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 = grdab.dab_parameters(options.dab_mode, verbose=options.verbose, sample_rate=2000000)
else:
dp = grdab.dab_parameters(options.dab_mode, verbose=options.verbose)
rp = grdab.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 = grdab.ofdm_demod(dp, rp, verbose=options.verbose, debug=options.debug)
self.fic_dec = grdab.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 get_channels(frequency=220.352e6, rf_gain=25, if_gain=0, bb_gain=0, ppm=0, use_zeromq=False, server="tcp://127.0.0.1:10444", server_control="tcp://127.0.0.1:10445"):
from gnuradio import gr, blocks, audio
if use_zeromq:
from gnuradio import zeromq
import osmosdr
import grdab
import time
samp_rate = samp_rate = 2000000
print("Setting frequency: %0.3f MHz" % (frequency/1e6))
if not use_zeromq:
osmosdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + '' )
osmosdr_source_0.set_sample_rate(samp_rate)
osmosdr_source_0.set_center_freq(frequency, 0)
osmosdr_source_0.set_freq_corr(0, 0)
osmosdr_source_0.set_dc_offset_mode(0, 0)
osmosdr_source_0.set_iq_balance_mode(0, 0)
osmosdr_source_0.set_gain_mode(False, 0)
osmosdr_source_0.set_gain(rf_gain, 0)
osmosdr_source_0.set_if_gain(if_gain, 0)
osmosdr_source_0.set_bb_gain(bb_gain, 0)
osmosdr_source_0.set_antenna('RX2', 0)
osmosdr_source_0.set_bandwidth(2000000, 0)
else:
zeromq_source = zeromq.sub_source(gr.sizeof_gr_complex, 1, server, 100, False, -1)
rpc_mgr_server = zeromq.rpc_manager()
rpc_mgr_server.set_request_socket(server_control)
rpc_mgr_server.request("set_sample_rate",[samp_rate])
rpc_mgr_server.request("set_rf_gain",[rf_gain])
rpc_mgr_server.request("set_if_gain",[if_gain])
rpc_mgr_server.request("set_bb_gain",[bb_gain])
rpc_mgr_server.request("set_ppm",[0]) # Not using hardware correction since it behaves differently on different hardware
rpc_mgr_server.request("set_frequency",[frequency])
time.sleep(0.7)
sample_rate_correction_factor = 1 + float(ppm)*1e-6
dab_ofdm_demod_0 = grdab.ofdm_demod(
grdab.parameters.dab_parameters(
mode=1,
sample_rate=samp_rate,
verbose=False
),
grdab.parameters.receiver_parameters(
mode=1,
softbits=True,
input_fft_filter=True,
autocorrect_sample_rate=False,
sample_rate_correction_factor=sample_rate_correction_factor,
always_include_resample=True,
verbose=False,
correct_ffe=True,
equalize_magnitude=True
)
)
dab_fic_decode_0 = grdab.fic_decode(
grdab.parameters.dab_parameters(
mode=1,
sample_rate=samp_rate,
verbose=False
)
)
#dab_fic_decode_0.set_print_channel_info(True)
fg = gr.top_block()
if not use_zeromq:
fg.connect(osmosdr_source_0, dab_ofdm_demod_0)
else:
fg.connect(zeromq_source, dab_ofdm_demod_0)
fg.connect(dab_ofdm_demod_0, dab_fic_decode_0)
fg.start()
attempt = 0
maxattempts = 9
channels = {}
while True:
service_labels = dab_fic_decode_0.get_service_labels()
if service_labels.strip() != "":
service_labels_json = json.loads(service_labels.strip())
for s in service_labels_json:
if s['reference'] not in channels:
channels[s['reference']] = {}
channels[s['reference']]['label'] = s['label']
subch_info = dab_fic_decode_0.get_subch_info()
service_info = dab_fic_decode_0.get_service_info() # mapping between service_labels number and subch_info number
if service_info.strip() != "":
service_info_json = json.loads(service_info.strip())
for s in service_info_json:
if s['reference'] not in channels:
channels[s['reference']] = {}
channels[s['reference']]['id'] = s['ID']
channels[s['reference']]['dabplus'] = s['DAB+']
subch_info = dab_fic_decode_0.get_subch_info() # settings needed for setting channel
if subch_info.strip() != "":
subch_info_json = json.loads(subch_info.strip())
for s in subch_info_json:
if 'ID' in s:
current_id = s['ID']
for key,val in channels.items():
if 'id' in val:
if val['id'] == current_id:
