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Diffstat (limited to 'gr-noaa/apps/hrpt_demod.py')
| -rwxr-xr-x | gr-noaa/apps/hrpt_demod.py | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/gr-noaa/apps/hrpt_demod.py b/gr-noaa/apps/hrpt_demod.py deleted file mode 100755 index 38b4b2fe3..000000000 --- a/gr-noaa/apps/hrpt_demod.py +++ /dev/null @@ -1,161 +0,0 @@ -#!/usr/bin/env python -################################################## -# Gnuradio Python Flow Graph -# Title: Hrpt Demod -# Generated: Thu Oct 27 13:51:59 2011 -################################################## - -from gnuradio import digital -from gnuradio import eng_notation -from gnuradio import gr -from gnuradio import noaa -from gnuradio.eng_option import eng_option -from gnuradio.gr import firdes -from optparse import OptionParser -import math, os - -class hrpt_demod(gr.top_block): - - def __init__(self, input_filename="usrp.dat", output_filename="frames.dat", decim=32, pll_alpha=0.01, clock_alpha=0.01): - gr.top_block.__init__(self, "Hrpt Demod") - - ################################################## - # Parameters - ################################################## - self.input_filename = input_filename - self.output_filename = output_filename - self.decim = decim - self.pll_alpha = pll_alpha - self.clock_alpha = clock_alpha - - ################################################## - # Variables - ################################################## - self.sym_rate = sym_rate = 600*1109 - self.sample_rate = sample_rate = 4e6 - self.sps = sps = sample_rate/sym_rate - self.max_clock_offset = max_clock_offset = 100e-6 - self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/sample_rate - self.hs = hs = int(sps/2.0) - - ################################################## - # Blocks - ################################################## - self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset) - self.noaa_hrpt_deframer_0 = noaa.hrpt_deframer() - self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000) - self.gr_file_sink_0 = gr.file_sink(gr.sizeof_short*1, output_filename) - self.gr_file_sink_0.set_unbuffered(False) - self.file_source = gr.file_source(gr.sizeof_short*1, input_filename, False) - self.digital_clock_recovery_mm_xx_0 = digital.clock_recovery_mm_ff(sps/2.0, clock_alpha**2/4.0, 0.5, clock_alpha, max_clock_offset) - self.digital_binary_slicer_fb_0 = digital.binary_slicer_fb() - self.decoder = noaa.hrpt_decoder(True,False) - self.cs2cf = gr.interleaved_short_to_complex() - self.agc = gr.agc_cc(1e-5, 1.0, 1.0/32768.0, 1.0) - - ################################################## - # Connections - ################################################## - self.connect((self.file_source, 0), (self.cs2cf, 0)) - self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0)) - self.connect((self.cs2cf, 0), (self.agc, 0)) - self.connect((self.agc, 0), (self.pll, 0)) - self.connect((self.noaa_hrpt_deframer_0, 0), (self.gr_file_sink_0, 0)) - self.connect((self.noaa_hrpt_deframer_0, 0), (self.decoder, 0)) - self.connect((self.gr_moving_average_xx_0, 0), (self.digital_clock_recovery_mm_xx_0, 0)) - self.connect((self.digital_clock_recovery_mm_xx_0, 0), (self.digital_binary_slicer_fb_0, 0)) - self.connect((self.digital_binary_slicer_fb_0, 0), (self.noaa_hrpt_deframer_0, 0)) - - def get_input_filename(self): - return self.input_filename - - def set_input_filename(self, input_filename): - self.input_filename = input_filename - - def get_output_filename(self): - return self.output_filename - - def set_output_filename(self, output_filename): - self.output_filename = output_filename - - def get_decim(self): - return self.decim - - def set_decim(self, decim): - self.decim = decim - - def get_pll_alpha(self): - return self.pll_alpha - - def set_pll_alpha(self, pll_alpha): - self.pll_alpha = pll_alpha - self.pll.set_alpha(self.pll_alpha) - self.pll.set_beta(self.pll_alpha**2/4.0) - - def get_clock_alpha(self): - return self.clock_alpha - - def set_clock_alpha(self, clock_alpha): - self.clock_alpha = clock_alpha - self.digital_clock_recovery_mm_xx_0.set_gain_omega(self.clock_alpha**2/4.0) - self.digital_clock_recovery_mm_xx_0.set_gain_mu(self.clock_alpha) - - def get_sym_rate(self): - return self.sym_rate - - def set_sym_rate(self, sym_rate): - self.sym_rate = sym_rate - self.set_sps(self.sample_rate/self.sym_rate) - - def get_sample_rate(self): - return self.sample_rate - - def set_sample_rate(self, sample_rate): - self.sample_rate = sample_rate - self.set_max_carrier_offset(2*math.pi*100e3/self.sample_rate) - self.set_sps(self.sample_rate/self.sym_rate) - - def get_sps(self): - return self.sps - - def set_sps(self, sps): - self.sps = sps - self.set_hs(int(self.sps/2.0)) - self.digital_clock_recovery_mm_xx_0.set_omega(self.sps/2.0) - - def get_max_clock_offset(self): - return self.max_clock_offset - - def set_max_clock_offset(self, max_clock_offset): - self.max_clock_offset = max_clock_offset - - def get_max_carrier_offset(self): - return self.max_carrier_offset - - def set_max_carrier_offset(self, max_carrier_offset): - self.max_carrier_offset = max_carrier_offset - self.pll.set_max_offset(self.max_carrier_offset) - - def get_hs(self): - return self.hs - - def set_hs(self, hs): - self.hs = hs - self.gr_moving_average_xx_0.set_length_and_scale(self.hs, 1.0/self.hs) - -if __name__ == '__main__': - parser = OptionParser(option_class=eng_option, usage="%prog: [options]") - parser.add_option("-F", "--input-filename", dest="input_filename", type="string", default="usrp.dat", - help="Set usrp.dat [default=%default]") - parser.add_option("-o", "--output-filename", dest="output_filename", type="string", default="frames.dat", - help="Set frames.dat [default=%default]") - parser.add_option("-d", "--decim", dest="decim", type="intx", default=32, - help="Set None [default=%default]") - parser.add_option("-p", "--pll-alpha", dest="pll_alpha", type="eng_float", default=eng_notation.num_to_str(0.01), - help="Set None [default=%default]") - parser.add_option("-s", "--clock-alpha", dest="clock_alpha", type="eng_float", default=eng_notation.num_to_str(0.01), - help="Set None [default=%default]") - (options, args) = parser.parse_args() - tb = hrpt_demod(input_filename=options.input_filename, output_filename=options.output_filename, decim=options.decim, pll_alpha=options.pll_alpha, clock_alpha=options.clock_alpha) - tb.run() - |