def __init__(self, rate, threshold, queue, use_pmf=False):
gr.hier_block2.__init__(self, "modes_rx_path",
gr.io_signature(1, 1, gr.sizeof_gr_complex),
gr.io_signature(0,0,0))
self._rate = int(rate)
self._threshold = threshold
self._queue = queue
self._spc = int(rate/2e6)
# Convert incoming I/Q baseband to amplitude
self._demod = gr.complex_to_mag()
self._bb = self._demod
# Pulse matched filter for 0.5us pulses
if use_pmf:
self._pmf = gr.moving_average_ff(self._spc, 1.0/self._spc, self._rate)
self.connect(self._demod, self._pmf)
self._bb = self._pmf
# Establish baseline amplitude (noise, interference)
self._avg = gr.moving_average_ff(48*self._spc, 1.0/(48*self._spc), self._rate) # 3 preambles
# Synchronize to Mode-S preamble
self._sync = air_modes_swig.modes_preamble(self._rate, self._threshold)
# Slice Mode-S bits and send to message queue
self._slicer = air_modes_swig.modes_slicer(self._rate, self._queue)
# Wire up the flowgraph
self.connect(self, self._demod)
self.connect(self._bb, (self._sync, 0))
self.connect(self._bb, self._avg, (self._sync, 1))
self.connect(self._sync, self._slicer)
def __init__(self, decim=32, sync_check=False, satellite='METEOR-M-1', baseband_file=os.environ['HOME'] + '/METEOR-M-1.dat', frames_file=os.environ['HOME'] + '/METEOR-M-1.hrpt'):
gr.top_block.__init__(self, "Meteor M N1 HRPT Baseband To Frames")
##################################################
# Parameters
##################################################
self.decim = decim
self.sync_check = sync_check
self.satellite = satellite
self.baseband_file = baseband_file
self.frames_file = frames_file
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600*1109
self.sample_rate = sample_rate = 64e6/decim
self.sps = sps = sample_rate/sym_rate
self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/mn1_hrpt.conf'
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try: saved_pll_alpha = self._saved_pll_alpha_config.getfloat("satname", 'pll_alpha')
except: saved_pll_alpha = 0.01
self.saved_pll_alpha = saved_pll_alpha
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try: saved_clock_alpha = self._saved_clock_alpha_config.getfloat("satname", 'clock_alpha')
except: saved_clock_alpha = 0.01
self.saved_clock_alpha = saved_clock_alpha
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.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.frame_sink = gr.file_sink(gr.sizeof_short*1, frames_file)
self.frame_sink.set_unbuffered(False)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(sps/2.0, saved_clock_alpha**2/4.0, 0.5, saved_clock_alpha, max_clock_offset)
self.gr_file_source_0 = gr.file_source(gr.sizeof_short*1, baseband_file, False)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex()
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.pll = noaa.hrpt_pll_cf(saved_pll_alpha, saved_pll_alpha**2/4.0, max_carrier_offset)
self.poesweather_mn1_hrpt_deframer_0 = poesweather.mn1_hrpt_deframer(sync_check)
self.throttle = gr.throttle(gr.sizeof_short*1, sample_rate*10)
##################################################
# Connections
##################################################
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_binary_slicer_fb_0, 0))
self.connect((self.gr_file_source_0, 0), (self.throttle, 0))
self.connect((self.throttle, 0), (self.gr_interleaved_short_to_complex_0, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0), (self.agc, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.poesweather_mn1_hrpt_deframer_0, 0))
self.connect((self.poesweather_mn1_hrpt_deframer_0, 0), (self.frame_sink, 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 = 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))
def __init__(self, u, center_freq, hw_dec_rate, downsample_rate, pulse_width, tari, debug_on, output_data):
gr.top_block.__init__(self)
# sample_rate = 100e6 / hw_dec_rate
sample_rate = 2e6
self.u = u
# self.u.set_decim(hw_dec_rate)
g = u.get_gain_range()
print "-----------"
self.u.set_gain(float(g.start() + g.stop()) / 4)
print "Using gain of", float(g.start() + g.stop()) / 4 , "(", g.stop(), "-", g.start(), ")"
tune_req = uhd.tune_request_t(center_freq,sample_rate)
# r = rx.set_center_freq(tune_req)
x = self.u.set_center_freq(tune_req)
if not x:
print "Couldn't set rx freq"
self.u.set_samp_rate(sample_rate)
us_per_sample = 1e6 / sample_rate * downsample_rate
print "USRP Sample Rate: "+ str(sample_rate) + " us Per Sample: " + str(us_per_sample)
# 25 Msps is too much to process. But we don't want to decimate at the USRP because we want the full band.
# We can downsample, because we don't care about aliasing.
self.downsample = gr.keep_one_in_n(gr.sizeof_gr_complex, int(downsample_rate))
self.to_mag = gr.complex_to_mag()
# For TARI = 24, PW == DELIM. So we can't do a matched filter, or everything becomes a delimiter and a zero.
# PW / 2 smooths reasonably well.
# self.smooth = gr.moving_average_ff(int(pulse_width / us_per_sample) /2 , int(pulse_width / us_per_sample) /2 )
self.smooth = gr.moving_average_ff(int(1), 1.0)
self.rd = rfid.reader_decoder(us_per_sample, tari)
if(debug_on):
# fileInfo = "_smooth1_b"
# time = strftime("%H_%M_%S", localtime())
# threshFileName = "rm_thresh_" + time + fileInfo + ".out"
# signalFileName = "rm_signal_" + time + fileInfo + ".out"
signalFileName = "rm_signal.out"
threshFileName = "rm_thresh.out"
self.sink = gr.file_sink(gr.sizeof_float, threshFileName)
# self.signal_sink = gr.file_sink(gr.sizeof_float, signalFileName)
# self.connect(self.smooth, self.signal_sink)
else:
self.sink = gr.null_sink(gr.sizeof_float)
self.connect(self.u, self.downsample, self.to_mag, self.smooth, self.rd, self.sink)
# Change to "gr.sizeof_gr_complex" if "block_x" is "rx"
file_rx_sink = gr.file_sink(gr.sizeof_gr_complex, output_data)
self.connect(self.u, file_rx_sink)
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="RTTY decoder example")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 44100
##################################################
# Blocks
##################################################
self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.GetWin(),
title="Scope Plot",
sample_rate=samp_rate/40,
v_scale=1,
v_offset=0,
t_scale=25e-3,
ac_couple=False,
xy_mode=False,
num_inputs=1,
trig_mode=gr.gr_TRIG_MODE_AUTO,
y_axis_label="Counts",
)
self.Add(self.wxgui_scopesink2_0.win)
self.rtty_decode_ff_0 = rtty.decode_ff(
samp_rate=samp_rate/40,
baud_rate=45.45,
polarity=True,
)
self.low_pass_filter_0 = gr.fir_filter_fff(40, firdes.low_pass(
100, samp_rate, 45.45*3, 20, firdes.WIN_HANN, 6.76))
self.gr_wavfile_source_0 = gr.wavfile_source("/home/nick/Downloads/ksm_rtty.wav", False)
self.gr_sub_xx_0 = gr.sub_ff(1)
self.gr_quadrature_demod_cf_0 = gr.quadrature_demod_cf(1)
self.gr_moving_average_xx_0 = gr.moving_average_ff(5000, 1.0/5000, 20000)
self.gr_hilbert_fc_0 = gr.hilbert_fc(64)
self.gr_file_sink_0 = gr.file_sink(gr.sizeof_char*1, "/home/nick/Desktop/rtty/test.dat")
self.gr_file_sink_0.set_unbuffered(False)
##################################################
# Connections
##################################################
self.connect((self.low_pass_filter_0, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_sub_xx_0, 1))
self.connect((self.gr_sub_xx_0, 0), (self.wxgui_scopesink2_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.gr_sub_xx_0, 0))
self.connect((self.rtty_decode_ff_0, 0), (self.gr_file_sink_0, 0))
self.connect((self.gr_sub_xx_0, 0), (self.rtty_decode_ff_0, 0))
self.connect((self.gr_quadrature_demod_cf_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.gr_hilbert_fc_0, 0), (self.gr_quadrature_demod_cf_0, 0))
self.connect((self.gr_wavfile_source_0, 0), (self.gr_hilbert_fc_0, 0))
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 __init__(self, u, center_freq, hw_dec_rate, downsample_rate,
pulse_width, tari, debug_on):
gr.top_block.__init__(self)
self.u = u
self.u.set_decim(hw_dec_rate)
g = u.gain_range()
self.u.set_gain(float(g[0] + g[1]) / 4)
print "Using gain of", float(g[0] +
g[1]) / 4, "(", g[0], "-", g[1], ")"
x = self.u.set_center_freq(center_freq)
if not x:
print "Couldn't set rx freq"
sample_rate = self.u.adc_rate() / hw_dec_rate
us_per_sample = 1e6 / sample_rate * downsample_rate
print "USRP Sample Rate: " + str(
sample_rate) + " us Per Sample: " + str(us_per_sample)
#25 Msps is too much to process. But we don't want to decimate at the USRP because we want the full band.
# We can downsample, because we don't care about aliasing.
self.downsample = gr.keep_one_in_n(gr.sizeof_gr_complex,
int(downsample_rate))
self.to_mag = gr.complex_to_mag()
#For TARI = 24, PW == DELIM. So we can't do a matched filter, or everything becomes a delimiter and a zero.
# PW / 2 smooths reasonably well.
self.smooth = gr.moving_average_ff(
int(pulse_width / us_per_sample) / 2,
int(pulse_width / us_per_sample) / 2)
self.rd = rfid.reader_decoder(us_per_sample, tari)
if (debug_on):
self.sink = gr.file_sink(gr.sizeof_float, "rm.out")
self.signal_sink = gr.file_sink(gr.sizeof_float, "rm_signal.out")
self.connect(self.smooth, self.signal_sink)
else:
self.sink = gr.null_sink(gr.sizeof_float)
self.connect(self.u, self.downsample, self.to_mag, self.smooth,
self.rd, self.sink)
def __init__(self, u, center_freq, hw_dec_rate, downsample_rate, pulse_width, tari, debug_on):
gr.top_block.__init__(self)
self.u = u
self.u.set_decim(hw_dec_rate)
g = u.gain_range()
self.u.set_gain(float(g[0] + g[1]) / 4)
print "Using gain of", float(g[0] + g[1]) / 4 , "(", g[0], "-", g[1], ")"
x = self.u.set_center_freq(center_freq)
if not x:
print "Couldn't set rx freq"
sample_rate = self.u.adc_rate() / hw_dec_rate
us_per_sample = 1e6 / sample_rate * downsample_rate
print "USRP Sample Rate: "+ str(sample_rate) + " us Per Sample: " + str(us_per_sample)
#25 Msps is too much to process. But we don't want to decimate at the USRP because we want the full band.
# We can downsample, because we don't care about aliasing.
self.downsample = gr.keep_one_in_n(gr.sizeof_gr_complex, int(downsample_rate))
self.to_mag = gr.complex_to_mag()
#For TARI = 24, PW == DELIM. So we can't do a matched filter, or everything becomes a delimiter and a zero.