channels[key]['subch_info'] = s
break
all_have_label = True
for c,item in channels.items():
if 'label' not in item:
all_have_label = False
if attempt == maxattempts-1:
all_have_label = True
complete = False
if len(channels) > 0 and all_have_label:
print("Channels:")
for c,item in channels.items():
if 'subch_info' in item:
conv_table = [ 128, 8, 6, 5];
protect_level = item['subch_info']['protection']
subch_size = item['subch_info']['size']
if protect_level <= 4:
if 'label' in item:
label = item['label']
else:
label = "UNKNOWN"
bit_rate = subch_size * 8 / (conv_table[protect_level]);
print("%s: (address: %3d, subch_size: %3d, protect_level: %1d, bit_rate: %3d, classic: %1d)" % (label, item['subch_info']['address'], item['subch_info']['size'], item['subch_info']['protection'], bit_rate, not item['dabplus']))
complete = True
if complete:
break
attempt = attempt + 1
time.sleep(1)
fg.stop()
def __init__(self):
gr.top_block.__init__(self)
parser = OptionParser(option_class=eng_option,
usage="%prog: [options] output-filename")
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('-c',
'--correct-ffe',
action="store_true",
default=False,
help="do fine frequency correction")
parser.add_option(
'-u',
'--correct-ffe-usrp',
action="store_true",
default=False,
help=
"do fine frequency correction by retuning the USRP instead of in software"
)
parser.add_option('-e',
'--equalize-magnitude',
action="store_true",
default=False,
help="do magnitude equalization")
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("-f",
"--freq",
type="eng_float",
default=227.36e6,
help="set frequency to FREQ [default=%default]")
parser.add_option(
"-p",
"--ppm",
type="int",
default=0,
help="set frequency correction in ppm [default=%default]")
parser.add_option(
"-r",
"--sample-rate",
type="int",
default=2000000,
help="set sample rate to SAMPLE_RATE [default=%default]")
parser.add_option("-g",
"--rx-gain",
type="eng_float",
default=None,
help="set receive gain in dB (default is midpoint)")
parser.add_option('-v',
'--verbose',
action="store_true",
default=False,
help="verbose output")
(options, args) = parser.parse_args()
# if len(args)!=1:
# parser.print_help()
# sys.exit(1)
# else:
# self.filename = args[0]
# if gr.enable_realtime_scheduling() != gr.RT_OK:
# print "-> failed to enable realtime scheduling"
self.verbose = options.verbose
self.sample_rate = sample_rate = options.sample_rate
self.src = osmosdr.source()
self.src.set_sample_rate(sample_rate)
#self.src.set_center_freq(209.936e6, 0)
self.src.set_freq_corr(options.ppm)
self.src.set_gain_mode(True, 0)
self.src.set_gain(0, 0)
self.dab_params = grdab.parameters.dab_parameters(
mode=options.dab_mode,
sample_rate=self.sample_rate,
verbose=options.verbose)
self.rx_params = grdab.parameters.receiver_parameters(
mode=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,
verbose=options.verbose,
correct_ffe=options.correct_ffe,
equalize_magnitude=options.equalize_magnitude)
self.demod = grdab.ofdm_demod(self.dab_params,
self.rx_params,
verbose=options.verbose)
if len(args) >= 1:
self.filename = args[0]
self.sink = blocks.file_sink(gr.sizeof_char * 12288, self.filename)
#self.sink = gr.file_sink(gr.sizeof_char*3072, self.filename)
self.connect(self.demod, self.sink)
self.fic_dec = grdab.fic_decode(self.dab_params)
self.connect(self.src, self.demod, self.fic_dec)
# tune frequency
self.frequency = options.freq
self.set_freq(options.freq)
# set gain
if options.rx_gain is None:
# if no gain was specified, use AGC
self.src.set_gain_mode(True, 0)
else:
self.src.set_gain(options.rx_gain, 0)
self.update_ui = options.verbose
if self.update_ui:
self.run_ui_update_thread = True
self.ui_updater = threading.Timer(0.1, self.update_ui_function)
self.ui_updater.setDaemon(True)
self.ui_updater.start()
