1 files changed, 0 insertions, 130 deletions
diff --git a/src/demod/python/uhd-tetra_demod.py b/src/demod/python/uhd-tetra_demod.py
deleted file mode 100755
index ac49fb7..0000000
--- a/src/demod/python/uhd-tetra_demod.py
+++ /dev/null
@@ -1,130 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-import math
-from gnuradio import gr, gru, audio, eng_notation, blks2, optfir
-from gnuradio import uhd
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-
-# Load it locally or from the module
-try:
-    import cqpsk
-except:
-    from tetra_demod import cqpsk
-
-# accepts an input file in complex format 
-# applies frequency translation, resampling (interpolation/decimation)
-
-class my_top_block(gr.top_block):
-    def __init__(self, options):
-        gr.top_block.__init__(self)
-
-        # Create a UHD source
-        self._u = uhd.usrp_source(
-               device_addr=options.args,
-               io_type=uhd.io_type.COMPLEX_FLOAT32,
-               num_channels=1)
-
-        # Set the subdevice spec
-        if(options.spec):
-            self._u.set_subdev_spec(options.spec, 0)
-
-        # Set the antenna
-        if(options.antenna):
-            self._u.set_antenna(options.antenna, 0)
-
-        # Pick the lowest possible value for the input rate
-        supported_rates = self._u.get_samp_rates()
-        self._u.set_samp_rate(supported_rates.start())
-
-        sample_rate = self._u.get_samp_rate()
-        symbol_rate = 18000
-        sps = 2
-
-        # output rate will be 36,000
-        ntaps = 11 * sps
-        new_sample_rate = symbol_rate * sps
-
-        # Set receive daughterboard gain
-        if options.gain is None:
-            g = self._u.get_gain_range()
-            options.gain = float(g.stop()+g.start())/2
-            print "Using mid-point gain of", options.gain, "(", g.start(), "-", g.stop(), ")"
-        self._u.set_gain(options.gain)
-
-        # Set frequency (tune request takes lo_offset)
-        if(options.lo_offset is not None):
-            treq = uhd.tune_request(options.freq, options.lo_offset)
-        else:
-            treq = uhd.tune_request(options.freq)
-        tr = self._u.set_center_freq(treq)
-        if tr == None:
-            sys.stderr.write('Failed to set center frequency\n')
-            raise SystemExit, 1
-
-        channel_taps = gr.firdes.low_pass(1.0, sample_rate, options.low_pass, options.low_pass * 0.1, gr.firdes.WIN_HANN)
-
-        FILTER = gr.freq_xlating_fir_filter_ccf(1, channel_taps, options.calibration, sample_rate)
-
-        sys.stderr.write("sample rate: %d\n" %(sample_rate))
-
-        DEMOD = cqpsk.cqpsk_demod( samples_per_symbol = sps,
-                                 excess_bw=0.35,
-                                 costas_alpha=0.03,
-                                 gain_mu=0.05,
-                                 mu=0.05,
-                                 omega_relative_limit=0.05,
-                                 log=options.log,
-                                 verbose=options.verbose)
-
-        OUT = gr.file_sink(gr.sizeof_float, options.output_file)
-
-        r = float(sample_rate) / float(new_sample_rate)
-
-        INTERPOLATOR = gr.fractional_interpolator_cc(0, r)
-
-        self.connect(self._u, FILTER, INTERPOLATOR, DEMOD, OUT)
-
-def get_options():
-    parser = OptionParser(option_class=eng_option)
-    # usrp related settings
-    parser.add_option("-a", "--args", type="string", default="",
-                      help="UHD device address args, [default=%default]")
-    parser.add_option("", "--spec", type="string", default=None,
-                      help="Subdevice of UHD device where appropriate")
-    parser.add_option("-A", "--antenna", type="string", default=None,
-                      help="select Rx Antenna where appropriate")
-    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("", "--lo-offset", type="eng_float", default=None,
-                      help="set daughterboard LO offset to OFFSET [default=hw default]")
-
-    # demodulator related settings
-    parser.add_option("-c", "--calibration", type="int", default=0, help="freq offset")
-    parser.add_option("-l", "--log", action="store_true", default=False, help="dump debug .dat files")
-    parser.add_option("-L", "--low-pass", type="eng_float", default=25e3, help="low pass cut-off", metavar="Hz")
-    parser.add_option("-o", "--output-file", type="string", default="out.float", help="specify the bit output file")
-    parser.add_option("-v", "--verbose", action="store_true", default=False, help="dump demodulation data")
-
-    (options, args) = parser.parse_args()
-    if len(args) != 0:
-        parser.print_help()
-        raise SystemExit, 1
-
-    if options.freq is None:
-        parser.print_help()
-        sys.stderr.write('You must specify the frequency with -f FREQ\n');
-        raise SystemExit, 1
-
-    return (options)
-
-if __name__ == "__main__":
-    (options) = get_options()
-    tb = my_top_block(options)
-    try:
-        tb.run()
-    except KeyboardInterrupt:
-        tb.stop()