# PW / 2 smooths reasonably well.
self.smooth = gr.moving_average_ff(int(pulse_width / us_per_sample) /2 , int(pulse_width / us_per_sample) /2 )
self.rd = rfid.reader_decoder(us_per_sample, tari)
if(debug_on):
self.sink = gr.file_sink(gr.sizeof_float, "rm.out")
self.signal_sink = gr.file_sink(gr.sizeof_float, "rm_signal.out")
self.connect(self.smooth, self.signal_sink)
else:
self.sink = gr.null_sink(gr.sizeof_float)
self.connect(self.u, self.downsample, self.to_mag, self.smooth, self.rd, self.sink)
def __init__(self, pll_alpha=0.005, satellite='NOAA18', decim=50, gain=25, clock_alpha=0.005, freq=1707e6, deframer_sync_check=True, deframer_insync_frames=2, deframer_outsync_frames=5, symb_rate=600*1109, baseband_file=os.environ['HOME'] + '/noaa_hrpt_baseband.dat', frames_file=os.environ['HOME'] + '/noaa_hrpt_frames.hmf'):
grc_wxgui.top_block_gui.__init__(self, title="USRP2 NOAA HRPT Receiver")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.pll_alpha = pll_alpha
self.satellite = satellite
self.decim = decim
self.gain = gain
self.clock_alpha = clock_alpha
self.freq = freq
self.deframer_sync_check = deframer_sync_check
self.deframer_insync_frames = deframer_insync_frames
self.deframer_outsync_frames = deframer_outsync_frames
self.symb_rate = symb_rate
self.baseband_file = baseband_file
self.frames_file = frames_file
##################################################
# Variables
##################################################
self.decim_tb = decim_tb = decim
self.symb_rate_tb = symb_rate_tb = symb_rate
self.samp_rate = samp_rate = 100e6/decim_tb
self.sps = sps = samp_rate/symb_rate_tb
self.satellite_text = satellite_text = satellite
self.samp_rate_st = samp_rate_st = samp_rate
self.pll_alpha_sl = pll_alpha_sl = pll_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/samp_rate
self.hs = hs = int(sps/2.0)
self.gain_tb = gain_tb = gain
self.freq_tb = freq_tb = freq
self.frames_file_text_inf = frames_file_text_inf = frames_file
self.deframer_sync_after_text = deframer_sync_after_text = deframer_insync_frames
self.deframer_nosync_after_text = deframer_nosync_after_text = deframer_outsync_frames
self.deframer_check_sync_text = deframer_check_sync_text = deframer_sync_check
self.datetime_text = datetime_text = strftime("%A, %B %d %Y %H:%M:%S", localtime())
self.clock_alpha_sl = clock_alpha_sl = clock_alpha
self.baseband_file_text_inf = baseband_file_text_inf = baseband_file
##################################################
# Notebooks
##################################################
self.rx_ntb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "USRP Receiver")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "PLL demodulator and Clock sync")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Deframer")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Output")
self.Add(self.rx_ntb)
##################################################
# Controls
##################################################
self._decim_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.decim_tb,
callback=self.set_decim_tb,
label="Decimation",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._decim_tb_text_box, 1, 3, 1, 1)
self._symb_rate_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
value=self.symb_rate_tb,
callback=self.set_symb_rate_tb,
label="Symbol rate",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(1).GridAdd(self._symb_rate_tb_text_box, 2, 1, 1, 1)
self._satellite_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.satellite_text,
callback=self.set_satellite_text,
label="Sat ",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._satellite_text_static_text, 1, 0, 1, 1)
self._samp_rate_st_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.samp_rate_st,
callback=self.set_samp_rate_st,
label="Sample rate",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._samp_rate_st_static_text, 1, 4, 1, 1)
_pll_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_pll_alpha_sl_sizer, 1, 0, 1, 1)
self._gain_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.gain_tb,
callback=self.set_gain_tb,
label="RX gain [dB]",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._gain_tb_text_box, 1, 2, 1, 1)
self._freq_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.freq_tb,
callback=self.set_freq_tb,
label="Frequency",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._freq_tb_text_box, 1, 1, 1, 1)
self._frames_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.frames_file_text_inf,
callback=self.set_frames_file_text_inf,
label="Frames filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._frames_file_text_inf_static_text, 3, 0, 1, 1)
self._deframer_sync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_sync_after_text,
callback=self.set_deframer_sync_after_text,
label="Deframe sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._deframer_sync_after_text_static_text, 3, 0, 1, 1)
self._deframer_nosync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_nosync_after_text,
callback=self.set_deframer_nosync_after_text,
label="Deframer out of sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._deframer_nosync_after_text_static_text, 4, 0, 1, 1)
self._deframer_check_sync_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_check_sync_text,
callback=self.set_deframer_check_sync_text,
label="Deframer check sync enable",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._deframer_check_sync_text_static_text, 2, 0, 1, 1)
self._datetime_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Local time of aquisition start",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._datetime_text_static_text, 1, 0, 1, 1)
_clock_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
label="Clock alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_clock_alpha_sl_sizer, 1, 1, 1, 1)
self._baseband_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.baseband_file_text_inf,
callback=self.set_baseband_file_text_inf,
label="Baseband filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._baseband_file_text_inf_static_text, 4, 0, 1, 1)
##################################################
# Blocks
##################################################
self.gr_agc_xx_0 = gr.agc_cc(10e-6, 1, 1.0/32767.0, 1.0)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(sps/2.0, clock_alpha**2/4.0, 0.5, clock_alpha, max_clock_offset)
self.gr_file_sink_0_0 = gr.file_sink(gr.sizeof_short*1, frames_file)
self.gr_file_sink_0_0.set_unbuffered(False)
self.gr_file_sink_0_1 = gr.file_sink(gr.sizeof_short*2, baseband_file)
self.gr_file_sink_0_1.set_unbuffered(False)
self.gr_float_to_complex_0 = gr.float_to_complex(1)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.gr_short_to_float_0 = gr.short_to_float()
self.gr_short_to_float_0_0 = gr.short_to_float()
self.gr_vector_to_streams_0 = gr.vector_to_streams(gr.sizeof_short*1, 2)
self.noaa_hrpt_decoder_0 = noaa.hrpt_decoder(True,False)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
self.poesweather_univ_hrpt_deframer_0 = poesweather.univ_hrpt_deframer(deframer_sync_check, 11090, deframer_insync_frames, deframer_outsync_frames)
self.usrp2_source_xxxx2_0 = usrp2.source_16sc()
self.usrp2_source_xxxx2_0.set_decim(decim_tb)
self.usrp2_source_xxxx2_0.set_center_freq(freq_tb)
self.usrp2_source_xxxx2_0.set_gain(gain_tb)
self.wxgui_fftsink1 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=5,
y_divs=10,
ref_level=65,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="Not filtered spectrum",
peak_hold=False,
)
self.rx_ntb.GetPage(0).Add(self.wxgui_fftsink1.win)
##################################################
# Connections
##################################################
self.connect((self.gr_float_to_complex_0, 0), (self.wxgui_fftsink1, 0))
self.connect((self.poesweather_univ_hrpt_deframer_0, 0), (self.noaa_hrpt_decoder_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.poesweather_univ_hrpt_deframer_0, 0))
self.connect((self.poesweather_univ_hrpt_deframer_0, 0), (self.gr_file_sink_0_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_binary_slicer_fb_0, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.gr_agc_xx_0, 0), (self.pll, 0))
self.connect((self.gr_float_to_complex_0, 0), (self.gr_agc_xx_0, 0))
self.connect((self.gr_vector_to_streams_0, 0), (self.gr_short_to_float_0, 0))
self.connect((self.gr_vector_to_streams_0, 1), (self.gr_short_to_float_0_0, 0))
self.connect((self.usrp2_source_xxxx2_0, 0), (self.gr_vector_to_streams_0, 0))
self.connect((self.usrp2_source_xxxx2_0, 0), (self.gr_file_sink_0_1, 0))
self.connect((self.gr_short_to_float_0_0, 0), (self.gr_float_to_complex_0, 1))
self.connect((self.gr_short_to_float_0, 0), (self.gr_float_to_complex_0, 0))
def __init__(self, fft_length, cp_length, half_sync, logging=False):
gr.hier_block2.__init__(
self,
"ofdm_sync_pn",
gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
gr.io_signature3(
3,
3, # Output signature
gr.sizeof_gr_complex, # delayed input
gr.sizeof_float, # fine frequency offset
gr.sizeof_char # timing indicator
))
if half_sync:
period = fft_length / 2
window = fft_length / 2
else: # full symbol
period = fft_length + cp_length
window = fft_length # makes the plateau cp_length long
# Calculate the frequency offset from the correlation of the preamble
x_corr = gr.multiply_cc()
self.connect(self, gr.conjugate_cc(), (x_corr, 0))
self.connect(self, gr.delay(gr.sizeof_gr_complex, period), (x_corr, 1))
P_d = gr.moving_average_cc(window, 1.0)
self.connect(x_corr, P_d)
P_d_angle = gr.complex_to_arg()
self.connect(P_d, P_d_angle)
# Get the power of the input signal to normalize the output of the correlation
R_d = gr.moving_average_ff(window, 1.0)
self.connect(self, gr.complex_to_mag_squared(), R_d)
R_d_squared = gr.multiply_ff() # this is retarded
self.connect(R_d, (R_d_squared, 0))
self.connect(R_d, (R_d_squared, 1))
M_d = gr.divide_ff()
self.connect(P_d, gr.complex_to_mag_squared(), (M_d, 0))
self.connect(R_d_squared, (M_d, 1))
# Now we need to detect peak of M_d
# NOTE: replaced fir_filter with moving_average for clarity
# the peak is up to cp_length long, but noisy, so average it out
#matched_filter_taps = [1.0/cp_length for i in range(cp_length)]
#matched_filter = gr.fir_filter_fff(1, matched_filter_taps)
matched_filter = gr.moving_average_ff(cp_length, 1.0 / cp_length)
# NOTE: the look_ahead parameter doesn't do anything
# these parameters are kind of magic, increase 1 and 2 (==) to be more tolerant
#peak_detect = raw.peak_detector_fb(0.55, 0.55, 30, 0.001)
peak_detect = raw.peak_detector_fb(0.25, 0.25, 30, 0.001)
# NOTE: gr.peak_detector_fb is broken!
#peak_detect = gr.peak_detector_fb(0.55, 0.55, 30, 0.001)
#peak_detect = gr.peak_detector_fb(0.45, 0.45, 30, 0.001)
#peak_detect = gr.peak_detector_fb(0.30, 0.30, 30, 0.001)
# offset by -1
self.connect(M_d, matched_filter, gr.add_const_ff(-1), peak_detect)
# peak_detect indicates the time M_d is highest, which is the end of the symbol.
# We should try to sample in the middle of the plateau!!
# FIXME until we figure out how to do this, just offset by cp_length/2
offset = 6 #cp_length/2
# nco(t) = P_d_angle(t-offset) sampled at peak_detect(t)
# modulate input(t - fft_length) by nco(t)
# signal to sample input(t) at t-offset
#
# We can't delay by < 0 so instead:
# input is delayed by fft_length
# P_d_angle is delayed by offset
# signal to sample is delayed by fft_length - offset
#
phi = gr.sample_and_hold_ff()
self.connect(peak_detect, (phi, 1))
self.connect(P_d_angle, gr.delay(gr.sizeof_float, offset), (phi, 0))
#self.connect(P_d_angle, matched_filter2, (phi,0)) # why isn't this better?!?
# FIXME: we add fft_length delay so that the preamble is nco corrected too
# BUT is this buffering worth it? consider implementing sync as a proper block
# delay the input signal to follow the frequency offset signal
self.connect(self, gr.delay(gr.sizeof_gr_complex,
(fft_length + offset)), (self, 0))
self.connect(phi, (self, 1))
self.connect(peak_detect, (self, 2))
if logging:
self.connect(matched_filter,
gr.file_sink(gr.sizeof_float, "sync-mf.dat"))
self.connect(M_d, gr.file_sink(gr.sizeof_float, "sync-M.dat"))
self.connect(P_d_angle,
gr.file_sink(gr.sizeof_float, "sync-angle.dat"))
self.connect(peak_detect,
gr.file_sink(gr.sizeof_char, "sync-peaks.datb"))
self.connect(phi, gr.file_sink(gr.sizeof_float, "sync-phi.dat"))
def __init__(self, baseband_file=os.environ['HOME'] + '/NOAA-XX.dat', satellite='NOAA-XX', decim=32, frames_file=os.environ['HOME'] + '/NOAA-XX.hrpt', sync_check=False):
gr.top_block.__init__(self, "NOAA HRPT Baseband To Frames")
##################################################
# Parameters
##################################################
self.baseband_file = baseband_file
self.satellite = satellite
self.decim = decim
self.frames_file = frames_file
self.sync_check = sync_check
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600*1109
self.sample_rate = sample_rate = 64e6/decim
self.sps = sps = sample_rate/sym_rate
self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/noaa_hrpt.conf'
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try: saved_pll_alpha = self._saved_pll_alpha_config.getfloat("satname", 'pll_alpha')
except: saved_pll_alpha = 0.01
self.saved_pll_alpha = saved_pll_alpha
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try: saved_clock_alpha = self._saved_clock_alpha_config.getfloat("satname", 'clock_alpha')
except: saved_clock_alpha = 0.01
self.saved_clock_alpha = saved_clock_alpha
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.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder(True,False)
self.frame_sink = gr.file_sink(gr.sizeof_short*1, frames_file)
self.frame_sink.set_unbuffered(False)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(sps/2.0, saved_clock_alpha**2/4.0, 0.5, saved_clock_alpha, max_clock_offset)
self.gr_file_source_0 = gr.file_source(gr.sizeof_short*1, baseband_file, False)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex()
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.pll = noaa.hrpt_pll_cf(saved_pll_alpha, saved_pll_alpha**2/4.0, max_carrier_offset)
self.poesweather_noaa_hrpt_deframer_0 = poesweather.noaa_hrpt_deframer(sync_check)
self.throttle = gr.throttle(gr.sizeof_short*1, sample_rate*10)
##################################################
# Connections
##################################################
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_binary_slicer_fb_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.poesweather_noaa_hrpt_deframer_0, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0), (self.decoder, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0), (self.frame_sink, 0))
self.connect((self.gr_file_source_0, 0), (self.throttle, 0))
self.connect((self.throttle, 0), (self.gr_interleaved_short_to_complex_0, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0), (self.agc, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
def __init__(self):
gr.top_block.__init__(self, "USRP HRPT Receiver")
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600*1109
self.sample_rate = sample_rate = 4e6
self.sps = sps = sample_rate/sym_rate
self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/config.conf'
self._pll_alpha_config = ConfigParser.ConfigParser()
self._pll_alpha_config.read(config_filename)
try: pll_alpha = self._pll_alpha_config.getfloat('usrp_rx_hrpt', 'pll_alpha')
except: pll_alpha = 0.01
self.pll_alpha = pll_alpha
self._output_filename_config = ConfigParser.ConfigParser()
self._output_filename_config.read(config_filename)
try: output_filename = self._output_filename_config.get('usrp_rx_hrpt', 'filename')
except: output_filename = 'frames.hrpt'
self.output_filename = output_filename
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)
self._gain_config = ConfigParser.ConfigParser()
self._gain_config.read(config_filename)
try: gain = self._gain_config.getfloat('usrp_rx_hrpt', 'gain')
except: gain = 35
self.gain = gain
self._freq_config = ConfigParser.ConfigParser()
self._freq_config.read(config_filename)
try: freq = self._freq_config.getfloat('usrp_rx_hrpt', 'freq')
except: freq = 1698e6
self.freq = freq
self._clock_alpha_config = ConfigParser.ConfigParser()
self._clock_alpha_config.read(config_filename)
try: clock_alpha = self._clock_alpha_config.getfloat('usrp_rx_hrpt', 'clock_alpha')
except: clock_alpha = 0.01
self.clock_alpha = clock_alpha
##################################################
# Blocks
##################################################
self.throttle = gr.throttle(gr.sizeof_short*1, 2*sample_rate)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex()
self.gr_file_source_0 = gr.file_source(gr.sizeof_short*1, "input_filename", False)
self.frame_sink = gr.file_sink(gr.sizeof_short*1, output_filename)
self.frame_sink.set_unbuffered(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.deframer = noaa.hrpt_deframer()
self.decoder = noaa.hrpt_decoder(True,True)
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
##################################################
# Connections
##################################################
self.connect((self.gr_moving_average_xx_0, 0), (self.digital_clock_recovery_mm_xx_0, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.deframer, 0), (self.frame_sink, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0), (self.agc, 0))
self.connect((self.throttle, 0), (self.gr_interleaved_short_to_complex_0, 0))
self.connect((self.gr_file_source_0, 0), (self.throttle, 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.deframer, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(
self, title="Communication System Graphical Analyzer (LAPS/UFCG)")
##################################################
# Default Variables
##################################################
self.sps = 2
self.snr = 20
self.symbol_rate = 140000
self.mod_type = "DBPSK"
self.view = 1
self.band = 200
self.excess_bw = 0.35
self.fading_flag = False
self.fdts = -8
self.fading_state_rx = False
##################################################
# Blocks Definition
##################################################
#A bit stream of 1's is generated at the source, scrambled,
#modulated and sent to the input of an AWGN channel.
#random.seed(42)
#self.source = gr.vector_source_b([random.randint(0, 2) for i in range(0,10^8)], True)
self.source = gr.vector_source_b((1, ), True, 1)
self.thottle = gr.throttle(gr.sizeof_char, 10e5)
self.scrambler = gr.scrambler_bb(0x40801, 0x92F72,
20) #Taxa de simbolos constante
self.pack = gr.unpacked_to_packed_bb(1, gr.GR_MSB_FIRST)
self.modulator = utils.mods[self.mod_type](self.sps,
excess_bw=self.excess_bw)
self.channel = utils.channel(1 / 10.0**(self.snr / 10.0), self.band,
self.symbol_rate, self.sps)
#The noisy signal is demodulated, descrambled and the BER
#is estimated by the ber_estim block using the receiver
#density of 0 bits.
self.demodulator = utils.demods[self.mod_type](
self.sps, excess_bw=self.excess_bw)
self.descrambler = gr.descrambler_bb(0x40801, 0x92F72, 20)
self.char2float = gr.char_to_float()
self.mov_average = gr.moving_average_ff(524288, 1 / 524288., 10000)
self.ber = utils.ber_estim()
#self.ber = utils.ber_estim_simple(3)
##################################################
# GUI Elements Definition
##################################################
#Defines an adds FFT Window to GUI
self.fft = fftsink.fft_sink_c(self.GetWin(),
sample_rate=self.symbol_rate * self.sps,
baseband_freq=5e6)
self.GridAdd(self.fft.win, 0, 3, 4, 3)
self.ctr = gr.complex_to_real(1)
#Defines and adds SNR slider to GUI
_snr_sizer = wx.BoxSizer(wx.HORIZONTAL)
self._snr_text_box = forms.text_box(parent=self.GetWin(),
sizer=_snr_sizer,
value=self.snr,
callback=self.callback_snr,
label=" SNR (dB)",
converter=forms.float_converter(),
proportion=0)
self._snr_slider = forms.slider(parent=self.GetWin(),
sizer=_snr_sizer,
value=self.snr,
callback=self.callback_snr,
minimum=0,
maximum=20,
style=wx.RA_HORIZONTAL,
proportion=1)
self.GridAdd(_snr_sizer, 4, 3, 1, 3)
#Defines and adds bandwidth slider to GUI
band_sizer = wx.BoxSizer(wx.HORIZONTAL)
self.band_text_box = forms.text_box(parent=self.GetWin(),
sizer=band_sizer,
value=self.band,
callback=self.callback_band,
label="Bandwidth (kHz)",
converter=forms.float_converter(),
proportion=0)
self.band_slider = forms.slider(parent=self.GetWin(),
sizer=band_sizer,
value=self.band,
callback=self.callback_band,
minimum=30,
maximum=200,
style=wx.RA_HORIZONTAL,
proportion=1)
self.GridAdd(band_sizer, 5, 3, 1, 3)
#Defines and adds Rayleigh GUI elements
fading_sizer = wx.BoxSizer(wx.HORIZONTAL)
self.fading_text_box = forms.text_box(
parent=self.GetWin(),
sizer=fading_sizer,
value=self.fdts,
callback=self.callback_fading,
label='Fading/log(FdTs)',
converter=forms.float_converter(),
proportion=0)
self.fading_slider = forms.slider(parent=self.GetWin(),
sizer=fading_sizer,
value=self.fdts,
callback=self.callback_fading,
minimum=-8,
maximum=-2,
style=wx.RA_HORIZONTAL,
proportion=1)
self.GridAdd(fading_sizer, 6, 3, 1, 3)
#Defines and adds modulation type chooser to GUI
self._mod_type_chooser = forms.radio_buttons(
parent=self.GetWin(),
value=self.mod_type,
callback=self.set_mod_type,
label="Modulation",
choices=["DBPSK", "DQPSK", "D8PSK"],
labels=["DBPSK", "DQPSK", "D8PSK"],
style=wx.RA_HORIZONTAL)
self.GridAdd(self._mod_type_chooser, 7, 4, 1, 2)
#Defines and adds signal source chooser
self.sig_src_chooser = forms.radio_buttons(
parent=self.GetWin(),
value=self.view,
callback=self.callback_view,
label="Signal Source",
choices=[0, 1],
labels=["Transmitter", "Receiver"],
style=wx.RA_VERTICAL)
self.GridAdd(self.sig_src_chooser, 7, 3, 1, 1)
#Definition of the of constellation window and attachment to the GUI
self.constel = constsink.const_sink_c(self.GetWin(),
title="RX Constellation Plot",
sample_rate=self.symbol_rate,
const_size=256,
mod=self.mod_type)
self.GridAdd(self.constel.win, 0, 0, 8, 3)
#Definition of the constellation sink window and attachment to the GUI
self.number_sink = bersink.number_sink_f(self.GetWin(),
sample_rate=self.symbol_rate)
self.GridAdd(self.number_sink.win, 8, 0, 1, 6)
##################################################
# Blocks Connections
##################################################
#The necessary block connections to the system work as described above.