self.correct_ffe_usrp = options.correct_ffe_usrp
if self.correct_ffe_usrp:
print "--> correcting FFE on USRP"
self.run_correct_ffe_thread = True
self.ffe_updater = threading.Timer(0.1, self.correct_ffe)
self.ffe_updater.setDaemon(True)
self.ffe_updater.start()
def __init__(self):
gr.top_block.__init__(self)
parser = OptionParser(option_class=eng_option,
usage="%prog: [options] output-filename")
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('-c',
'--correct-ffe',
action="store_true",
default=False,
help="do fine frequency correction")
parser.add_option(
'-u',
'--correct-ffe-usrp',
action="store_true",
default=False,
help=
"do fine frequency correction by retuning the USRP instead of in software"
)
parser.add_option('-e',
'--equalize-magnitude',
action="store_true",
default=False,
help="do magnitude equalization")
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("-R",
"--rx-subdev-spec",
type="subdev",
default=(0, 0),
help="select USRP Rx side A or B [default=A]")
parser.add_option("-f",
"--freq",
type="eng_float",
default=227.36e6,
help="set frequency to FREQ [default=%default]")
parser.add_option(
"-d",
"--decim",
type="intx",
default=32,
help="set decimation rate to DECIM [default=%default]")
parser.add_option("-g",
"--rx-gain",
type="eng_float",
default=None,
help="set receive gain in dB (default is midpoint)")
parser.add_option('-v',
'--verbose',
action="store_true",
default=False,
help="verbose output")
parser.add_option('-a',
'--antenna',
type="string",
default="TX/RX",
help="select antenna")
(options, args) = parser.parse_args()
# if len(args)!=1:
# parser.print_help()
# sys.exit(1)
# else:
# self.filename = args[0]
# if gr.enable_realtime_scheduling() != gr.RT_OK:
# print "-> failed to enable realtime scheduling"
self.verbose = options.verbose
self.src = uhd.usrp_source("", uhd.io_type.COMPLEX_FLOAT32, 1)
#self.src.set_mux(usrp.determine_rx_mux_value(self.src, options.rx_subdev_spec))
#self.subdev = uhd.selected_subdev(self.src, options.rx_subdev_spec)
#print "--> using RX dboard " + self.subdev.side_and_name()
self.sample_rate = 2e6 #self.src.adc_rate()/options.decim
self.src.set_samp_rate(self.sample_rate)
self.src.set_antenna(options.antenna)
self.dab_params = grdab.parameters.dab_parameters(
mode=options.dab_mode,
sample_rate=self.sample_rate,
verbose=options.verbose)
self.rx_params = grdab.parameters.receiver_parameters(
mode=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,
verbose=options.verbose,
correct_ffe=options.correct_ffe,
equalize_magnitude=options.equalize_magnitude)
self.demod = grdab.ofdm_demod(self.dab_params,
self.rx_params,
verbose=options.verbose)
# self.sink = gr.file_sink(gr.sizeof_char*384, self.filename)
# self.trigsink = gr.null_sink(gr.sizeof_char)
# self.connect(self.src, self.demod, self.sink)
# self.connect((self.demod,1), self.trigsink)
self.fic_dec = grdab.fic_decode(self.dab_params)
self.connect(self.src, self.demod, self.fic_dec)
# add MSC chain
self.dabplus = grdab.dabplus_audio_decoder_ff(self.dab_params, 112, 54,
84, 2, True)
self.audio = audio.sink_make(32000)
self.connect(self.demod, self.dabplus)
# left stereo channel
self.connect((self.dabplus, 0), (self.audio, 0))
# right stereo channel
self.connect((self.dabplus, 1), (self.audio, 1))
# tune frequency
self.frequency = options.freq
self.set_freq(options.freq)
# set gain
if options.rx_gain is None:
# if no gain was specified, use the mid-point in dB
g = self.src.get_gain_range()
options.rx_gain = float(g.start() + g.stop()) / 2
self.src.set_gain(options.rx_gain)
#self.subdev.set_gain(options.rx_gain)
self.update_ui = options.verbose
if self.update_ui:
self.run_ui_update_thread = True
self.ui_updater = threading.Timer(0.1, self.update_ui_function)
self.ui_updater.setDaemon(True)
self.ui_updater.start()
