def __init__(self, options, args, queue):
gr.top_block.__init__(self)
self.options = options
self.args = args
rate = int(options.rate)
if options.filename is None:
self.u = uhd.single_usrp_source("", uhd.io_type_t.COMPLEX_FLOAT32,
1)
time_spec = uhd.time_spec(0.0)
self.u.set_time_now(time_spec)
#if(options.rx_subdev_spec is None):
# options.rx_subdev_spec = ""
#self.u.set_subdev_spec(options.rx_subdev_spec)
if not options.antenna is None:
self.u.set_antenna(options.antenna)
self.u.set_samp_rate(rate)
rate = int(self.u.get_samp_rate()) #retrieve actual
if options.gain is None: #set to halfway
g = self.u.get_gain_range()
options.gain = (g.start() + g.stop()) / 2.0
if not (self.tune(options.freq)):
print "Failed to set initial frequency"
print "Setting gain to %i" % (options.gain, )
self.u.set_gain(options.gain)
print "Gain is %i" % (self.u.get_gain(), )
else:
self.u = gr.file_source(gr.sizeof_gr_complex, options.filename)
print "Rate is %i" % (rate, )
pass_all = 0
if options.output_all:
pass_all = 1
self.demod = gr.complex_to_mag()
self.avg = gr.moving_average_ff(100, 1.0 / 100, 400)
#the DBSRX especially tends to be spur-prone; the LPF keeps out the
#spur multiple that shows up at 2MHz
self.lpfiltcoeffs = gr.firdes.low_pass(1, rate, 1.8e6, 100e3)
self.lpfilter = gr.fir_filter_ccf(1, self.lpfiltcoeffs)
self.preamble = air.modes_preamble(rate, options.threshold)
#self.framer = air.modes_framer(rate)
self.slicer = air.modes_slicer(rate, queue)
self.connect(self.u, self.lpfilter, self.demod)
self.connect(self.demod, self.avg)
self.connect(self.demod, (self.preamble, 0))
self.connect(self.avg, (self.preamble, 1))
self.connect((self.preamble, 0), (self.slicer, 0))
def __init__(self, options, args, queue):
gr.top_block.__init__(self)
self.options = options
self.args = args
rate = int(options.rate)
if options.filename is None:
self.u = uhd.single_usrp_source("", uhd.io_type_t.COMPLEX_FLOAT32, 1)
time_spec = uhd.time_spec(0.0)
self.u.set_time_now(time_spec)
#if(options.rx_subdev_spec is None):
# options.rx_subdev_spec = ""
#self.u.set_subdev_spec(options.rx_subdev_spec)
if not options.antenna is None:
self.u.set_antenna(options.antenna)
self.u.set_samp_rate(rate)
rate = int(self.u.get_samp_rate()) #retrieve actual
if options.gain is None: #set to halfway
g = self.u.get_gain_range()
options.gain = (g.start()+g.stop()) / 2.0
if not(self.tune(options.freq)):
print "Failed to set initial frequency"
print "Setting gain to %i" % (options.gain,)
self.u.set_gain(options.gain)
print "Gain is %i" % (self.u.get_gain(),)
else:
self.u = gr.file_source(gr.sizeof_gr_complex, options.filename)
print "Rate is %i" % (rate,)
pass_all = 0
if options.output_all :
pass_all = 1
self.demod = gr.complex_to_mag()
self.avg = gr.moving_average_ff(100, 1.0/100, 400)
#the DBSRX especially tends to be spur-prone; the LPF keeps out the
#spur multiple that shows up at 2MHz
self.lpfiltcoeffs = gr.firdes.low_pass(1, rate, 1.8e6, 100e3)
self.lpfilter = gr.fir_filter_ccf(1, self.lpfiltcoeffs)
self.preamble = air.modes_preamble(rate, options.threshold)
#self.framer = air.modes_framer(rate)
self.slicer = air.modes_slicer(rate, queue)
self.connect(self.u, self.lpfilter, self.demod)
self.connect(self.demod, self.avg)
self.connect(self.demod, (self.preamble, 0))
self.connect(self.avg, (self.preamble, 1))
self.connect((self.preamble, 0), (self.slicer, 0))
def __init__(self, options, args, queue):
gr.top_block.__init__(self)
self.options = options
self.args = args
rate = int(options.rate)
if options.filename is None:
self.u = rtl_source_c()
#if(options.rx_subdev_spec is None):
# options.rx_subdev_spec = ""
#self.u.set_subdev_spec(options.rx_subdev_spec)
if not options.antenna is None:
self.u.set_antenna(options.antenna)
self.u.set_sample_rate(rate)
if not(self.tune(options.freq)):
print "Failed to set initial frequency"
print "Setting gain to %i" % (options.gain,)
self.u.set_gain(options.gain)
print "Gain is %i" % (options.gain,)
self.u.set_verbose(0)
else:
self.u = gr.file_source(gr.sizeof_gr_complex, options.filename)
print "Rate is %i" % (rate,)
pass_all = 0
if options.output_all :
pass_all = 1
self.demod = gr.complex_to_mag()
self.avg = gr.moving_average_ff(100, 1.0/100, 400)
#the DBSRX especially tends to be spur-prone; the LPF keeps out the
#spur multiple that shows up at 2MHz
# self.lpfiltcoeffs = gr.firdes.low_pass(1, rate, 0.9*rate/2, 50e3)
# self.lpfiltcoeffs = gr.firdes.low_pass(1, rate, 0.9*rate/2, 100e3)
self.lpfiltcoeffs = gr.firdes.high_pass(1, rate, 1e3, 100e3)
self.lpfilter = gr.fir_filter_ccf(1, self.lpfiltcoeffs)
self.preamble = air.modes_preamble(rate, options.threshold)
#self.framer = air.modes_framer(rate)
self.slicer = air.modes_slicer(rate, queue)
self.connect(self.u, self.lpfilter, self.demod)
self.connect(self.demod, self.avg)
self.connect(self.demod, (self.preamble, 0))
self.connect(self.avg, (self.preamble, 1))
self.connect((self.preamble, 0), (self.slicer, 0))