self.connect(self.source, self.scrambler, self.thottle, self.pack)
#self.connect(self.source , self.thottle, self.pack)
self.connect(self.pack, self.modulator, self.channel, self.demodulator)
self.connect(self.channel, self.fft)
self.connect(self.demodulator.diffdec, self.constel)
self.connect(self.demodulator, self.descrambler, self.char2float,
self.mov_average)
self.connect(self.mov_average, self.ber, self.number_sink)
def __init__(self,
pll_alpha=0.005,
satellite='NOAA18',
decim=50,
gain=25,
clock_alpha=0.005,
freq=1707e6,
deframer_sync_check=True,
deframer_insync_frames=2,
deframer_outsync_frames=5,
symb_rate=600 * 1109,
baseband_file=os.environ['HOME'] + '/noaa_hrpt_baseband.dat',
frames_file=os.environ['HOME'] + '/noaa_hrpt_frames.hmf'):
grc_wxgui.top_block_gui.__init__(self,
title="USRP2 NOAA HRPT Receiver")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.pll_alpha = pll_alpha
self.satellite = satellite
self.decim = decim
self.gain = gain
self.clock_alpha = clock_alpha
self.freq = freq
self.deframer_sync_check = deframer_sync_check
self.deframer_insync_frames = deframer_insync_frames
self.deframer_outsync_frames = deframer_outsync_frames
self.symb_rate = symb_rate
self.baseband_file = baseband_file
self.frames_file = frames_file
##################################################
# Variables
##################################################
self.decim_tb = decim_tb = decim
self.symb_rate_tb = symb_rate_tb = symb_rate
self.samp_rate = samp_rate = 100e6 / decim_tb
self.sps = sps = samp_rate / symb_rate_tb
self.satellite_text = satellite_text = satellite
self.samp_rate_st = samp_rate_st = samp_rate
self.pll_alpha_sl = pll_alpha_sl = pll_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2 * math.pi * 100e3 / samp_rate
self.hs = hs = int(sps / 2.0)
self.gain_tb = gain_tb = gain
self.freq_tb = freq_tb = freq
self.frames_file_text_inf = frames_file_text_inf = frames_file
self.deframer_sync_after_text = deframer_sync_after_text = deframer_insync_frames
self.deframer_nosync_after_text = deframer_nosync_after_text = deframer_outsync_frames
self.deframer_check_sync_text = deframer_check_sync_text = deframer_sync_check
self.datetime_text = datetime_text = strftime("%A, %B %d %Y %H:%M:%S",
localtime())
self.clock_alpha_sl = clock_alpha_sl = clock_alpha
self.baseband_file_text_inf = baseband_file_text_inf = baseband_file
##################################################
# Notebooks
##################################################
self.rx_ntb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "USRP Receiver")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb),
"PLL demodulator and Clock sync")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Deframer")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Output")
self.Add(self.rx_ntb)
##################################################
# Controls
##################################################
self._decim_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.decim_tb,
callback=self.set_decim_tb,
label="Decimation",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._decim_tb_text_box, 1, 3, 1, 1)
self._symb_rate_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
value=self.symb_rate_tb,
callback=self.set_symb_rate_tb,
label="Symbol rate",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(1).GridAdd(self._symb_rate_tb_text_box, 2, 1, 1, 1)
self._satellite_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.satellite_text,
callback=self.set_satellite_text,
label="Sat ",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._satellite_text_static_text, 1, 0,
1, 1)
self._samp_rate_st_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.samp_rate_st,
callback=self.set_samp_rate_st,
label="Sample rate",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._samp_rate_st_static_text, 1, 4, 1,
1)
_pll_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_pll_alpha_sl_sizer, 1, 0, 1, 1)
self._gain_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.gain_tb,
callback=self.set_gain_tb,
label="RX gain [dB]",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._gain_tb_text_box, 1, 2, 1, 1)
self._freq_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.freq_tb,
callback=self.set_freq_tb,
label="Frequency",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._freq_tb_text_box, 1, 1, 1, 1)
self._frames_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.frames_file_text_inf,
callback=self.set_frames_file_text_inf,
label="Frames filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._frames_file_text_inf_static_text,
3, 0, 1, 1)
self._deframer_sync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_sync_after_text,
callback=self.set_deframer_sync_after_text,
label="Deframe sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._deframer_sync_after_text_static_text, 3, 0, 1, 1)
self._deframer_nosync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_nosync_after_text,
callback=self.set_deframer_nosync_after_text,
label="Deframer out of sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._deframer_nosync_after_text_static_text, 4, 0, 1, 1)
self._deframer_check_sync_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_check_sync_text,
callback=self.set_deframer_check_sync_text,
label="Deframer check sync enable",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._deframer_check_sync_text_static_text, 2, 0, 1, 1)
self._datetime_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Local time of aquisition start",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._datetime_text_static_text, 1, 0,
1, 1)
_clock_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
label="Clock alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_clock_alpha_sl_sizer, 1, 1, 1, 1)
self._baseband_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.baseband_file_text_inf,
callback=self.set_baseband_file_text_inf,
label="Baseband filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(
self._baseband_file_text_inf_static_text, 4, 0, 1, 1)
##################################################
# Blocks
##################################################
self.gr_agc_xx_0 = gr.agc_cc(10e-6, 1, 1.0 / 32767.0, 1.0)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(
sps / 2.0, clock_alpha**2 / 4.0, 0.5, clock_alpha,
max_clock_offset)
self.gr_file_sink_0_0 = gr.file_sink(gr.sizeof_short * 1, frames_file)
self.gr_file_sink_0_0.set_unbuffered(False)
self.gr_file_sink_0_1 = gr.file_sink(gr.sizeof_short * 2,
baseband_file)
self.gr_file_sink_0_1.set_unbuffered(False)
self.gr_float_to_complex_0 = gr.float_to_complex(1)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.gr_short_to_float_0 = gr.short_to_float()
self.gr_short_to_float_0_0 = gr.short_to_float()
self.gr_vector_to_streams_0 = gr.vector_to_streams(
gr.sizeof_short * 1, 2)
self.noaa_hrpt_decoder_0 = noaa.hrpt_decoder(True, False)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2 / 4.0,
max_carrier_offset)
self.poesweather_univ_hrpt_deframer_0 = poesweather.univ_hrpt_deframer(
deframer_sync_check, 11090, deframer_insync_frames,
deframer_outsync_frames)
self.usrp2_source_xxxx2_0 = usrp2.source_16sc()
self.usrp2_source_xxxx2_0.set_decim(decim_tb)
self.usrp2_source_xxxx2_0.set_center_freq(freq_tb)
self.usrp2_source_xxxx2_0.set_gain(gain_tb)
self.wxgui_fftsink1 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=5,
y_divs=10,
ref_level=65,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="Not filtered spectrum",
peak_hold=False,
)
self.rx_ntb.GetPage(0).Add(self.wxgui_fftsink1.win)
##################################################
# Connections
##################################################
self.connect((self.gr_float_to_complex_0, 0), (self.wxgui_fftsink1, 0))
self.connect((self.poesweather_univ_hrpt_deframer_0, 0),
(self.noaa_hrpt_decoder_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0),
(self.poesweather_univ_hrpt_deframer_0, 0))
self.connect((self.poesweather_univ_hrpt_deframer_0, 0),
(self.gr_file_sink_0_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.gr_binary_slicer_fb_0, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0),
(self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.gr_agc_xx_0, 0), (self.pll, 0))
self.connect((self.gr_float_to_complex_0, 0), (self.gr_agc_xx_0, 0))
self.connect((self.gr_vector_to_streams_0, 0),
(self.gr_short_to_float_0, 0))
self.connect((self.gr_vector_to_streams_0, 1),
(self.gr_short_to_float_0_0, 0))
self.connect((self.usrp2_source_xxxx2_0, 0),
(self.gr_vector_to_streams_0, 0))
self.connect((self.usrp2_source_xxxx2_0, 0),
(self.gr_file_sink_0_1, 0))
self.connect((self.gr_short_to_float_0_0, 0),
(self.gr_float_to_complex_0, 1))
self.connect((self.gr_short_to_float_0, 0),
(self.gr_float_to_complex_0, 0))
def __init__(self, sync_check=False, decim=32, freq=1698e6, gain=35, side="A", frames_file=os.environ['HOME'] + '/NOAA-XX.hrpt', satellite='NOAA-XX'):
gr.top_block.__init__(self, "USRP NOAA HRPT Receiver")
##################################################
# Parameters
##################################################
self.sync_check = sync_check
self.decim = decim
self.freq = freq
self.gain = gain
self.side = side
self.frames_file = frames_file
self.satellite = satellite
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600*1109
self.samp_rate = samp_rate = 64e6/decim
self.sps = sps = samp_rate/sym_rate
self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/noaa_hrpt.conf'
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try: saved_pll_alpha = self._saved_pll_alpha_config.getfloat("satname", 'pll_alpha')
except: saved_pll_alpha = 0.005
self.saved_pll_alpha = saved_pll_alpha
self._saved_gain_config = ConfigParser.ConfigParser()
self._saved_gain_config.read(config_filename)
try: saved_gain = self._saved_gain_config.getfloat("satname", 'gain')
except: saved_gain = gain
self.saved_gain = saved_gain
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try: saved_clock_alpha = self._saved_clock_alpha_config.getfloat("satname", 'clock_alpha')
except: saved_clock_alpha = 0.001
self.saved_clock_alpha = saved_clock_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/samp_rate
self.hs = hs = int(sps/2.0)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-5, 1.0, 1.0/32768.0, 1.0)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(sps/2.0, saved_clock_alpha**2/4.0, 0.5, saved_clock_alpha, max_clock_offset)
self.gr_file_sink_0_0 = gr.file_sink(gr.sizeof_short*1, frames_file)
self.gr_file_sink_0_0.set_unbuffered(False)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex()
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.noaa_hrpt_decoder_0 = noaa.hrpt_decoder(True,False)
self.pll = noaa.hrpt_pll_cf(saved_pll_alpha, saved_pll_alpha**2/4.0, max_carrier_offset)
self.poesweather_noaa_hrpt_deframer_0 = poesweather.noaa_hrpt_deframer(sync_check)
self.usrp_simple_source_x_0 = grc_usrp.simple_source_s(which=0, side=side, rx_ant="RXA")
self.usrp_simple_source_x_0.set_decim_rate(decim)
self.usrp_simple_source_x_0.set_frequency(freq, verbose=True)
self.usrp_simple_source_x_0.set_gain(gain)
##################################################
# Connections
##################################################
self.connect((self.gr_interleaved_short_to_complex_0, 0), (self.agc, 0))
self.connect((self.usrp_simple_source_x_0, 0), (self.gr_interleaved_short_to_complex_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_binary_slicer_fb_0, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0), (self.gr_file_sink_0_0, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0), (self.noaa_hrpt_decoder_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.poesweather_noaa_hrpt_deframer_0, 0))
def __init__(self):
gr.top_block.__init__(self, "USRP HRPT Receiver")
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600 * 1109
self.sample_rate = sample_rate = 4e6
self.sps = sps = sample_rate / sym_rate
self.config_filename = config_filename = os.environ["HOME"] + "/.gnuradio/config.conf"
self._pll_alpha_config = ConfigParser.ConfigParser()
self._pll_alpha_config.read(config_filename)
try:
pll_alpha = self._pll_alpha_config.getfloat("usrp_rx_hrpt", "pll_alpha")
except:
pll_alpha = 0.01
self.pll_alpha = pll_alpha
self._output_filename_config = ConfigParser.ConfigParser()
self._output_filename_config.read(config_filename)
try:
output_filename = self._output_filename_config.get("usrp_rx_hrpt", "filename")
except:
output_filename = "frames.hrpt"
self.output_filename = output_filename
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)
self._gain_config = ConfigParser.ConfigParser()
self._gain_config.read(config_filename)
try:
gain = self._gain_config.getfloat("usrp_rx_hrpt", "gain")
except:
gain = 35
self.gain = gain
self._freq_config = ConfigParser.ConfigParser()
self._freq_config.read(config_filename)
try:
freq = self._freq_config.getfloat("usrp_rx_hrpt", "freq")
except:
freq = 1698e6
self.freq = freq
self._clock_alpha_config = ConfigParser.ConfigParser()
self._clock_alpha_config.read(config_filename)
try:
clock_alpha = self._clock_alpha_config.getfloat("usrp_rx_hrpt", "clock_alpha")
except:
clock_alpha = 0.01
self.clock_alpha = clock_alpha
self._addr_config = ConfigParser.ConfigParser()
self._addr_config.read(config_filename)
try:
addr = self._addr_config.get("usrp_rx_hrpt", "addr")
except:
addr = ""
self.addr = addr
##################################################
# Blocks
##################################################
self.uhd_usrp_source_0 = uhd.usrp_source(device_addr=addr, io_type=uhd.io_type.COMPLEX_FLOAT32, num_channels=1)
self.uhd_usrp_source_0.set_samp_rate(sample_rate)
self.uhd_usrp_source_0.set_center_freq(freq, 0)
self.uhd_usrp_source_0.set_gain(0, 0)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha ** 2 / 4.0, max_carrier_offset)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.frame_sink = gr.file_sink(gr.sizeof_short * 1, output_filename)
self.frame_sink.set_unbuffered(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.deframer = noaa.hrpt_deframer()
self.decoder = noaa.hrpt_decoder(True, True)
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
##################################################
# Connections
##################################################
self.connect((self.gr_moving_average_xx_0, 0), (self.digital_clock_recovery_mm_xx_0, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.agc, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.digital_binary_slicer_fb_0, 0), (self.deframer, 0))
self.connect((self.digital_clock_recovery_mm_xx_0, 0), (self.digital_binary_slicer_fb_0, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.deframer, 0), (self.frame_sink, 0))
def __init__(self, options, args, queue):
gr.top_block.__init__(self)
self.options = options
self.args = args
rate = int(options.rate)
use_resampler = False
if options.filename is None and options.udp is None and not options.rtlsdr:
#UHD source by default
from gnuradio import uhd
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()
elif options.rtlsdr: #RTLSDR dongle
import osmosdr
self.u = osmosdr.source_c()
self.u.set_sample_rate(2.4e6) #fixed for RTL dongles
if not self.u.set_center_freq(options.freq):
print "Failed to set initial frequency"
self.u.set_gain_mode(0) #manual gain mode
if options.gain is None:
options.gain = 49
self.u.set_gain(options.gain)
print "Gain is %i" % self.u.get_gain()
use_resampler = True
else:
if options.filename is not None:
self.u = gr.file_source(gr.sizeof_gr_complex, options.filename)
elif options.udp is not None:
self.u = gr.udp_source(gr.sizeof_gr_complex, "localhost", options.udp)
else:
raise Exception("No valid source selected")
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)
self.preamble = air_modes.modes_preamble(rate, options.threshold)
#self.framer = air_modes.modes_framer(rate)
self.slicer = air_modes.modes_slicer(rate, queue)
if use_resampler:
self.lpfiltcoeffs = gr.firdes.low_pass(1, 5*2.4e6, 1.2e6, 300e3)