self.correct_ffe_usrp = options.correct_ffe_usrp
if self.correct_ffe_usrp:
print "--> correcting FFE on USRP"
self.run_correct_ffe_thread = True
self.ffe_updater = threading.Timer(0.1, self.correct_ffe)
self.ffe_updater.setDaemon(True)
self.ffe_updater.start()
def __init__(self):
gr.top_block.__init__(self)
parser = OptionParser(option_class=eng_option, usage="%prog: [options] output-filename")
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('-c', '--correct-ffe', action="store_true", default=False,
help="do fine frequency correction")
parser.add_option('-u', '--correct-ffe-usrp', action="store_true", default=False,
help="do fine frequency correction by retuning the USRP instead of in software")
parser.add_option('-e', '--equalize-magnitude', action="store_true", default=False,
help="do magnitude equalization")
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("-f", "--freq", type="eng_float", default=227.36e6,
help="set frequency to FREQ [default=%default]")
parser.add_option("-p", "--ppm", type="int", default=0,
help="set frequency correction in ppm [default=%default]")
parser.add_option("-r", "--sample-rate", type="int", default=2000000,
help="set sample rate to SAMPLE_RATE [default=%default]")
parser.add_option("-g", "--rx-gain", type="eng_float", default=None,
help="set receive gain in dB (default is midpoint)")
parser.add_option('-v', '--verbose', action="store_true", default=False,
help="verbose output")
(options, args) = parser.parse_args ()
# if len(args)!=1:
# parser.print_help()
# sys.exit(1)
# else:
# self.filename = args[0]
# if gr.enable_realtime_scheduling() != gr.RT_OK:
# print "-> failed to enable realtime scheduling"
self.verbose = options.verbose
self.sample_rate = sample_rate = options.sample_rate
self.src = osmosdr.source()
self.src.set_sample_rate(sample_rate)
#self.src.set_center_freq(209.936e6, 0)
self.src.set_freq_corr(options.ppm)
self.src.set_gain_mode(True, 0)
self.src.set_gain(0, 0)
self.dab_params = grdab.parameters.dab_parameters(
mode=options.dab_mode,
sample_rate=self.sample_rate,
verbose=options.verbose
)
self.rx_params = grdab.parameters.receiver_parameters(
mode=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,
verbose=options.verbose,
correct_ffe=options.correct_ffe,
equalize_magnitude=options.equalize_magnitude
)
self.demod = grdab.ofdm_demod(self.dab_params, self.rx_params, verbose=options.verbose)
if len(args) >= 1:
self.filename = args[0]
self.sink = blocks.file_sink(gr.sizeof_char*12288, self.filename)
#self.sink = gr.file_sink(gr.sizeof_char*3072, self.filename)
self.connect(self.demod, self.sink)
self.fic_dec = grdab.fic_decode(self.dab_params)
self.connect(self.src, self.demod, self.fic_dec)
# tune frequency
self.frequency = options.freq
self.set_freq(options.freq)
# set gain
if options.rx_gain is None:
# if no gain was specified, use AGC
self.src.set_gain_mode(True, 0)
else:
self.src.set_gain(options.rx_gain, 0)
self.update_ui = options.verbose
if self.update_ui:
self.run_ui_update_thread = True
self.ui_updater = threading.Timer(0.1,self.update_ui_function)
self.ui_updater.setDaemon(True)
self.ui_updater.start()
self.correct_ffe_usrp = options.correct_ffe_usrp
if self.correct_ffe_usrp:
print "--> correcting FFE on USRP"
self.run_correct_ffe_thread = True
self.ffe_updater = threading.Timer(0.1, self.correct_ffe)
self.ffe_updater.setDaemon(True)
self.ffe_updater.start()
def get_channels(frequency=220.352e6,
rf_gain=25,
if_gain=0,
bb_gain=0,
ppm=0,
use_zeromq=False,
server="tcp://127.0.0.1:10444",
server_control="tcp://127.0.0.1:10445",
from_file=None,
from_file_repeat=False):
from gnuradio import gr, blocks, audio
if use_zeromq:
from gnuradio import zeromq
import osmosdr
import grdab
import time
samp_rate = samp_rate = 2048000
