diff options
Diffstat (limited to 'src/python/gsm_findfcch.py')
| -rwxr-xr-x | src/python/gsm_findfcch.py | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/src/python/gsm_findfcch.py b/src/python/gsm_findfcch.py deleted file mode 100755 index 2050d33..0000000 --- a/src/python/gsm_findfcch.py +++ /dev/null @@ -1,108 +0,0 @@ -#!/usr/bin/env python -#!/usr/bin/env python - -from gnuradio import gr, gru, blks2 -#, gsm -from gnuradio.eng_option import eng_option -from optparse import OptionParser -from os import sys - -for extdir in ['../../debug/src/lib','../../debug/src/lib/.libs']: - if extdir not in sys.path: - sys.path.append(extdir) -import gsm - -class tune(gr.feval_dd): - def __init__(self, top_block): - gr.feval_dd.__init__(self) - self.top_block = top_block - # self.center_freq = 0 - def eval(self, freq_offet): - # self.center_freq = self.center_freq - freq_offet - self.top_block.set_frequency(freq_offet) - return freq_offet - -class gsm_receiver_first_blood(gr.top_block): - def __init__(self): - gr.top_block.__init__(self) - (options, args) = self._przetworz_opcje() - self.tune_callback = tune(self) - self.options = options - self.args = args - self._ustaw_taktowanie() - self.zrodlo = self._ustaw_zrodlo() - self.filtr = self._ustaw_filtr() - self.interpolator = self._ustaw_interpolator() - self.odbiornik = self._ustaw_odbiornik() - self.konwerter = self._ustaw_konwerter() - self.ujscie = self._ustaw_ujscie() - - self.connect(self.zrodlo, self.filtr, self.interpolator, self.odbiornik, self.konwerter, self.ujscie) -# self.connect(self.zrodlo, self.ujscie) - - def _ustaw_ujscie(self): - nazwa_pliku_wy = self.options.outputfile - ujscie = gr.file_sink(gr.sizeof_float, nazwa_pliku_wy) - return ujscie - - def _ustaw_zrodlo(self): - nazwa_pliku = self.options.inputfile - zrodlo = gr.file_source(gr.sizeof_gr_complex, nazwa_pliku, False) - return zrodlo - - def _ustaw_taktowanie(self): - options = self.options - clock_rate = 64e6 - self.clock_rate = clock_rate - self.input_rate = clock_rate / options.decim - self.gsm_symb_rate = 1625000.0 / 6.0 - self.sps = self.input_rate / self.gsm_symb_rate / self.options.osr - - def _ustaw_filtr(self): - filter_cutoff = 145e3 - filter_t_width = 10e3 - offset = 0 - #print "input_rate:", self.input_rate, "sample rate:", self.sps, " filter_cutoff:", filter_cutoff, " filter_t_width:", filter_t_width - filter_taps = gr.firdes.low_pass(1.0, self.input_rate, filter_cutoff, filter_t_width, gr.firdes.WIN_HAMMING) - filtr = gr.freq_xlating_fir_filter_ccf(1, filter_taps, offset, self.input_rate) - return filtr - - def _ustaw_konwerter(self): - v2s = gr.vector_to_stream(gr.sizeof_float, 142) - return v2s - - def _ustaw_interpolator(self): - interpolator = gr.fractional_interpolator_cc(0, self.sps) -# interpolator = blks2.rational_resampler_ccf(13, 6) - return interpolator - - def _ustaw_odbiornik(self): - odbiornik = gsm.receiver_cf(self.tune_callback, self.options.osr) - return odbiornik - - def _przetworz_opcje(self): - parser = OptionParser(option_class=eng_option) - parser.add_option("-d", "--decim", type="int", default=128, - help="Set USRP decimation rate to DECIM [default=%default]") - parser.add_option("-r", "--osr", type="int", default=4, - help="Oversampling ratio [default=%default]") - parser.add_option("-I", "--inputfile", type="string", default="cfile", - help="Input filename") - parser.add_option("-O", "--outputfile", type="string", default="cfile2.out", - help="Output filename") - (options, args) = parser.parse_args () - return (options, args) - - def set_frequency(self, center_freq): - self.filtr.set_center_freq(center_freq) - -def main(): - try: - gsm_receiver_first_blood().run() - except KeyboardInterrupt: - pass - -if __name__ == '__main__': - main() - - |