self.resample = blks2.rational_resampler_ccf(interpolation=5, decimation=3, taps=self.lpfiltcoeffs)
self.connect(self.u, self.resample, self.demod)
else:
self.connect(self.u, 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):
grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver")
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600 * 1109
self.sample_rate = sample_rate = 4e6
self.config_filename = config_filename = os.environ[
'HOME'] + '/.gnuradio/config.conf'
self.sps = sps = sample_rate / sym_rate
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try:
saved_pll_alpha = self._saved_pll_alpha_config.getfloat(
'usrp_rx_hrpt', 'pll_alpha')
except:
saved_pll_alpha = 0.01
self.saved_pll_alpha = saved_pll_alpha
self._saved_gain_config = ConfigParser.ConfigParser()
self._saved_gain_config.read(config_filename)
try:
saved_gain = self._saved_gain_config.getfloat(
'usrp_rx_hrpt', 'gain')
except:
saved_gain = 35
self.saved_gain = saved_gain
self._saved_freq_config = ConfigParser.ConfigParser()
self._saved_freq_config.read(config_filename)
try:
saved_freq = self._saved_freq_config.getfloat(
'usrp_rx_hrpt', 'freq')
except:
saved_freq = 1698e6
self.saved_freq = saved_freq
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try:
saved_clock_alpha = self._saved_clock_alpha_config.getfloat(
'usrp_rx_hrpt', 'clock_alpha')
except:
saved_clock_alpha = 0.01
self.saved_clock_alpha = saved_clock_alpha
self._addr_config = ConfigParser.ConfigParser()
self._addr_config.read(config_filename)
try:
addr = self._addr_config.get('usrp_rx_hrpt', 'addr')
except:
addr = ""
self.addr = addr
self.rate_text = rate_text = sample_rate
self.pll_alpha = pll_alpha = saved_pll_alpha
self._output_filename_config = ConfigParser.ConfigParser()
self._output_filename_config.read(config_filename)
try:
output_filename = self._output_filename_config.get(
'usrp_rx_hrpt', 'filename')
except:
output_filename = 'frames.hrpt'
self.output_filename = output_filename
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)
self.gain = gain = saved_gain
self.freq = freq = saved_freq
self.clock_alpha = clock_alpha = saved_clock_alpha
self.addr_text = addr_text = addr
##################################################
# Blocks
##################################################
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
value=self.freq,
callback=self.set_freq,
label="Frequency",
converter=forms.float_converter(),
)
self.GridAdd(self._freq_text_box, 0, 0, 1, 1)
self.displays = self.displays = wx.Notebook(self.GetWin(),
style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Spectrum")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Demod")
self.GridAdd(self.displays, 2, 0, 1, 4)
_clock_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
label="Clock Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_clock_alpha_sizer, 0, 3, 1, 1)
self.uhd_usrp_source_0 = uhd.usrp_source(
device_addr=addr,
io_type=uhd.io_type.COMPLEX_FLOAT32,
num_channels=1,
)
self.uhd_usrp_source_0.set_samp_rate(sample_rate)
self.uhd_usrp_source_0.set_center_freq(freq, 0)
self.uhd_usrp_source_0.set_gain(0, 0)
self.rx_fft = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=5,
y_divs=8,
ref_level=-5,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.1,
title="RX Spectrum",
peak_hold=False,
size=(640, 360),
)
self.displays.GetPage(0).GridAdd(self.rx_fft.win, 0, 0, 1, 1)
self._rate_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.rate_text,
callback=self.set_rate_text,
label="Baseband Rate",
converter=forms.float_converter(),
)
self.GridAdd(self._rate_text_static_text, 1, 1, 1, 1)
_pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_pll_alpha_sizer, 0, 2, 1, 1)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2 / 4.0,
max_carrier_offset)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
label="RX Gain",
converter=forms.float_converter(),
proportion=0,
)
self._gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
minimum=0,
maximum=100,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 0, 1, 1, 1)
self.frame_sink = gr.file_sink(gr.sizeof_short * 1, output_filename)
self.frame_sink.set_unbuffered(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.demod_scope = scopesink2.scope_sink_f(
self.displays.GetPage(1).GetWin(),
title="Post-Demod",
sample_rate=sym_rate * 2.0,
v_scale=0.5,
v_offset=0,
t_scale=10.0 / sym_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
trig_mode=gr.gr_TRIG_MODE_AUTO,
y_axis_label="Counts",
)
self.displays.GetPage(1).GridAdd(self.demod_scope.win, 0, 0, 1, 1)
self.deframer = noaa.hrpt_deframer()
self.decoder = noaa.hrpt_decoder(True, True)
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self._addr_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.addr_text,
callback=self.set_addr_text,
label="USRP Addr",
converter=forms.str_converter(),
)
self.GridAdd(self._addr_text_static_text, 1, 0, 1, 1)
##################################################
# Connections
##################################################
self.connect((self.deframer, 0), (self.frame_sink, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.agc, 0), (self.rx_fft, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.agc, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.demod_scope, 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.deframer, 0))
def __init__(self, frames_file=os.environ['HOME'] + '/NOAA-XX.hrpt', decim=32, satellite='NOAA-XX', baseband_file=os.environ['HOME'] + '/NOAA-XX.dat', sync_check=False):
grc_wxgui.top_block_gui.__init__(self, title="NOAA HRPT Baseband To Frames")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.frames_file = frames_file
self.decim = decim
self.satellite = satellite
self.baseband_file = baseband_file
self.sync_check = sync_check
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600*1109
self.sample_rate = sample_rate = 64e6/decim
self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/noaa_hrpt.conf'
self.sps = sps = sample_rate/sym_rate
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try: saved_pll_alpha = self._saved_pll_alpha_config.getfloat("satname", 'pll_alpha')
except: saved_pll_alpha = 0.01
self.saved_pll_alpha = saved_pll_alpha
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try: saved_clock_alpha = self._saved_clock_alpha_config.getfloat("satname", 'clock_alpha')
except: saved_clock_alpha = 0.01
self.saved_clock_alpha = saved_clock_alpha
self.sync_check_txt = sync_check_txt = sync_check
self.satname_txt = satname_txt = satellite
self.pll_alpha = pll_alpha = saved_pll_alpha
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)
self.frames_file_txt = frames_file_txt = frames_file
self.decim_txt = decim_txt = decim
self.clock_alpha = clock_alpha = saved_clock_alpha
self.baseband_file_txt = baseband_file_txt = baseband_file
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "NOAA HRPT Spectrum")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Information")
self.Add(self.displays)
##################################################
# Controls
##################################################
self._sync_check_txt_static_text = forms.static_text(
parent=self.GetWin(),
value=self.sync_check_txt,
callback=self.set_sync_check_txt,
label="Sync check",
converter=forms.int_converter(),
)
self.GridAdd(self._sync_check_txt_static_text, 0, 3, 1, 1)
self._satname_txt_static_text = forms.static_text(
parent=self.GetWin(),
value=self.satname_txt,
callback=self.set_satname_txt,
label="Satellite",
converter=forms.str_converter(),
)
self.GridAdd(self._satname_txt_static_text, 0, 0, 1, 1)
_pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_pll_alpha_sizer, 1, 0, 1, 1)
self._frames_file_txt_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.frames_file_txt,
callback=self.set_frames_file_txt,
label="Frames output filename",
converter=forms.str_converter(),
)
self.displays.GetPage(1).GridAdd(self._frames_file_txt_static_text, 2, 0, 1, 1)
self._decim_txt_static_text = forms.static_text(
parent=self.GetWin(),
value=self.decim_txt,
callback=self.set_decim_txt,
label="Decimation",
converter=forms.str_converter(),
)
self.GridAdd(self._decim_txt_static_text, 0, 1, 1, 1)
_clock_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
label="Clock Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_clock_alpha_sizer, 1, 1, 1, 1)
self._baseband_file_txt_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.baseband_file_txt,
callback=self.set_baseband_file_txt,
label="Baseband filename",
converter=forms.str_converter(),
)
self.displays.GetPage(1).GridAdd(self._baseband_file_txt_static_text, 1, 0, 1, 1)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder(True,False)
self.frame_sink = gr.file_sink(gr.sizeof_short*1, "/home/jerry/NOAA-XX.hrpt")
self.frame_sink.set_unbuffered(False)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(sps/2.0, clock_alpha**2/4.0, 0.5, clock_alpha, max_clock_offset)
self.gr_file_source_0 = gr.file_source(gr.sizeof_short*1, "/home/jerry/hrpt/baseband/NOAA-18/2011-01-07T132821-NOAA-18.dat", False)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex()
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
self.poesweather_noaa_hrpt_deframer_0 = poesweather.noaa_hrpt_deframer(sync_check)
self.rx_fft = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=5,
y_divs=10,
ref_level=45,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="NOAA HRPT Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).Add(self.rx_fft.win)
self.throttle = gr.throttle(gr.sizeof_short*1, sample_rate*10)
##################################################
# Connections
##################################################
self.connect((self.gr_interleaved_short_to_complex_0, 0), (self.agc, 0))
self.connect((self.throttle, 0), (self.gr_interleaved_short_to_complex_0, 0))
self.connect((self.gr_file_source_0, 0), (self.throttle, 0))
self.connect((self.agc, 0), (self.rx_fft, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0), (self.frame_sink, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0), (self.decoder, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.poesweather_noaa_hrpt_deframer_0, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_binary_slicer_fb_0, 0))
def __init__(self):
gr.top_block.__init__(self, "Usrp Rx Hrpt Nogui")
##################################################
# Variables
##################################################
self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/config.conf'
self._decim_config = ConfigParser.ConfigParser()
self._decim_config.read(config_filename)
try: decim = self._decim_config.getfloat('usrp_rx_hrpt', 'decim')
except: decim = 32
self.decim = decim
self.sym_rate = sym_rate = 600*1109
self.sample_rate = sample_rate = 64e6/decim
self.sps = sps = sample_rate/sym_rate
self._side_config = ConfigParser.ConfigParser()
self._side_config.read(config_filename)
try: side = self._side_config.get('usrp_rx_hrpt', 'side')
except: side = 'A'
self.side = side
self._pll_alpha_config = ConfigParser.ConfigParser()
self._pll_alpha_config.read(config_filename)
try: pll_alpha = self._pll_alpha_config.getfloat('usrp_rx_hrpt', 'pll_alpha')
except: pll_alpha = 0.01
self.pll_alpha = pll_alpha
self._output_filename_config = ConfigParser.ConfigParser()
self._output_filename_config.read(config_filename)
try: output_filename = self._output_filename_config.get('usrp_rx_hrpt', 'filename')
except: output_filename = 'frames.hrpt'
self.output_filename = output_filename
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)
self._gain_config = ConfigParser.ConfigParser()
self._gain_config.read(config_filename)
try: gain = self._gain_config.getfloat('usrp_rx_hrpt', 'gain')
except: gain = 35
self.gain = gain
self._freq_config = ConfigParser.ConfigParser()
self._freq_config.read(config_filename)
try: freq = self._freq_config.getfloat('usrp_rx_hrpt', 'freq')
except: freq = 1698e6
self.freq = freq
self._clock_alpha_config = ConfigParser.ConfigParser()
self._clock_alpha_config.read(config_filename)
try: clock_alpha = self._clock_alpha_config.getfloat('usrp_rx_hrpt', 'clock_alpha')
except: clock_alpha = 0.01
self.clock_alpha = clock_alpha
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder(True,True)
self.deframer = noaa.hrpt_deframer()
self.frame_sink = gr.file_sink(gr.sizeof_short*1, output_filename)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(sps/2.0, clock_alpha**2/4.0, 0.5, clock_alpha, max_clock_offset)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
self.usrp_source = grc_usrp.simple_source_c(which=0, side=side, rx_ant="RXA")
self.usrp_source.set_decim_rate(decim)
self.usrp_source.set_frequency(freq, verbose=True)
self.usrp_source.set_gain(gain)
##################################################
# Connections
##################################################
self.connect((self.usrp_source, 0), (self.agc, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_binary_slicer_fb_0, 0))
self.connect((self.deframer, 0), (self.frame_sink, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.deframer, 0))
def __init__(self, fft_length, cp_length, half_sync, logging=False):
gr.hier_block2.__init__(self, "ofdm_sync_pn",
gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
gr.io_signature3(3, 3, # Output signature
gr.sizeof_gr_complex, # delayed input
gr.sizeof_float, # fine frequency offset
gr.sizeof_char # timing indicator
))
if half_sync:
period = fft_length/2
window = fft_length/2
else: # full symbol
period = fft_length + cp_length
window = fft_length # makes the plateau cp_length long
# Calculate the frequency offset from the correlation of the preamble
x_corr = gr.multiply_cc()
self.connect(self, gr.conjugate_cc(), (x_corr, 0))
self.connect(self, gr.delay(gr.sizeof_gr_complex, period), (x_corr, 1))
P_d = gr.moving_average_cc(window, 1.0)
self.connect(x_corr, P_d)
P_d_angle = gr.complex_to_arg()
self.connect(P_d, P_d_angle)
# Get the power of the input signal to normalize the output of the correlation
R_d = gr.moving_average_ff(window, 1.0)
self.connect(self, gr.complex_to_mag_squared(), R_d)
R_d_squared = gr.multiply_ff() # this is retarded
self.connect(R_d, (R_d_squared, 0))
self.connect(R_d, (R_d_squared, 1))
M_d = gr.divide_ff()
self.connect(P_d, gr.complex_to_mag_squared(), (M_d, 0))
self.connect(R_d_squared, (M_d, 1))
# Now we need to detect peak of M_d
# NOTE: replaced fir_filter with moving_average for clarity
# the peak is up to cp_length long, but noisy, so average it out
#matched_filter_taps = [1.0/cp_length for i in range(cp_length)]
#matched_filter = gr.fir_filter_fff(1, matched_filter_taps)
matched_filter = gr.moving_average_ff(cp_length, 1.0/cp_length)
# NOTE: the look_ahead parameter doesn't do anything
# these parameters are kind of magic, increase 1 and 2 (==) to be more tolerant
#peak_detect = raw.peak_detector_fb(0.55, 0.55, 30, 0.001)
peak_detect = raw.peak_detector_fb(0.25, 0.25, 30, 0.001)
# NOTE: gr.peak_detector_fb is broken!
#peak_detect = gr.peak_detector_fb(0.55, 0.55, 30, 0.001)
#peak_detect = gr.peak_detector_fb(0.45, 0.45, 30, 0.001)
#peak_detect = gr.peak_detector_fb(0.30, 0.30, 30, 0.001)
# offset by -1
self.connect(M_d, matched_filter, gr.add_const_ff(-1), peak_detect)
# peak_detect indicates the time M_d is highest, which is the end of the symbol.
# We should try to sample in the middle of the plateau!!
# FIXME until we figure out how to do this, just offset by cp_length/2
offset = 6 #cp_length/2
# nco(t) = P_d_angle(t-offset) sampled at peak_detect(t)
# modulate input(t - fft_length) by nco(t)
# signal to sample input(t) at t-offset
#
# We can't delay by < 0 so instead:
# input is delayed by fft_length
# P_d_angle is delayed by offset
# signal to sample is delayed by fft_length - offset
#
phi = gr.sample_and_hold_ff()
self.connect(peak_detect, (phi,1))
self.connect(P_d_angle, gr.delay(gr.sizeof_float, offset), (phi,0))
#self.connect(P_d_angle, matched_filter2, (phi,0)) # why isn't this better?!?
