diff options
Diffstat (limited to 'gr-uhd/examples/multi-antenna/multi_fft.py')
| -rwxr-xr-x | gr-uhd/examples/multi-antenna/multi_fft.py | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/gr-uhd/examples/multi-antenna/multi_fft.py b/gr-uhd/examples/multi-antenna/multi_fft.py deleted file mode 100755 index d4c878c84..000000000 --- a/gr-uhd/examples/multi-antenna/multi_fft.py +++ /dev/null @@ -1,152 +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 gr, eng_notation -from gnuradio import uhd -from gnuradio.eng_option import eng_option -from gnuradio import eng_notation -from gnuradio import optfir -from optparse import OptionParser -from gnuradio.wxgui import stdgui2, fftsink2, waterfallsink2 -from gnuradio.wxgui import scopesink2, form, slider -import wx -import time -import os.path -import sys - -# required FPGA that can do 4 rx channels. - -class my_graph(stdgui2.std_top_block): - - def __init__(self, frame, panel, vbox, argv): - stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv) - - self.frame = frame - self.panel = panel - - parser = OptionParser (option_class=eng_option) - parser.add_option("-a", "--address", type="string", - default="addr=192.168.10.2", - help="Address of UHD device, [default=%default]") - parser.add_option("-A", "--antenna", type="string", default=None, - help="select Rx Antenna where appropriate") - parser.add_option("-s", "--samp-rate", type="eng_float", default=1e6, - help="set sample rate (bandwidth) [default=%default]") - parser.add_option("-f", "--freq", type="eng_float", default=None, - help="set frequency to FREQ", metavar="FREQ") - parser.add_option("-g", "--gain", type="eng_float", default=None, - help="set gain in dB (default is midpoint)") - parser.add_option("-F", "--filter", action="store_true", default=True, - help="Enable channel filter") - parser.add_option("-N", "--nchans", type="int", default=1, - help="set number of channels (default=%default)") - (options, args) = parser.parse_args() - - if len(args) != 0: - parser.print_help() - raise SystemExit - - self.nchans = options.nchans - - if options.filter: - sw_decim = 4 - else: - sw_decim = 1 - - self.u = uhd.usrp_source(device_addr=options.address, - io_type=uhd.io_type.COMPLEX_FLOAT32, - num_channels=self.nchans) - self.u.set_samp_rate(options.samp_rate) - input_rate = self.u.get_samp_rate() - - if options.gain is None: - # if no gain was specified, use the mid-point in dB - g = self.u.get_gain_range() - options.gain = float(g.start()+g.stop())/2 - - if options.freq is None: - # if no freq was specified, use the mid-point - r = self.u.get_freq_range() - options.freq = float(r.start()+r.stop())/2 - - self.set_gain(options.gain) - self.set_freq(options.freq) - - #if self.u.nddcs() < nchan: - # sys.stderr.write('This code requires an FPGA build with %d DDCs. This FPGA has only %d.\n' % ( - # nchan, self.u.nddcs())) - # raise SystemExit - - #if (len (self.subdev) < 4 or - # self.u.db(0, 0).dbid() != usrp_dbid.BASIC_RX or - # self.u.db(0, 0).dbid() != usrp_dbid.BASIC_RX): - # sys.stderr.write('This code requires a Basic Rx board on Sides A & B\n') - # sys.exit(1) - - # deinterleave four channels from FPGA - di = gr.deinterleave(gr.sizeof_gr_complex) - - self.connect(self.u, di) - - # taps for channel filter - chan_filt_coeffs = optfir.low_pass (1, # gain - input_rate, # sampling rate - 80e3, # passband cutoff - 115e3, # stopband cutoff - 0.1, # passband ripple - 60) # stopband attenuation - #print len(chan_filt_coeffs) - - for i in range(self.nchans): - scope = fftsink2.fft_sink_c(panel, sample_rate=input_rate/sw_decim, - title="Input %d" % (i,), - ref_level=80, y_per_div=20) - vbox.Add(scope.win, 10, wx.EXPAND) - - if options.filter: - chan_filt = gr.fir_filter_ccf(sw_decim, chan_filt_coeffs) - self.connect((di, i), chan_filt, scope) - else: - self.connect((di, i), scope) - - def set_gain(self, gain): - for i in range(self.nchans): - self.u.set_gain(gain, i) - - - def set_freq(self, target_freq): - for i in range(self.nchans): - r = self.u.set_center_freq(target_freq, 0) - - if r: - return True - else: - print "set_freq: failed to set subdev[%d] freq to %f" % \ - (i, target_freq) - return False - -def main (): - app = stdgui2.stdapp(my_graph, "Multi Scope", nstatus=1) - app.MainLoop() - -if __name__ == '__main__': - main () |