use internal trigger instead of detector [default=%default]") + (options, args) = parser.parse_args() + + frequency = options.freq + samp_rate = samp_rate = options.rate + uhd_addr = options.address + trigger = options.trigger + + tb = uhd_burst_detector(frequency, samp_rate, uhd_addr, trigger) + tb.run() |