# FIXME: we add fft_length delay so that the preamble is nco corrected too
# BUT is this buffering worth it? consider implementing sync as a proper block
# delay the input signal to follow the frequency offset signal
self.connect(self, gr.delay(gr.sizeof_gr_complex, (fft_length+offset)), (self,0))
self.connect(phi, (self,1))
self.connect(peak_detect, (self,2))
if logging:
self.connect(matched_filter, gr.file_sink(gr.sizeof_float, "sync-mf.dat"))
self.connect(M_d, gr.file_sink(gr.sizeof_float, "sync-M.dat"))
self.connect(P_d_angle, gr.file_sink(gr.sizeof_float, "sync-angle.dat"))
self.connect(peak_detect, gr.file_sink(gr.sizeof_char, "sync-peaks.datb"))
self.connect(phi, gr.file_sink(gr.sizeof_float, "sync-phi.dat"))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver")
##################################################
# Variables
##################################################
self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/config.conf'
self._decim_config = ConfigParser.ConfigParser()
self._decim_config.read(config_filename)
try: decim = self._decim_config.getfloat('usrp_rx_hrpt', 'decim')
except: decim = 32
self.decim = decim
self.sym_rate = sym_rate = 600*1109
self.sample_rate = sample_rate = 64e6/decim
self.sps = sps = sample_rate/sym_rate
self._side_config = ConfigParser.ConfigParser()
self._side_config.read(config_filename)
try: side = self._side_config.get('usrp_rx_hrpt', 'side')
except: side = 'A'
self.side = side
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try: saved_pll_alpha = self._saved_pll_alpha_config.getfloat('usrp_rx_hrpt', 'pll_alpha')
except: saved_pll_alpha = 0.01
self.saved_pll_alpha = saved_pll_alpha
self._saved_gain_config = ConfigParser.ConfigParser()
self._saved_gain_config.read(config_filename)
try: saved_gain = self._saved_gain_config.getfloat('usrp_rx_hrpt', 'gain')
except: saved_gain = 35
self.saved_gain = saved_gain
self._saved_freq_config = ConfigParser.ConfigParser()
self._saved_freq_config.read(config_filename)
try: saved_freq = self._saved_freq_config.getfloat('usrp_rx_hrpt', 'freq')
except: saved_freq = 1698e6
self.saved_freq = saved_freq
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try: saved_clock_alpha = self._saved_clock_alpha_config.getfloat('usrp_rx_hrpt', 'clock_alpha')
except: saved_clock_alpha = 0.01
self.saved_clock_alpha = saved_clock_alpha
self.side_text = side_text = side
self.pll_alpha = pll_alpha = saved_pll_alpha
self._output_filename_config = ConfigParser.ConfigParser()
self._output_filename_config.read(config_filename)
try: output_filename = self._output_filename_config.get('usrp_rx_hrpt', 'filename')
except: output_filename = 'frames.hrpt'
self.output_filename = output_filename
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)
self.gain = gain = saved_gain
self.freq = freq = saved_freq
self.decim_text = decim_text = decim
self.clock_alpha = clock_alpha = saved_clock_alpha
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Spectrum")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Demod")
self.GridAdd(self.displays, 2, 0, 1, 4)
##################################################
# Controls
##################################################
self._side_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.side_text,
callback=self.set_side_text,
label="USRP Side",
converter=forms.str_converter(),
)
self.GridAdd(self._side_text_static_text, 1, 0, 1, 1)
_pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_pll_alpha_sizer, 0, 2, 1, 1)
_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
label="RX Gain",
converter=forms.float_converter(),
proportion=0,
)
self._gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
minimum=0,
maximum=100,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 0, 1, 1, 1)
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
value=self.freq,
callback=self.set_freq,
label="Frequency",
converter=forms.float_converter(),
)
self.GridAdd(self._freq_text_box, 0, 0, 1, 1)
self._decim_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.decim_text,
callback=self.set_decim_text,
label="Decimation",
converter=forms.float_converter(),
)
self.GridAdd(self._decim_text_static_text, 1, 1, 1, 1)
_clock_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
label="Clock Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_clock_alpha_sizer, 0, 3, 1, 1)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder(True,True)
self.deframer = noaa.hrpt_deframer()
self.demod_scope = scopesink2.scope_sink_f(
self.displays.GetPage(1).GetWin(),
title="Post-Demod",
sample_rate=sym_rate*2.0,
v_scale=0.5,
v_offset=0,
t_scale=10.0/sym_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(1).GridAdd(self.demod_scope.win, 0, 0, 1, 1)
self.frame_sink = gr.file_sink(gr.sizeof_short*1, output_filename)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(sps/2.0, clock_alpha**2/4.0, 0.5, clock_alpha, max_clock_offset)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
self.rx_fft = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=5,
y_divs=8,
ref_level=-5,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.1,
title="RX Spectrum",
peak_hold=False,
size=(640, 360),
)
self.displays.GetPage(0).GridAdd(self.rx_fft.win, 0, 0, 1, 1)
self.usrp_source = grc_usrp.simple_source_c(which=0, side=side, rx_ant="RXA")
self.usrp_source.set_decim_rate(decim)
self.usrp_source.set_frequency(freq, verbose=True)
self.usrp_source.set_gain(gain)
##################################################
# Connections
##################################################
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_binary_slicer_fb_0, 0))
self.connect((self.deframer, 0), (self.frame_sink, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.demod_scope, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.usrp_source, 0), (self.agc, 0))
self.connect((self.agc, 0), (self.rx_fft, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.deframer, 0))
def __init__(
self,
decim=50,
satellite='Meteor-M-N1',
frames_file=os.environ['HOME'] + '/MN1_hrpt_frames.hmf',
baseband_file="/home/martin/GNURadioData/hrpt/baseband/HRPT_Meteor-M-N1_2011-02-27_09-30-46_UTC_U2_d50.sam",
symb_rate=600 * 1109,
clock_alpha=0.050,
pll_alpha=0.05,
deframer_outsync_frames=100,
deframer_insync_frames=3,
deframer_sync_check=False):
grc_wxgui.top_block_gui.__init__(
self, title="Meteor M-N1 HRPT Receiver from baseband file")
_icon_path = "/home/martin/.local/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.decim = decim
self.satellite = satellite
self.frames_file = frames_file
self.baseband_file = baseband_file
self.symb_rate = symb_rate
self.clock_alpha = clock_alpha
self.pll_alpha = pll_alpha
self.deframer_outsync_frames = deframer_outsync_frames
self.deframer_insync_frames = deframer_insync_frames
self.deframer_sync_check = deframer_sync_check
##################################################
# Variables
##################################################
self.decim_tb = decim_tb = decim
self.symb_rate_tb = symb_rate_tb = symb_rate
self.samp_rate = samp_rate = 100e6 / decim_tb
self.sps = sps = samp_rate / symb_rate_tb
self.v = v = True
self.satellite_text = satellite_text = satellite
self.samp_rate_st = samp_rate_st = samp_rate
self.pll_alpha_sl = pll_alpha_sl = pll_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2 * math.pi * 100e3 / samp_rate
self.hs = hs = int(sps / 2.0)
self.frames_file_text_inf = frames_file_text_inf = frames_file
self.deframer_sync_after_text = deframer_sync_after_text = deframer_insync_frames
self.deframer_nosync_after_text = deframer_nosync_after_text = deframer_outsync_frames
self.deframer_check_sync_text = deframer_check_sync_text = deframer_sync_check
self.datetime_text = datetime_text = strftime("%A, %B %d %Y %H:%M:%S",
localtime())
self.clock_alpha_sl = clock_alpha_sl = clock_alpha
self.baseband_file_text_inf = baseband_file_text_inf = baseband_file
##################################################
# Blocks
##################################################
self.rx_ntb = self.rx_ntb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Input baseband")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb),
"PLL demodulator and Clock sync")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Deframer")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Output")
self.Add(self.rx_ntb)
self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.GetWin(),
title="Scope Plot",
sample_rate=samp_rate,
v_scale=0,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=False,
num_inputs=1,
trig_mode=gr.gr_TRIG_MODE_AUTO,
y_axis_label="Counts",
)
self.Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink1 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=5,
y_divs=10,
ref_level=50,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="Not filtered spectrum",
peak_hold=False,
)
self.rx_ntb.GetPage(0).Add(self.wxgui_fftsink1.win)
self._v_check_box = forms.check_box(
parent=self.GetWin(),
value=self.v,
callback=self.set_v,
label="Open",
true=True,
false=False,
)
self.Add(self._v_check_box)
self._symb_rate_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
value=self.symb_rate_tb,
callback=self.set_symb_rate_tb,
label="Symbol rate",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(1).GridAdd(self._symb_rate_tb_text_box, 2, 1, 1, 1)
self._satellite_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.satellite_text,
callback=self.set_satellite_text,
label="Sat ",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._satellite_text_static_text, 1, 0,
1, 1)
self._samp_rate_st_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.samp_rate_st,
callback=self.set_samp_rate_st,
label="Sample rate",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._samp_rate_st_static_text, 1, 4, 1,
1)
self.poesweather_meteor_cadu_deframer_0 = poesweather.meteor_cadu_deframer(
deframer_sync_check, 256, deframer_insync_frames,
deframer_outsync_frames)
_pll_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_pll_alpha_sl_sizer, 1, 0, 1, 1)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2 / 4.0,
max_carrier_offset)
self.gr_throttle_0 = gr.throttle(gr.sizeof_short * 1, samp_rate * 10)
self.gr_multiply_const_vxx_0 = gr.multiply_const_vff((-1, ))
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.gr_file_source_0_0 = gr.file_source(
gr.sizeof_short * 1,
"/home/martin/hrpt/baseband/METEOR-M-1/2011/07/24/METEOR-M-1_2011-07-24T113448_U2d50.sam",
False)
self.gr_file_sink_0_0_0 = gr.file_sink(gr.sizeof_char * 1,
"frames.mn1")
self.gr_file_sink_0_0_0.set_unbuffered(False)
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(
sps / 2.0, clock_alpha**2 / 4.0, 0.5, clock_alpha,
max_clock_offset)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_agc_xx_0_0 = gr.agc_cc(10e-6, 1, 1.0 / 32767.0, 1.0)
self._frames_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.frames_file_text_inf,
callback=self.set_frames_file_text_inf,
label="Frames filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._frames_file_text_inf_static_text,
3, 0, 1, 1)
self._deframer_sync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_sync_after_text,
callback=self.set_deframer_sync_after_text,
label="Deframe sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._deframer_sync_after_text_static_text, 3, 0, 1, 1)
self._deframer_nosync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_nosync_after_text,
callback=self.set_deframer_nosync_after_text,
label="Deframer out of sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._deframer_nosync_after_text_static_text, 4, 0, 1, 1)
self._deframer_check_sync_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_check_sync_text,
callback=self.set_deframer_check_sync_text,
label="Deframer check sync enable",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._deframer_check_sync_text_static_text, 2, 0, 1, 1)
self._decim_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.decim_tb,
callback=self.set_decim_tb,
label="Decimation",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._decim_tb_text_box, 1, 3, 1, 1)
self._datetime_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Local time of aquisition start",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._datetime_text_static_text, 1, 0,
1, 1)
self.cs2cf = gr.interleaved_short_to_complex()
_clock_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
label="Clock alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_clock_alpha_sl_sizer, 1, 1, 1, 1)
self._baseband_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.baseband_file_text_inf,
callback=self.set_baseband_file_text_inf,
label="Baseband filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(
self._baseband_file_text_inf_static_text, 4, 0, 1, 1)
##################################################
# Connections
##################################################
self.connect((self.gr_throttle_0, 0), (self.cs2cf, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0),
(self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.cs2cf, 0), (self.gr_agc_xx_0_0, 0))
self.connect((self.gr_agc_xx_0_0, 0), (self.pll, 0))
self.connect((self.cs2cf, 0), (self.wxgui_fftsink1, 0))
self.connect((self.gr_multiply_const_vxx_0, 0),
(self.gr_binary_slicer_fb_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.gr_multiply_const_vxx_0, 0))
self.connect((self.poesweather_meteor_cadu_deframer_0, 0),
(self.gr_file_sink_0_0_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0),
(self.poesweather_meteor_cadu_deframer_0, 0))
self.connect((self.gr_file_source_0_0, 0), (self.gr_throttle_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.wxgui_scopesink2_0, 0))
def __init__(self, input_filename="usrp.dat", decim=32):
grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver")
##################################################
# Parameters
##################################################
self.input_filename = input_filename
self.decim = decim
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600 * 1109
self.sample_rate = sample_rate = 64e6 / decim
self.config_filename = config_filename = os.environ[
'HOME'] + '/.gnuradio/config.conf'
self.sps = sps = sample_rate / sym_rate
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try:
saved_pll_alpha = self._saved_pll_alpha_config.getfloat(
'usrp_rx_hrpt', 'pll_alpha')
except:
saved_pll_alpha = 0.01
self.saved_pll_alpha = saved_pll_alpha
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try:
saved_clock_alpha = self._saved_clock_alpha_config.getfloat(
'usrp_rx_hrpt', 'clock_alpha')
except:
saved_clock_alpha = 0.01
self.saved_clock_alpha = saved_clock_alpha
self.pll_alpha = pll_alpha = saved_pll_alpha
self._output_filename_config = ConfigParser.ConfigParser()
self._output_filename_config.read(config_filename)
try:
output_filename = self._output_filename_config.get(
'usrp_rx_hrpt', 'filename')
except:
output_filename = 'frames.hrpt'
self.output_filename = output_filename
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)
self.clock_alpha = clock_alpha = saved_clock_alpha
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Spectrum")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Demod")
self.GridAdd(self.displays, 1, 0, 1, 2)
##################################################
# Controls
##################################################
_pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_pll_alpha_sizer, 0, 0, 1, 1)
_clock_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
label="Clock Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_clock_alpha_sizer, 0, 1, 1, 1)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder(True, False)
self.deframer = noaa.hrpt_deframer()
self.demod_scope = scopesink2.scope_sink_f(
self.displays.GetPage(1).GetWin(),
title="Post-Demod",
sample_rate=sym_rate * 2.0,
v_scale=0.5,
v_offset=0,
t_scale=10.0 / sym_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(1).GridAdd(self.demod_scope.win, 0, 0, 1, 1)
