def __init__(self):
gr.top_block.__init__(self)
usage = "%prog: [options] samples_file"
parser = OptionParser(option_class=eng_option, usage=usage)
parser.add_option("-m", "--dab-mode", type="int", default=1,
help="DAB mode [default=%default]")
parser.add_option('-u', '--usrp-source', action="store_true", default=False,
help="Samples from USRP (-> resample from 2 MSPS to 2.048 MSPS)")
(options, args) = parser.parse_args ()
dp = dab.dab_parameters(options.dab_mode)
filename = args[0]
self.src = blocks.file_source(gr.sizeof_gr_complex, filename, False)
self.resample = blocks.rational_resampler_ccc(2048,2000)
self.rate_detect_ns = dab.detect_null.detect_null(dp.ns_length, False)
self.rate_estimator = dab.blocks.estimate_sample_rate_bf(dp.sample_rate, dp.frame_length)
self.decimate = blocks.keep_one_in_n(gr.sizeof_float, dp.frame_length)
self.ignore_first = blocks.skiphead(gr.sizeof_float, 1)
self.sink = blocks.vector_sink_f()
if options.usrp_source:
self.connect(self.src, self.resample, self.rate_detect_ns, self.rate_estimator, self.decimate, self.ignore_first, self.sink)
else:
self.connect(self.src, self.rate_detect_ns, self.rate_estimator, self.decimate, self.ignore_first, self.sink)
def __init__(self):
gr.top_block.__init__(self)
usage = "%prog: [options] samples_file"
parser = OptionParser(option_class=eng_option, usage=usage)
parser.add_option("-m", "--dab-mode", type="int", default=1,
help="DAB mode [default=%default]")
parser.add_option("-F", "--filter-input", action="store_true", default=False,
help="Enable FFT filter at input")
parser.add_option("-s", "--resample-fixed", type="eng_float", default=1,
help="resample by a fixed factor (fractional interpolation)")
parser.add_option("-S", "--autocorrect-sample-rate", action="store_true", default=False,
help="Estimate sample rate offset and resample (dynamic fractional interpolation)")
parser.add_option('-u', '--usrp-source', action="store_true", default=False,
help="Samples from USRP (-> adjust params for 2 MSPS)")
parser.add_option('-d', '--debug', action="store_true", default=False,
help="Write output to files")
parser.add_option('-v', '--verbose', action="store_true", default=False,
help="Print status messages")
(options, args) = parser.parse_args ()
if options.usrp_source:
dp = dab.dab_parameters(options.dab_mode, verbose=options.verbose, sample_rate=2000000)
else:
dp = dab.dab_parameters(options.dab_mode, verbose=options.verbose)
rp = dab.receiver_parameters(options.dab_mode, softbits=True, input_fft_filter=options.filter_input, autocorrect_sample_rate=options.autocorrect_sample_rate, sample_rate_correction_factor=options.resample_fixed, correct_ffe=True, equalize_magnitude=True, verbose=options.verbose)
if len(args)<1:
print "error: need file with samples"
sys.exit(1)
else:
filename = args[0]
if options.verbose: print "--> using samples from file " + filename
self.src = gr.file_source(gr.sizeof_gr_complex, filename, False)
self.dab_demod = dab.ofdm_demod(dp, rp, verbose=options.verbose, debug=options.debug)
self.fic_dec = dab.fic_decode(dp, verbose=options.verbose, debug=options.debug)
self.connect(self.src, self.dab_demod, self.fic_dec)
self.connect((self.dab_demod,1), (self.fic_dec,1))
def __init__(self):
gr.top_block.__init__(self)
usage = "%prog: [options] samples_file"
parser = OptionParser(option_class=eng_option, usage=usage)
parser.add_option("-m", "--dab-mode", type="int", default=1,
help="DAB mode [default=%default]")
parser.add_option("-F", "--filter-input", action="store_true", default=False,
help="Enable FFT filter at input")
parser.add_option("-s", "--resample-fixed", type="eng_float", default=1,
help="resample by a fixed factor (fractional interpolation)")
parser.add_option("-S", "--autocorrect-sample-rate", action="store_true", default=False,
help="Estimate sample rate offset and resample (dynamic fractional interpolation)")
parser.add_option('-u', '--usrp-source', action="store_true", default=False,
help="Samples from USRP (-> adjust params for 2 MSPS)")
parser.add_option('-d', '--debug', action="store_true", default=False,
help="Write output to files")
parser.add_option('-v', '--verbose', action="store_true", default=False,
help="Print status messages")
(options, args) = parser.parse_args ()
if options.usrp_source:
dp = dab.dab_parameters(options.dab_mode, verbose=options.verbose, sample_rate=2000000)
else:
dp = dab.dab_parameters(options.dab_mode, verbose=options.verbose)
rp = dab.receiver_parameters(options.dab_mode, softbits=True, input_fft_filter=options.filter_input, autocorrect_sample_rate=options.autocorrect_sample_rate, sample_rate_correction_factor=options.resample_fixed, correct_ffe=True, equalize_magnitude=True, verbose=options.verbose)
if len(args)<1:
print "error: need file with samples"
sys.exit(1)
else:
filename = args[0]
if options.verbose: print "--> using samples from file " + filename
self.src = gr.file_source(gr.sizeof_gr_complex, filename, False)
self.dab_demod = dab.ofdm_demod(dp, rp, verbose=options.verbose, debug=options.debug)
self.fic_dec = dab.fic_decode(dp, verbose=options.verbose, debug=options.debug)
self.connect(self.src, self.dab_demod, self.fic_dec)
self.connect((self.dab_demod,1), (self.fic_dec,1))
def __init__(self):
gr.top_block.__init__(self)
usage = "%prog: [options] samples_file"
parser = OptionParser(option_class=eng_option, usage=usage)
parser.add_option("-m",
"--dab-mode",
type="int",
default=1,
help="DAB mode [default=%default]")
parser.add_option(
'-u',
'--usrp-source',
action="store_true",
default=False,
help="Samples from USRP (-> resample from 2 MSPS to 2.048 MSPS)")
(options, args) = parser.parse_args()
dp = dab.dab_parameters(options.dab_mode)
filename = args[0]
self.src = blocks.file_source(gr.sizeof_gr_complex, filename, False)
self.resample = blocks.rational_resampler_ccc(2048, 2000)
self.rate_detect_ns = dab.detect_null.detect_null(dp.ns_length, False)
self.rate_estimator = dab.blocks.estimate_sample_rate_bf(
dp.sample_rate, dp.frame_length)
self.decimate = blocks.keep_one_in_n(gr.sizeof_float, dp.frame_length)
self.ignore_first = blocks.skiphead(gr.sizeof_float, 1)
self.sink = blocks.vector_sink_f()
if options.usrp_source:
self.connect(self.src, self.resample, self.rate_detect_ns,
self.rate_estimator, self.decimate, self.ignore_first,
self.sink)
else:
self.connect(self.src, self.rate_detect_ns, self.rate_estimator,
self.decimate, self.ignore_first, self.sink)
def __init__(self, autocorrect_sample_rate=False, input_filter=True, ber_sink=False): gr.top_block.__init__(self) self.dp = dab.dab_parameters(1) self.rp = dab.receiver_parameters(1, softbits=False, input_fft_filter=input_filter, autocorrect_sample_rate=autocorrect_sample_rate, correct_ffe=True, equalize_magnitude=False) self.ber_sink = ber_sink os.environ['GR_SCHEDULER'] = "STS" # need single threaded scheduler for use with concatenate_signals
