diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2012-11-06 12:25:58 -0500 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2012-11-06 12:27:40 -0500 |
| commit | 463b962fe280c5515947498b4d0f4fd3b5993662 (patch) | |
| tree | 1671d8bad8132113813cc8a9f1c14d0e1c16ef3c /gnuradio-core/src/examples | |
| parent | 55eb2dbfc38ce4287c7408bf9a87c6b56a618d1f (diff) | |
analog: Removing all squelch blocks from gnuradio-core.
Also updating some Python blocks and examples to properly pull from filter and analog.
Diffstat (limited to 'gnuradio-core/src/examples')
| -rwxr-xr-x | gnuradio-core/src/examples/tags/uhd_burst_detector.py | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/gnuradio-core/src/examples/tags/uhd_burst_detector.py b/gnuradio-core/src/examples/tags/uhd_burst_detector.py deleted file mode 100755 index 512fc715d7..0000000000 --- a/gnuradio-core/src/examples/tags/uhd_burst_detector.py +++ /dev/null @@ -1,116 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2011 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. -# -# GNU Radio is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -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, uhd_address, options): - - gr.top_block.__init__(self) - - self.uhd_addr = uhd_address - self.freq = options.freq - self.samp_rate = options.samp_rate - self.gain = options.gain - self.threshold = options.threshold - self.trigger = options.trigger - - self.uhd_src = uhd.single_usrp_source( - device_addr=self.uhd_addr, - stream_args=uhd.stream_args('fc32')) - - 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.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 - ## use squelch to detect energy - self.det = gr.simple_squelch_cc(self.threshold, 0.01) - ## convert to mag squared (float) - self.c2m = gr.complex_to_mag_squared() - ## average to debounce - self.avg = gr.single_pole_iir_filter_ff(0.01) - ## rescale signal for conversion to short - self.scale = gr.multiply_const_ff(2**16) - ## signal input uses shorts - self.f2s = gr.float_to_short() - - # Use file sink burst tagger to capture bursts - 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, self.det) - self.connect(self.det, self.c2m, self.avg, self.scale, self.f2s) - self.connect(self.f2s, (self.tagger, 1)) - - def set_samp_rate(self, samp_rate): - self.samp_rate = samp_rate - 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", "--samp-rate", type="eng_float", default=200000, - help="set USRP sample rate [default=%default]") - parser.add_option("-t", "--threshold", type="float", default=-60, - help="Set the detection power threshold (dBm) [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() - - uhd_addr = options.address - - tb = uhd_burst_detector(uhd_addr, options) - tb.run() |