self.frame_sink = gr.file_sink(gr.sizeof_short * 1, output_filename)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(
sps / 2.0, clock_alpha**2 / 4.0, 0.5, clock_alpha,
max_clock_offset)
self.gr_file_source_0 = gr.file_source(gr.sizeof_short * 1,
input_filename, False)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex(
)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2 / 4.0,
max_carrier_offset)
self.rx_fft = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=5,
y_divs=8,
ref_level=-5,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.1,
title="RX Spectrum",
peak_hold=False,
size=(640, 360),
)
self.displays.GetPage(0).GridAdd(self.rx_fft.win, 0, 0, 1, 1)
self.throttle = gr.throttle(gr.sizeof_short * 1, 2 * sample_rate)
##################################################
# Connections
##################################################
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.gr_binary_slicer_fb_0, 0))
self.connect((self.deframer, 0), (self.frame_sink, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.demod_scope, 0))
self.connect((self.gr_moving_average_xx_0, 0),
(self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.agc, 0), (self.rx_fft, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0),
(self.agc, 0))
self.connect((self.throttle, 0),
(self.gr_interleaved_short_to_complex_0, 0))
self.connect((self.gr_file_source_0, 0), (self.throttle, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.deframer, 0))
def __init__(self, fft_length, cp_length, half_sync, kstime, ks1time, threshold, logging=False):
gr.hier_block2.__init__(
self,
"ofdm_sync_pn",
gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
gr.io_signature3(
3,
3, # Output signature
gr.sizeof_gr_complex, # delayed input
gr.sizeof_float, # fine frequency offset
gr.sizeof_char, # timing indicator
),
)
if half_sync:
period = fft_length / 2
window = fft_length / 2
else: # full symbol
period = fft_length + cp_length
window = fft_length # makes the plateau cp_length long
# Calculate the frequency offset from the correlation of the preamble
x_corr = gr.multiply_cc()
self.connect(self, gr.conjugate_cc(), (x_corr, 0))
self.connect(self, gr.delay(gr.sizeof_gr_complex, period), (x_corr, 1))
P_d = gr.moving_average_cc(window, 1.0)
self.connect(x_corr, P_d)
# offset by -1
phi = gr.sample_and_hold_ff()
self.corrmag = gr.complex_to_mag_squared()
P_d_angle = gr.complex_to_arg()
self.connect(P_d, P_d_angle, (phi, 0))
cross_correlate = 1
if cross_correlate == 1:
# cross-correlate with the known symbol
kstime = [k.conjugate() for k in kstime]
kstime.reverse()
self.crosscorr_filter = gr.fir_filter_ccc(1, kstime)
"""
self.f2b = gr.float_to_char()
self.slice = gr.threshold_ff(threshold, threshold, 0, fft_length)
#self.connect(self, self.crosscorr_filter, self.corrmag, self.slice, self.f2b)
self.connect(self.f2b, (phi,1))
self.connect(self.f2b, (self,2))
self.connect(self.f2b, gr.file_sink(gr.sizeof_char, "ofdm_f2b.dat"))
"""
# new method starts here - only crosscorrelate and use peak_detect block #
peak_detect = gr.peak_detector_fb(100, 100, 30, 0.001)
self.corrmag1 = gr.complex_to_mag_squared()
self.connect(self, self.crosscorr_filter, self.corrmag, peak_detect)
self.connect(peak_detect, (phi, 1))
self.connect(peak_detect, (self, 2))
self.connect(peak_detect, gr.file_sink(gr.sizeof_char, "sync-peaks_b.dat"))
self.connect(self.corrmag, gr.file_sink(gr.sizeof_float, "ofdm_corrmag.dat"))
self.connect(self, gr.delay(gr.sizeof_gr_complex, (fft_length)), (self, 0))
else:
# Get the power of the input signal to normalize the output of the correlation
R_d = gr.moving_average_ff(window, 1.0)
self.connect(self, gr.complex_to_mag_squared(), R_d)
R_d_squared = gr.multiply_ff() # this is retarded
self.connect(R_d, (R_d_squared, 0))
self.connect(R_d, (R_d_squared, 1))
M_d = gr.divide_ff()
self.connect(P_d, gr.complex_to_mag_squared(), (M_d, 0))
self.connect(R_d_squared, (M_d, 1))
# Now we need to detect peak of M_d
matched_filter = gr.moving_average_ff(cp_length, 1.0 / cp_length)
peak_detect = gr.peak_detector_fb(0.25, 0.25, 30, 0.001)
self.connect(M_d, matched_filter, gr.add_const_ff(-1), peak_detect)
offset = cp_length / 2 # cp_length/2
self.connect(peak_detect, (phi, 1))
self.connect(peak_detect, (self, 2))
self.connect(P_d_angle, gr.delay(gr.sizeof_float, offset), (phi, 0))
self.connect(
self, gr.delay(gr.sizeof_gr_complex, (fft_length + offset)), (self, 0)
) # delay the input to follow the freq offset
self.connect(peak_detect, gr.delay(gr.sizeof_char, (fft_length + offset)), (self, 2))
self.connect(peak_detect, gr.file_sink(gr.sizeof_char, "sync-peaks_b.dat"))
self.connect(matched_filter, gr.file_sink(gr.sizeof_float, "sync-mf.dat"))
self.connect(phi, (self, 1))
if logging:
self.connect(matched_filter, gr.file_sink(gr.sizeof_float, "sync-mf.dat"))
self.connect(M_d, gr.file_sink(gr.sizeof_float, "sync-M.dat"))
self.connect(P_d_angle, gr.file_sink(gr.sizeof_float, "sync-angle.dat"))
self.connect(peak_detect, gr.file_sink(gr.sizeof_char, "sync-peaks.datb"))
self.connect(phi, gr.file_sink(gr.sizeof_float, "sync-phi.dat"))
def __init__(self):
gr.top_block.__init__(self, "Usrp Rx Hrpt Nogui")
##################################################
# Variables
##################################################
self.config_filename = config_filename = os.environ[
'HOME'] + '/.gnuradio/config.conf'
self._decim_config = ConfigParser.ConfigParser()
self._decim_config.read(config_filename)
try:
decim = self._decim_config.getfloat('usrp_rx_hrpt', 'decim')
except:
decim = 32
self.decim = decim
self.sym_rate = sym_rate = 600 * 1109
self.sample_rate = sample_rate = 64e6 / decim
self.sps = sps = sample_rate / sym_rate
self._side_config = ConfigParser.ConfigParser()
self._side_config.read(config_filename)
try:
side = self._side_config.get('usrp_rx_hrpt', 'side')
except:
side = 'A'
self.side = side
self._pll_alpha_config = ConfigParser.ConfigParser()
self._pll_alpha_config.read(config_filename)
try:
pll_alpha = self._pll_alpha_config.getfloat(
'usrp_rx_hrpt', 'pll_alpha')
except:
pll_alpha = 0.01
self.pll_alpha = pll_alpha
self._output_filename_config = ConfigParser.ConfigParser()
self._output_filename_config.read(config_filename)
try:
output_filename = self._output_filename_config.get(
'usrp_rx_hrpt', 'filename')
except:
output_filename = 'frames.hrpt'
self.output_filename = output_filename
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)
self._gain_config = ConfigParser.ConfigParser()
self._gain_config.read(config_filename)
try:
gain = self._gain_config.getfloat('usrp_rx_hrpt', 'gain')
except:
gain = 35
self.gain = gain
self._freq_config = ConfigParser.ConfigParser()
self._freq_config.read(config_filename)
try:
freq = self._freq_config.getfloat('usrp_rx_hrpt', 'freq')
except:
freq = 1698e6
self.freq = freq
self._clock_alpha_config = ConfigParser.ConfigParser()
self._clock_alpha_config.read(config_filename)
try:
clock_alpha = self._clock_alpha_config.getfloat(
'usrp_rx_hrpt', 'clock_alpha')
except:
clock_alpha = 0.01
self.clock_alpha = clock_alpha
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder(True, True)
self.deframer = noaa.hrpt_deframer()
self.frame_sink = gr.file_sink(gr.sizeof_short * 1, output_filename)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(
sps / 2.0, clock_alpha**2 / 4.0, 0.5, clock_alpha,
max_clock_offset)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2 / 4.0,
max_carrier_offset)
self.usrp_source = grc_usrp.simple_source_c(which=0,
side=side,
rx_ant="RXA")
self.usrp_source.set_decim_rate(decim)
self.usrp_source.set_frequency(freq, verbose=True)
self.usrp_source.set_gain(gain)
##################################################
# Connections
##################################################
self.connect((self.usrp_source, 0), (self.agc, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0),
(self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.gr_binary_slicer_fb_0, 0))
self.connect((self.deframer, 0), (self.frame_sink, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.deframer, 0))
def __init__(
self,
deframer_insync_frames=2,
deframer_outsync_frames=5,
deframer_sync_check=True,
pll_alpha=0.005,
satellite="NOAAxx",
decim=50,
symb_rate=600 * 1109,
baseband_file="/home/martin/GNURadioData/hrpt/baseband/HRPT_NOAA19_2010-09-10_12-35-34_UTC_U2_d50.sam",
frames_file=os.environ["HOME"] + "/noaa_hrpt_frames.hmf",
clock_alpha=0.005,
):
grc_wxgui.top_block_gui.__init__(self, title="NOAA HRPT Receiver from baseband file")
##################################################
# Parameters
##################################################
self.deframer_insync_frames = deframer_insync_frames
self.deframer_outsync_frames = deframer_outsync_frames
self.deframer_sync_check = deframer_sync_check
self.pll_alpha = pll_alpha
self.satellite = satellite
self.decim = decim
self.symb_rate = symb_rate
self.baseband_file = baseband_file
self.frames_file = frames_file
self.clock_alpha = clock_alpha
##################################################
# Variables
##################################################
self.decim_tb = decim_tb = decim
self.symb_rate_tb = symb_rate_tb = symb_rate
self.samp_rate = samp_rate = 100e6 / decim_tb
self.sps = sps = samp_rate / symb_rate_tb
self.satellite_text = satellite_text = satellite
self.samp_rate_st = samp_rate_st = samp_rate
self.pll_alpha_sl = pll_alpha_sl = pll_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2 * math.pi * 100e3 / samp_rate
self.hs = hs = int(sps / 2.0)
self.frames_file_text_inf = frames_file_text_inf = frames_file
self.deframer_sync_after_text = deframer_sync_after_text = deframer_insync_frames
self.deframer_nosync_after_text = deframer_nosync_after_text = deframer_outsync_frames
self.deframer_check_sync_text = deframer_check_sync_text = deframer_sync_check
self.datetime_text = datetime_text = strftime("%A, %B %d %Y %H:%M:%S", localtime())
self.clock_alpha_sl = clock_alpha_sl = clock_alpha
self.baseband_file_text_inf = baseband_file_text_inf = baseband_file
##################################################
# Notebooks
##################################################
self.rx_ntb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Input baseband")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "PLL demodulator and Clock sync")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Deframer")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Output")
self.Add(self.rx_ntb)
##################################################
# Controls
##################################################
self._decim_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.decim_tb,
callback=self.set_decim_tb,
label="Decimation",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._decim_tb_text_box, 1, 3, 1, 1)
self._symb_rate_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
value=self.symb_rate_tb,
callback=self.set_symb_rate_tb,
label="Symbol rate",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(1).GridAdd(self._symb_rate_tb_text_box, 2, 1, 1, 1)
self._satellite_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.satellite_text,
callback=self.set_satellite_text,
label="Sat ",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._satellite_text_static_text, 1, 0, 1, 1)
self._samp_rate_st_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.samp_rate_st,
callback=self.set_samp_rate_st,
label="Sample rate",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._samp_rate_st_static_text, 1, 4, 1, 1)
_pll_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_pll_alpha_sl_sizer, 1, 0, 1, 1)
self._frames_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.frames_file_text_inf,
callback=self.set_frames_file_text_inf,
label="Frames filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._frames_file_text_inf_static_text, 3, 0, 1, 1)
self._deframer_sync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_sync_after_text,
callback=self.set_deframer_sync_after_text,
label="Deframe sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._deframer_sync_after_text_static_text, 3, 0, 1, 1)
self._deframer_nosync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_nosync_after_text,
callback=self.set_deframer_nosync_after_text,
label="Deframer out of sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._deframer_nosync_after_text_static_text, 4, 0, 1, 1)
self._deframer_check_sync_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_check_sync_text,
callback=self.set_deframer_check_sync_text,
label="Deframer check sync enable",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._deframer_check_sync_text_static_text, 2, 0, 1, 1)
self._datetime_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Local time of aquisition start",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._datetime_text_static_text, 1, 0, 1, 1)
_clock_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
label="Clock alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_clock_alpha_sl_sizer, 1, 1, 1, 1)
self._baseband_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.baseband_file_text_inf,
callback=self.set_baseband_file_text_inf,
label="Baseband filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._baseband_file_text_inf_static_text, 4, 0, 1, 1)
##################################################
# Blocks
##################################################
self.cs2cf = gr.interleaved_short_to_complex()
self.gr_agc_xx_0_0 = gr.agc_cc(10e-6, 1, 1.0 / 32767.0, 1.0)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(
sps / 2.0, clock_alpha ** 2 / 4.0, 0.5, clock_alpha, max_clock_offset
)
self.gr_file_sink_0_0 = gr.file_sink(gr.sizeof_short * 1, frames_file)
self.gr_file_source_0 = gr.file_source(gr.sizeof_short * 1, baseband_file, False)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.gr_throttle_0 = gr.throttle(gr.sizeof_short * 1, samp_rate * 2)
self.noaa_hrpt_decoder_0 = noaa.hrpt_decoder(True, False)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha ** 2 / 4.0, max_carrier_offset)
self.poesweather_univ_hrpt_deframer_0 = poesweather.univ_hrpt_deframer(
deframer_sync_check, 11090, deframer_insync_frames, deframer_outsync_frames
)
self.wxgui_fftsink1 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=5,
y_divs=10,
ref_level=50,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="Not filtered spectrum",
peak_hold=False,
)
self.rx_ntb.GetPage(0).Add(self.wxgui_fftsink1.win)
##################################################
# Connections
##################################################
self.connect((self.gr_file_source_0, 0), (self.gr_throttle_0, 0))
self.connect((self.gr_throttle_0, 0), (self.cs2cf, 0))
self.connect((self.poesweather_univ_hrpt_deframer_0, 0), (self.noaa_hrpt_decoder_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.poesweather_univ_hrpt_deframer_0, 0))
self.connect((self.poesweather_univ_hrpt_deframer_0, 0), (self.gr_file_sink_0_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_binary_slicer_fb_0, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.cs2cf, 0), (self.gr_agc_xx_0_0, 0))
self.connect((self.gr_agc_xx_0_0, 0), (self.pll, 0))
self.connect((self.cs2cf, 0), (self.wxgui_fftsink1, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Communication System Graphical Analyzer (LAPS/UFCG)")
##################################################
# Default Variables
##################################################
self.sps = 2
self.snr = 20
self.symbol_rate = 140000
self.mod_type = "DBPSK"
self.view = 1
self.band= 200
self.excess_bw=0.35
self.fading_flag = False
self.fdts = -8
self.fading_state_rx = False
##################################################
# Blocks Definition
##################################################
#A bit stream of 1's is generated at the source, scrambled,
#modulated and sent to the input of an AWGN channel.