print("Setting frequency: %0.3f MHz" % (frequency / 1e6))
fg = gr.top_block()
if from_file != None:
file_input = blocks.file_source(gr.sizeof_gr_complex, from_file,
True) # Makes sense to always repeat
src = file_input
print("Run from file %s" % from_file)
elif not use_zeromq:
osmosdr_source_0 = osmosdr.source(args="numchan=" + str(1) + " " + '')
osmosdr_source_0.set_sample_rate(samp_rate)
osmosdr_source_0.set_center_freq(frequency, 0)
osmosdr_source_0.set_freq_corr(0, 0)
osmosdr_source_0.set_dc_offset_mode(0, 0)
osmosdr_source_0.set_iq_balance_mode(0, 0)
osmosdr_source_0.set_gain_mode(False, 0)
osmosdr_source_0.set_gain(rf_gain, 0)
osmosdr_source_0.set_if_gain(if_gain, 0)
osmosdr_source_0.set_bb_gain(bb_gain, 0)
osmosdr_source_0.set_antenna('RX2', 0)
osmosdr_source_0.set_bandwidth(2000000, 0)
src = osmosdr_source_0
else:
zeromq_source = zeromq.sub_source(gr.sizeof_gr_complex, 1, server, 100,
False, -1)
rpc_mgr_server = zeromq.rpc_manager()
rpc_mgr_server.set_request_socket(server_control)
rpc_mgr_server.request("set_sample_rate", [samp_rate])
rpc_mgr_server.request("set_rf_gain", [rf_gain])
rpc_mgr_server.request("set_if_gain", [if_gain])
rpc_mgr_server.request("set_bb_gain", [bb_gain])
rpc_mgr_server.request(
"set_ppm", [0]
) # Not using hardware correction since it behaves differently on different hardware
rpc_mgr_server.request("set_frequency", [frequency])
time.sleep(0.7)
src = zeromq_source
sample_rate_correction_factor = 1 + float(ppm) * 1e-6
dab_ofdm_demod_0 = grdab.ofdm_demod(
grdab.parameters.dab_parameters(mode=1,
sample_rate=samp_rate,
verbose=False),
grdab.parameters.receiver_parameters(
mode=1,
softbits=True,
input_fft_filter=True,
autocorrect_sample_rate=False,
sample_rate_correction_factor=sample_rate_correction_factor,
always_include_resample=True,
verbose=False,
correct_ffe=True,
equalize_magnitude=True))
dab_fic_decode_0 = grdab.fic_decode(
grdab.parameters.dab_parameters(mode=1,
sample_rate=samp_rate,
verbose=False))
#dab_fic_decode_0.set_print_channel_info(True)
fg.connect(src, dab_ofdm_demod_0)
fg.connect(dab_ofdm_demod_0, dab_fic_decode_0)
fg.start()
attempt = 0
maxattempts = 9
channels = {}
while True:
service_labels = dab_fic_decode_0.get_service_labels()
if service_labels.strip() != "":
service_labels_json = json.loads(service_labels.strip())
for s in service_labels_json:
if s['reference'] not in channels:
channels[s['reference']] = {}
channels[s['reference']]['label'] = s['label']
subch_info = dab_fic_decode_0.get_subch_info()
service_info = dab_fic_decode_0.get_service_info(
) # mapping between service_labels number and subch_info number
if service_info.strip() != "":
service_info_json = json.loads(service_info.strip())
for s in service_info_json:
if s['reference'] not in channels:
channels[s['reference']] = {}
channels[s['reference']]['id'] = s['ID']
channels[s['reference']]['dabplus'] = s['DAB+']
subch_info = dab_fic_decode_0.get_subch_info(
) # settings needed for setting channel
if subch_info.strip() != "":
subch_info_json = json.loads(subch_info.strip())
for s in subch_info_json:
if 'ID' in s:
current_id = s['ID']
for key, val in channels.items():
if 'id' in val:
if val['id'] == current_id:
channels[key]['subch_info'] = s
break
all_have_label = True
for c, item in channels.items():
if 'label' not in item:
all_have_label = False
if attempt == maxattempts - 1:
all_have_label = True
complete = False
if len(channels) > 0 and all_have_label:
print("Channels:")
for c, item in channels.items():
if 'subch_info' in item:
conv_table = [128, 8, 6, 5]
protect_level = item['subch_info']['protection']
subch_size = item['subch_info']['size']
if protect_level <= 4:
if 'label' in item:
label = item['label']
else:
label = "UNKNOWN"
bit_rate = subch_size * 8 / (conv_table[protect_level])
print(