#random.seed(42)
#self.source = gr.vector_source_b([random.randint(0, 2) for i in range(0,10^8)], True)
self.source = gr.vector_source_b((1,), True, 1)
self.thottle = gr.throttle(gr.sizeof_char,10e5)
self.scrambler = gr.scrambler_bb(0x40801, 0x92F72, 20) #Taxa de simbolos constante
self.pack = gr.unpacked_to_packed_bb(1, gr.GR_MSB_FIRST)
self.modulator = utils.mods[self.mod_type](self.sps,excess_bw=self.excess_bw)
self.channel = utils.channel(1/10.0**(self.snr/10.0),self.band,self.symbol_rate,self.sps)
#The noisy signal is demodulated, descrambled and the BER
#is estimated by the ber_estim block using the receiver
#density of 0 bits.
self.demodulator = utils.demods[self.mod_type](self.sps,excess_bw=self.excess_bw)
self.descrambler = gr.descrambler_bb(0x40801, 0x92F72, 20)
self.char2float = gr.char_to_float()
self.mov_average = gr.moving_average_ff(524288, 1/524288., 10000)
self.ber = utils.ber_estim()
#self.ber = utils.ber_estim_simple(3)
##################################################
# GUI Elements Definition
##################################################
#Defines an adds FFT Window to GUI
self.fft = fftsink.fft_sink_c(self.GetWin(), sample_rate=self.symbol_rate*self.sps, baseband_freq=5e6)
self.GridAdd(self.fft.win, 0,3,4,3)
self.ctr= gr.complex_to_real(1)
#Defines and adds SNR slider to GUI
_snr_sizer = wx.BoxSizer(wx.HORIZONTAL)
self._snr_text_box = forms.text_box(parent=self.GetWin(),
sizer=_snr_sizer, value=self.snr, callback=self.callback_snr,
label=" SNR (dB)", converter=forms.float_converter(),
proportion=0)
self._snr_slider = forms.slider(parent=self.GetWin(),
sizer=_snr_sizer, value=self.snr, callback=self.callback_snr,
minimum=0, maximum=20, style=wx.RA_HORIZONTAL, proportion=1)
self.GridAdd(_snr_sizer, 4, 3, 1, 3)
#Defines and adds bandwidth slider to GUI
band_sizer = wx.BoxSizer(wx.HORIZONTAL)
self.band_text_box = forms.text_box(parent=self.GetWin(),
sizer=band_sizer, value=self.band, callback=self.callback_band,
label="Bandwidth (kHz)", converter=forms.float_converter(),
proportion=0)
self.band_slider = forms.slider(parent=self.GetWin(),
sizer=band_sizer, value=self.band, callback=self.callback_band,
minimum=30, maximum=200, style=wx.RA_HORIZONTAL, proportion=1)
self.GridAdd(band_sizer, 5, 3, 1, 3)
#Defines and adds Rayleigh GUI elements
fading_sizer = wx.BoxSizer(wx.HORIZONTAL)
self.fading_text_box = forms.text_box(parent=self.GetWin(),
sizer=fading_sizer, value=self.fdts, callback=self.callback_fading,
label='Fading/log(FdTs)', converter=forms.float_converter(),
proportion=0)
self.fading_slider = forms.slider(parent=self.GetWin(),
sizer=fading_sizer, value=self.fdts, callback=self.callback_fading,
minimum=-8, maximum=-2, style=wx.RA_HORIZONTAL, proportion=1)
self.GridAdd(fading_sizer, 6, 3, 1, 3)
#Defines and adds modulation type chooser to GUI
self._mod_type_chooser = forms.radio_buttons(parent=self.GetWin(),
value=self.mod_type, callback=self.set_mod_type,
label="Modulation", choices=["DBPSK", "DQPSK", "D8PSK"],
labels=["DBPSK", "DQPSK", "D8PSK"], style=wx.RA_HORIZONTAL)
self.GridAdd(self._mod_type_chooser, 7, 4, 1, 2)
#Defines and adds signal source chooser
self.sig_src_chooser = forms.radio_buttons(parent=self.GetWin(),
value=self.view, callback=self.callback_view,
label="Signal Source", choices=[0,1],
labels=["Transmitter","Receiver"], style=wx.RA_VERTICAL)
self.GridAdd(self.sig_src_chooser, 7,3,1,1)
#Definition of the of constellation window and attachment to the GUI
self.constel = constsink.const_sink_c(self.GetWin(),
title="RX Constellation Plot", sample_rate=self.symbol_rate,
const_size=256, mod=self.mod_type)
self.GridAdd(self.constel.win,0,0,8,3)
#Definition of the constellation sink window and attachment to the GUI
self.number_sink = bersink.number_sink_f(self.GetWin(),
sample_rate=self.symbol_rate)
self.GridAdd(self.number_sink.win,8,0,1,6)
##################################################
# Blocks Connections
##################################################
#The necessary block connections to the system work as described above.
self.connect(self.source, self.scrambler , self.thottle, self.pack)
#self.connect(self.source , self.thottle, self.pack)
self.connect(self.pack, self.modulator, self.channel, self.demodulator)
self.connect(self.channel, self.fft)
self.connect(self.demodulator.diffdec, self.constel)
self.connect(self.demodulator, self.descrambler, self.char2float, self.mov_average)
self.connect(self.mov_average, self.ber, self.number_sink)
def __init__(self):
gr.top_block.__init__(self, "USRP HRPT Receiver")
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600 * 1109
self.sample_rate = sample_rate = 4e6
self.sps = sps = sample_rate / sym_rate
self.config_filename = config_filename = os.environ[
'HOME'] + '/.gnuradio/config.conf'
self._pll_alpha_config = ConfigParser.ConfigParser()
self._pll_alpha_config.read(config_filename)
try:
pll_alpha = self._pll_alpha_config.getfloat(
'usrp_rx_hrpt', 'pll_alpha')
except:
pll_alpha = 0.01
self.pll_alpha = pll_alpha
self._output_filename_config = ConfigParser.ConfigParser()
self._output_filename_config.read(config_filename)
try:
output_filename = self._output_filename_config.get(
'usrp_rx_hrpt', 'filename')
except:
output_filename = 'frames.hrpt'
self.output_filename = output_filename
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)
self._gain_config = ConfigParser.ConfigParser()
self._gain_config.read(config_filename)
try:
gain = self._gain_config.getfloat('usrp_rx_hrpt', 'gain')
except:
gain = 35
self.gain = gain
self._freq_config = ConfigParser.ConfigParser()
self._freq_config.read(config_filename)
try:
freq = self._freq_config.getfloat('usrp_rx_hrpt', 'freq')
except:
freq = 1698e6
self.freq = freq
self._clock_alpha_config = ConfigParser.ConfigParser()
self._clock_alpha_config.read(config_filename)
try:
clock_alpha = self._clock_alpha_config.getfloat(
'usrp_rx_hrpt', 'clock_alpha')
except:
clock_alpha = 0.01
self.clock_alpha = clock_alpha
self._addr_config = ConfigParser.ConfigParser()
self._addr_config.read(config_filename)
try:
addr = self._addr_config.get('usrp_rx_hrpt', 'addr')
except:
addr = ""
self.addr = addr
##################################################
# Blocks
##################################################
self.uhd_usrp_source_0 = uhd.usrp_source(
device_addr=addr,
io_type=uhd.io_type.COMPLEX_FLOAT32,
num_channels=1,
)
self.uhd_usrp_source_0.set_samp_rate(sample_rate)
self.uhd_usrp_source_0.set_center_freq(freq, 0)
self.uhd_usrp_source_0.set_gain(0, 0)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2 / 4.0,
max_carrier_offset)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.frame_sink = gr.file_sink(gr.sizeof_short * 1, output_filename)
self.frame_sink.set_unbuffered(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.deframer = noaa.hrpt_deframer()
self.decoder = noaa.hrpt_decoder(True, True)
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
##################################################
# Connections
##################################################
self.connect((self.gr_moving_average_xx_0, 0),
(self.digital_clock_recovery_mm_xx_0, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.agc, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.digital_binary_slicer_fb_0, 0), (self.deframer, 0))
self.connect((self.digital_clock_recovery_mm_xx_0, 0),
(self.digital_binary_slicer_fb_0, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.deframer, 0), (self.frame_sink, 0))
def __init__(self, decim=50, satellite='Meteor-M-N1', frames_file=os.environ['HOME'] + '/MN1_hrpt_frames.hmf', baseband_file="/home/martin/GNURadioData/hrpt/baseband/HRPT_Meteor-M-N1_2011-02-27_09-30-46_UTC_U2_d50.sam", symb_rate=600*1109, clock_alpha=0.050, pll_alpha=0.05, deframer_outsync_frames=100, deframer_insync_frames=3, deframer_sync_check=False):
grc_wxgui.top_block_gui.__init__(self, title="Meteor M-N1 HRPT Receiver from baseband file")
_icon_path = "/home/martin/.local/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.decim = decim
self.satellite = satellite
self.frames_file = frames_file
self.baseband_file = baseband_file
self.symb_rate = symb_rate
self.clock_alpha = clock_alpha
self.pll_alpha = pll_alpha
self.deframer_outsync_frames = deframer_outsync_frames
self.deframer_insync_frames = deframer_insync_frames
self.deframer_sync_check = deframer_sync_check
##################################################
# Variables
##################################################
self.decim_tb = decim_tb = decim
self.symb_rate_tb = symb_rate_tb = symb_rate
self.samp_rate = samp_rate = 100e6/decim_tb
self.sps = sps = samp_rate/symb_rate_tb
self.v = v = True
self.satellite_text = satellite_text = satellite
self.samp_rate_st = samp_rate_st = samp_rate
self.pll_alpha_sl = pll_alpha_sl = pll_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/samp_rate
self.hs = hs = int(sps/2.0)
self.frames_file_text_inf = frames_file_text_inf = frames_file
self.deframer_sync_after_text = deframer_sync_after_text = deframer_insync_frames
self.deframer_nosync_after_text = deframer_nosync_after_text = deframer_outsync_frames
self.deframer_check_sync_text = deframer_check_sync_text = deframer_sync_check
self.datetime_text = datetime_text = strftime("%A, %B %d %Y %H:%M:%S", localtime())
self.clock_alpha_sl = clock_alpha_sl = clock_alpha
self.baseband_file_text_inf = baseband_file_text_inf = baseband_file
##################################################
# Blocks
##################################################
self.rx_ntb = self.rx_ntb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Input baseband")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "PLL demodulator and Clock sync")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Deframer")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Output")
self.Add(self.rx_ntb)
self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.GetWin(),
title="Scope Plot",
sample_rate=samp_rate,
v_scale=0,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=False,
num_inputs=1,
trig_mode=gr.gr_TRIG_MODE_AUTO,
y_axis_label="Counts",
)
self.Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink1 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=5,
y_divs=10,
ref_level=50,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="Not filtered spectrum",
peak_hold=False,
)
self.rx_ntb.GetPage(0).Add(self.wxgui_fftsink1.win)
self._v_check_box = forms.check_box(
parent=self.GetWin(),
value=self.v,
callback=self.set_v,
label="Open",
true=True,
false=False,
)
self.Add(self._v_check_box)
self._symb_rate_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
value=self.symb_rate_tb,
callback=self.set_symb_rate_tb,
label="Symbol rate",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(1).GridAdd(self._symb_rate_tb_text_box, 2, 1, 1, 1)
self._satellite_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.satellite_text,
callback=self.set_satellite_text,
label="Sat ",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._satellite_text_static_text, 1, 0, 1, 1)
self._samp_rate_st_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.samp_rate_st,
callback=self.set_samp_rate_st,
label="Sample rate",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._samp_rate_st_static_text, 1, 4, 1, 1)
self.poesweather_meteor_cadu_deframer_0 = poesweather.meteor_cadu_deframer(deframer_sync_check, 256, deframer_insync_frames, deframer_outsync_frames)
_pll_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_pll_alpha_sl_sizer, 1, 0, 1, 1)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
self.gr_throttle_0 = gr.throttle(gr.sizeof_short*1, samp_rate*10)
self.gr_multiply_const_vxx_0 = gr.multiply_const_vff((-1, ))
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.gr_file_source_0_0 = gr.file_source(gr.sizeof_short*1, "/home/martin/hrpt/baseband/METEOR-M-1/2011/07/24/METEOR-M-1_2011-07-24T113448_U2d50.sam", False)
self.gr_file_sink_0_0_0 = gr.file_sink(gr.sizeof_char*1, "frames.mn1")
self.gr_file_sink_0_0_0.set_unbuffered(False)
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(sps/2.0, clock_alpha**2/4.0, 0.5, clock_alpha, max_clock_offset)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_agc_xx_0_0 = gr.agc_cc(10e-6, 1, 1.0/32767.0, 1.0)
self._frames_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.frames_file_text_inf,
callback=self.set_frames_file_text_inf,
label="Frames filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._frames_file_text_inf_static_text, 3, 0, 1, 1)
self._deframer_sync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_sync_after_text,
callback=self.set_deframer_sync_after_text,
label="Deframe sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._deframer_sync_after_text_static_text, 3, 0, 1, 1)
self._deframer_nosync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_nosync_after_text,
callback=self.set_deframer_nosync_after_text,
label="Deframer out of sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._deframer_nosync_after_text_static_text, 4, 0, 1, 1)
self._deframer_check_sync_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_check_sync_text,
callback=self.set_deframer_check_sync_text,
label="Deframer check sync enable",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._deframer_check_sync_text_static_text, 2, 0, 1, 1)
self._decim_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.decim_tb,
callback=self.set_decim_tb,
label="Decimation",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._decim_tb_text_box, 1, 3, 1, 1)
self._datetime_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Local time of aquisition start",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._datetime_text_static_text, 1, 0, 1, 1)
self.cs2cf = gr.interleaved_short_to_complex()
_clock_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
label="Clock alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_clock_alpha_sl_sizer, 1, 1, 1, 1)
self._baseband_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.baseband_file_text_inf,
callback=self.set_baseband_file_text_inf,
label="Baseband filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._baseband_file_text_inf_static_text, 4, 0, 1, 1)
##################################################
# Connections
##################################################
self.connect((self.gr_throttle_0, 0), (self.cs2cf, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.cs2cf, 0), (self.gr_agc_xx_0_0, 0))
self.connect((self.gr_agc_xx_0_0, 0), (self.pll, 0))
self.connect((self.cs2cf, 0), (self.wxgui_fftsink1, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.gr_binary_slicer_fb_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_multiply_const_vxx_0, 0))
self.connect((self.poesweather_meteor_cadu_deframer_0, 0), (self.gr_file_sink_0_0_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0), (self.poesweather_meteor_cadu_deframer_0, 0))
self.connect((self.gr_file_source_0_0, 0), (self.gr_throttle_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.wxgui_scopesink2_0, 0))
def __init__(self,
decim=32,
freq=1698e6,
gain=35,
side="A",
frames_file=os.environ['HOME'] + '/NOAA-XX.hrpt',
baseband_file=os.environ['HOME'] + '/NOAA-XX.dat',
satellite='NOAA-XX',
sync_check=False):
gr.top_block.__init__(self, "USRP NOAA HRPT Receiver")
##################################################
# Parameters
##################################################
self.decim = decim
self.freq = freq
self.gain = gain
self.side = side
self.frames_file = frames_file
self.baseband_file = baseband_file
self.satellite = satellite
self.sync_check = sync_check
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600 * 1109
self.samp_rate = samp_rate = 64e6 / decim
self.sps = sps = samp_rate / sym_rate
self.config_filename = config_filename = os.environ[
'HOME'] + '/.gnuradio/noaa_hrpt.conf'
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try:
saved_pll_alpha = self._saved_pll_alpha_config.getfloat(
"satname", 'pll_alpha')
except:
saved_pll_alpha = 0.005
self.saved_pll_alpha = saved_pll_alpha
self._saved_gain_config = ConfigParser.ConfigParser()
self._saved_gain_config.read(config_filename)
try:
saved_gain = self._saved_gain_config.getfloat("satname", 'gain')
except:
saved_gain = gain
self.saved_gain = saved_gain
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try:
saved_clock_alpha = self._saved_clock_alpha_config.getfloat(
"satname", 'clock_alpha')
except:
saved_clock_alpha = 0.001
self.saved_clock_alpha = saved_clock_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2 * math.pi * 100e3 / samp_rate