"%s: (address: %3d, subch_size: %3d, protect_level: %1d, bit_rate: %3d, classic: %1d)"
% (label, item['subch_info']['address'],
item['subch_info']['size'],
item['subch_info']['protection'], bit_rate,
not item['dabplus']))
complete = True
if complete:
break
attempt = attempt + 1
time.sleep(1)
fg.stop()
def __init__(self):
gr.top_block.__init__(self)
parser = OptionParser(option_class=eng_option, usage="%prog: [options] output-filename")
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('-c', '--correct-ffe', action="store_true", default=False,
help="do fine frequency correction")
parser.add_option('-u', '--correct-ffe-usrp', action="store_true", default=False,
help="do fine frequency correction by retuning the USRP instead of in software")
parser.add_option('-e', '--equalize-magnitude', action="store_true", default=False,
help="do magnitude equalization")
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("-R", "--rx-subdev-spec", type="subdev", default=(0, 0),
help="select USRP Rx side A or B [default=A]")
parser.add_option("-f", "--freq", type="eng_float", default=227.36e6,
help="set frequency to FREQ [default=%default]")
parser.add_option("-d", "--decim", type="intx", default=32,
help="set decimation rate to DECIM [default=%default]")
parser.add_option("-g", "--rx-gain", type="eng_float", default=None,
help="set receive gain in dB (default is midpoint)")
parser.add_option('-v', '--verbose', action="store_true", default=False,
help="verbose output")
parser.add_option('-a', '--antenna', type="string", default="TX/RX",
help="select antenna")
(options, args) = parser.parse_args ()
# if len(args)!=1:
# parser.print_help()
# sys.exit(1)
# else:
# self.filename = args[0]
# if gr.enable_realtime_scheduling() != gr.RT_OK:
# print "-> failed to enable realtime scheduling"
self.verbose = options.verbose
self.src = uhd.usrp_source("",uhd.io_type.COMPLEX_FLOAT32,1)
#self.src.set_mux(usrp.determine_rx_mux_value(self.src, options.rx_subdev_spec))
#self.subdev = uhd.selected_subdev(self.src, options.rx_subdev_spec)
#print "--> using RX dboard " + self.subdev.side_and_name()
self.sample_rate = 2e6#self.src.adc_rate()/options.decim
self.src.set_samp_rate(self.sample_rate)
self.src.set_antenna(options.antenna)
self.dab_params = grdab.parameters.dab_parameters(mode=options.dab_mode, sample_rate=self.sample_rate, verbose=options.verbose)
self.rx_params = grdab.parameters.receiver_parameters(mode=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, verbose=options.verbose, correct_ffe=options.correct_ffe, equalize_magnitude=options.equalize_magnitude)
self.demod = grdab.ofdm_demod(self.dab_params, self.rx_params, verbose=options.verbose)
# self.sink = gr.file_sink(gr.sizeof_char*384, self.filename)
# self.trigsink = gr.null_sink(gr.sizeof_char)
# self.connect(self.src, self.demod, self.sink)
# self.connect((self.demod,1), self.trigsink)
self.fic_dec = grdab.fic_decode(self.dab_params)
self.connect(self.src, self.demod, (self.fic_dec,0))
self.connect((self.demod,1), (self.fic_dec,1))
# tune frequency
self.frequency = options.freq
self.set_freq(options.freq)
# set gain
if options.rx_gain is None:
# if no gain was specified, use the mid-point in dB
g = self.src.get_gain_range()
options.rx_gain = float(g.start()+g.stop())/2
self.src.set_gain(options.rx_gain)
#self.subdev.set_gain(options.rx_gain)
self.update_ui = options.verbose
if self.update_ui:
self.run_ui_update_thread = True
self.ui_updater = threading.Timer(0.1,self.update_ui_function)
self.ui_updater.setDaemon(True)
self.ui_updater.start()
self.correct_ffe_usrp = options.correct_ffe_usrp
if self.correct_ffe_usrp:
print "--> correcting FFE on USRP"
self.run_correct_ffe_thread = True
self.ffe_updater = threading.Timer(0.1, self.correct_ffe)
self.ffe_updater.setDaemon(True)
self.ffe_updater.start()