self.hs = hs = int(sps / 2.0)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-5, 1.0, 1.0 / 32768.0, 1.0)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(
sps / 2.0, saved_clock_alpha**2 / 4.0, 0.5, saved_clock_alpha,
max_clock_offset)
self.gr_file_sink_0 = gr.file_sink(gr.sizeof_short * 1, baseband_file)
self.gr_file_sink_0.set_unbuffered(False)
self.gr_file_sink_0_0 = gr.file_sink(gr.sizeof_short * 1, frames_file)
self.gr_file_sink_0_0.set_unbuffered(False)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex(
)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.noaa_hrpt_decoder_0 = noaa.hrpt_decoder(True, False)
self.pll = noaa.hrpt_pll_cf(saved_pll_alpha, saved_pll_alpha**2 / 4.0,
max_carrier_offset)
self.poesweather_noaa_hrpt_deframer_0 = poesweather.noaa_hrpt_deframer(
sync_check)
self.usrp_simple_source_x_0 = grc_usrp.simple_source_s(which=0,
side=side,
rx_ant="RXA")
self.usrp_simple_source_x_0.set_decim_rate(decim)
self.usrp_simple_source_x_0.set_frequency(freq, verbose=True)
self.usrp_simple_source_x_0.set_gain(gain)
##################################################
# Connections
##################################################
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.gr_binary_slicer_fb_0, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0),
(self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0),
(self.gr_file_sink_0_0, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0),
(self.noaa_hrpt_decoder_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0),
(self.poesweather_noaa_hrpt_deframer_0, 0))
self.connect((self.usrp_simple_source_x_0, 0),
(self.gr_file_sink_0, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0),
(self.agc, 0))
self.connect((self.usrp_simple_source_x_0, 0),
(self.gr_interleaved_short_to_complex_0, 0))
def __init__(self, side="A", gain=35, decim=32, sync_check=False, satellite='METEOR-M-1', frames_file=os.environ['HOME'] + '/METEOR-M-1.hrpt', freq=1700e6):
grc_wxgui.top_block_gui.__init__(self, title="USRP NOAA HRPT Receiver")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.side = side
self.gain = gain
self.decim = decim
self.sync_check = sync_check
self.satellite = satellite
self.frames_file = frames_file
self.freq = freq
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600*1109
self.samp_rate = samp_rate = 64e6/decim
self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/mn1_hrpt.conf'
self.sps = sps = samp_rate/sym_rate
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try: saved_pll_alpha = self._saved_pll_alpha_config.getfloat("satname", 'pll_alpha')
except: saved_pll_alpha = 0.005
self.saved_pll_alpha = saved_pll_alpha
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try: saved_clock_alpha = self._saved_clock_alpha_config.getfloat("satname", 'clock_alpha')
except: saved_clock_alpha = 0.001
self.saved_clock_alpha = saved_clock_alpha
self.sync_check_txt = sync_check_txt = sync_check
self.side_text = side_text = side
self._saved_gain_config = ConfigParser.ConfigParser()
self._saved_gain_config.read(config_filename)
try: saved_gain = self._saved_gain_config.getfloat("satname", 'gain')
except: saved_gain = gain
self.saved_gain = saved_gain
self.satellite_text = satellite_text = satellite
self.sample_rate_text = sample_rate_text = samp_rate
self.pll_alpha = pll_alpha = saved_pll_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/samp_rate
self.hs = hs = int(sps/2.0)
self.gain_slider = gain_slider = gain
self.freq_tb = freq_tb = freq
self.frames_outfile_text = frames_outfile_text = frames_file
self.decim_tb = decim_tb = decim
self.datetime_text = datetime_text = strftime("%A, %B %d %Y %H:%M:%S", localtime())
self.clock_alpha = clock_alpha = saved_clock_alpha
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "RX Meteor M N1 HRPT")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Information")
self.Add(self.displays)
##################################################
# Controls
##################################################
self._sync_check_txt_static_text = forms.static_text(
parent=self.GetWin(),
value=self.sync_check_txt,
callback=self.set_sync_check_txt,
label="Sync check",
converter=forms.float_converter(),
)
self.GridAdd(self._sync_check_txt_static_text, 0, 2, 1, 1)
self._side_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.side_text,
callback=self.set_side_text,
label="USRP Side",
converter=forms.str_converter(),
)
self.GridAdd(self._side_text_static_text, 0, 0, 1, 1)
self._satellite_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.satellite_text,
callback=self.set_satellite_text,
label="Satellite",
converter=forms.str_converter(),
)
self.GridAdd(self._satellite_text_static_text, 0, 1, 1, 1)
self._sample_rate_text_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.sample_rate_text,
callback=self.set_sample_rate_text,
label="Sample rate",
converter=forms.float_converter(),
)
self.displays.GetPage(1).GridAdd(self._sample_rate_text_static_text, 3, 0, 1, 1)
_pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
minimum=0.005,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_pll_alpha_sizer, 2, 1, 1, 1)
_gain_slider_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_slider_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_slider_sizer,
value=self.gain_slider,
callback=self.set_gain_slider,
label="Gain",
converter=forms.int_converter(),
proportion=0,
)
self._gain_slider_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_slider_sizer,
value=self.gain_slider,
callback=self.set_gain_slider,
minimum=0,
maximum=100,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=int,
proportion=1,
)
self.GridAdd(_gain_slider_sizer, 2, 0, 1, 1)
self._freq_tb_text_box = forms.text_box(
parent=self.GetWin(),
value=self.freq_tb,
callback=self.set_freq_tb,
label="Frequency",
converter=forms.float_converter(),
)
self.GridAdd(self._freq_tb_text_box, 1, 1, 1, 1)
self._frames_outfile_text_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.frames_outfile_text,
callback=self.set_frames_outfile_text,
label="Frames filename",
converter=forms.str_converter(),
)
self.displays.GetPage(1).GridAdd(self._frames_outfile_text_static_text, 4, 0, 1, 1)
self._decim_tb_text_box = forms.text_box(
parent=self.GetWin(),
value=self.decim_tb,
callback=self.set_decim_tb,
label="Decimation",
converter=forms.int_converter(),
)
self.GridAdd(self._decim_tb_text_box, 1, 0, 1, 1)
self._datetime_text_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Acquisition start",
converter=forms.str_converter(),
)
self.displays.GetPage(1).GridAdd(self._datetime_text_static_text, 2, 0, 1, 1)
_clock_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
label="Clock alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_clock_alpha_sizer, 2, 2, 1, 1)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-5, 1.0, 1.0/32768.0, 1.0)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(sps/2.0, clock_alpha**2/4.0, 0.5, clock_alpha, max_clock_offset)
self.gr_file_sink_0_0 = gr.file_sink(gr.sizeof_short*1, frames_file)
self.gr_file_sink_0_0.set_unbuffered(False)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex()
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0/hs, 4000)
self.gr_rms_xx_0 = gr.rms_cf(0.2)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
self.poesweather_mn1_hrpt_deframer_0 = poesweather.mn1_hrpt_deframer(sync_check)
self.usrp_simple_source_x_0 = grc_usrp.simple_source_s(which=0, side=side, rx_ant="RXA")
self.usrp_simple_source_x_0.set_decim_rate(decim)
self.usrp_simple_source_x_0.set_frequency(freq, verbose=True)
self.usrp_simple_source_x_0.set_gain(gain)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=5,
y_divs=10,
ref_level=45,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="Meteor M N1 HRPT FFT Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).Add(self.wxgui_fftsink2_0.win)
self.wxgui_numbersink2_0 = numbersink2.number_sink_f(
self.GetWin(),
unit="Units",
minval=0,
maxval=5000,
factor=1.0,
decimal_places=4,
ref_level=0,
sample_rate=samp_rate,
number_rate=15,
average=True,
avg_alpha=0.07,
label="S-Meter",
peak_hold=False,
show_gauge=True,
)
self.Add(self.wxgui_numbersink2_0.win)
##################################################
# Connections
##################################################
self.connect((self.gr_binary_slicer_fb_0, 0), (self.poesweather_mn1_hrpt_deframer_0, 0))
self.connect((self.usrp_simple_source_x_0, 0), (self.gr_interleaved_short_to_complex_0, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0), (self.agc, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_binary_slicer_fb_0, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0), (self.gr_rms_xx_0, 0))
self.connect((self.gr_rms_xx_0, 0), (self.wxgui_numbersink2_0, 0))
self.connect((self.poesweather_mn1_hrpt_deframer_0, 0), (self.gr_file_sink_0_0, 0))
def __init__(self,
frames_file=os.environ['HOME'] + '/NOAA-XX.hrpt',
decim=32,
satellite='NOAA-XX',
baseband_file=os.environ['HOME'] + '/NOAA-XX.dat',
sync_check=False):
grc_wxgui.top_block_gui.__init__(self,
title="NOAA HRPT Baseband To Frames")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.frames_file = frames_file
self.decim = decim
self.satellite = satellite
self.baseband_file = baseband_file
self.sync_check = sync_check
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600 * 1109
self.sample_rate = sample_rate = 64e6 / decim
self.config_filename = config_filename = os.environ[
'HOME'] + '/.gnuradio/noaa_hrpt.conf'
self.sps = sps = sample_rate / sym_rate
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try:
saved_pll_alpha = self._saved_pll_alpha_config.getfloat(
"satname", 'pll_alpha')
except:
saved_pll_alpha = 0.01
self.saved_pll_alpha = saved_pll_alpha
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try:
saved_clock_alpha = self._saved_clock_alpha_config.getfloat(
"satname", 'clock_alpha')
except:
saved_clock_alpha = 0.01
self.saved_clock_alpha = saved_clock_alpha
self.sync_check_txt = sync_check_txt = sync_check
self.satname_txt = satname_txt = satellite
self.pll_alpha = pll_alpha = saved_pll_alpha
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)
self.frames_file_txt = frames_file_txt = frames_file
self.decim_txt = decim_txt = decim
self.clock_alpha = clock_alpha = saved_clock_alpha
self.baseband_file_txt = baseband_file_txt = baseband_file
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays),
"NOAA HRPT Spectrum")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Information")
self.Add(self.displays)
##################################################
# Controls
##################################################
self._sync_check_txt_static_text = forms.static_text(
parent=self.GetWin(),
value=self.sync_check_txt,
callback=self.set_sync_check_txt,
label="Sync check",
converter=forms.int_converter(),
)
self.GridAdd(self._sync_check_txt_static_text, 0, 3, 1, 1)
self._satname_txt_static_text = forms.static_text(
parent=self.GetWin(),
value=self.satname_txt,
callback=self.set_satname_txt,
label="Satellite",
converter=forms.str_converter(),
)
self.GridAdd(self._satname_txt_static_text, 0, 0, 1, 1)
_pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_pll_alpha_sizer, 1, 0, 1, 1)
self._frames_file_txt_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.frames_file_txt,
callback=self.set_frames_file_txt,
label="Frames output filename",
converter=forms.str_converter(),
)
self.displays.GetPage(1).GridAdd(self._frames_file_txt_static_text, 2,
0, 1, 1)
self._decim_txt_static_text = forms.static_text(
parent=self.GetWin(),
value=self.decim_txt,
callback=self.set_decim_txt,
label="Decimation",
converter=forms.str_converter(),
)
self.GridAdd(self._decim_txt_static_text, 0, 1, 1, 1)
_clock_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
label="Clock Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_clock_alpha_sizer, 1, 1, 1, 1)
self._baseband_file_txt_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.baseband_file_txt,
callback=self.set_baseband_file_txt,
label="Baseband filename",
converter=forms.str_converter(),
)
self.displays.GetPage(1).GridAdd(self._baseband_file_txt_static_text,
1, 0, 1, 1)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder(True, False)
self.frame_sink = gr.file_sink(gr.sizeof_short * 1,
"/home/jerry/NOAA-XX.hrpt")
self.frame_sink.set_unbuffered(False)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(
sps / 2.0, clock_alpha**2 / 4.0, 0.5, clock_alpha,
max_clock_offset)
self.gr_file_source_0 = gr.file_source(
gr.sizeof_short * 1,
"/home/jerry/hrpt/baseband/NOAA-18/2011-01-07T132821-NOAA-18.dat",
False)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex(
)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2 / 4.0,
max_carrier_offset)
self.poesweather_noaa_hrpt_deframer_0 = poesweather.noaa_hrpt_deframer(
sync_check)
self.rx_fft = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=5,
y_divs=10,
ref_level=45,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="NOAA HRPT Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).Add(self.rx_fft.win)
self.throttle = gr.throttle(gr.sizeof_short * 1, sample_rate * 10)
##################################################
# Connections
##################################################
self.connect((self.gr_interleaved_short_to_complex_0, 0),
(self.agc, 0))
self.connect((self.throttle, 0),
(self.gr_interleaved_short_to_complex_0, 0))
self.connect((self.gr_file_source_0, 0), (self.throttle, 0))
self.connect((self.agc, 0), (self.rx_fft, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0),
(self.frame_sink, 0))
self.connect((self.poesweather_noaa_hrpt_deframer_0, 0),
(self.decoder, 0))
self.connect((self.gr_binary_slicer_fb_0, 0),
(self.poesweather_noaa_hrpt_deframer_0, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0),
(self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.gr_binary_slicer_fb_0, 0))
def __init__(self,
side="A",
gain=35,
decim=32,
sync_check=False,
satellite='METEOR-M-1',
frames_file=os.environ['HOME'] + '/METEOR-M-1.hrpt',
freq=1700e6):
grc_wxgui.top_block_gui.__init__(self, title="USRP NOAA HRPT Receiver")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.side = side
self.gain = gain
self.decim = decim
self.sync_check = sync_check
self.satellite = satellite
self.frames_file = frames_file
self.freq = freq
##################################################
# Variables
##################################################
self.sym_rate = sym_rate = 600 * 1109
self.samp_rate = samp_rate = 64e6 / decim
self.config_filename = config_filename = os.environ[
'HOME'] + '/.gnuradio/mn1_hrpt.conf'
self.sps = sps = samp_rate / sym_rate
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try:
saved_pll_alpha = self._saved_pll_alpha_config.getfloat(
"satname", 'pll_alpha')
except:
saved_pll_alpha = 0.005
self.saved_pll_alpha = saved_pll_alpha
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try:
saved_clock_alpha = self._saved_clock_alpha_config.getfloat(
"satname", 'clock_alpha')
except:
saved_clock_alpha = 0.001
self.saved_clock_alpha = saved_clock_alpha
self.sync_check_txt = sync_check_txt = sync_check
self.side_text = side_text = side
self._saved_gain_config = ConfigParser.ConfigParser()
self._saved_gain_config.read(config_filename)
try:
saved_gain = self._saved_gain_config.getfloat("satname", 'gain')
except:
saved_gain = gain
self.saved_gain = saved_gain
self.satellite_text = satellite_text = satellite
self.sample_rate_text = sample_rate_text = samp_rate
self.pll_alpha = pll_alpha = saved_pll_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2 * math.pi * 100e3 / samp_rate
self.hs = hs = int(sps / 2.0)
self.gain_slider = gain_slider = gain
self.freq_tb = freq_tb = freq
self.frames_outfile_text = frames_outfile_text = frames_file
self.decim_tb = decim_tb = decim
self.datetime_text = datetime_text = strftime("%A, %B %d %Y %H:%M:%S",
localtime())
self.clock_alpha = clock_alpha = saved_clock_alpha
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays),
"RX Meteor M N1 HRPT")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Information")
self.Add(self.displays)
##################################################
# Controls
##################################################
self._sync_check_txt_static_text = forms.static_text(
parent=self.GetWin(),
value=self.sync_check_txt,
callback=self.set_sync_check_txt,
label="Sync check",
converter=forms.float_converter(),
)
self.GridAdd(self._sync_check_txt_static_text, 0, 2, 1, 1)
self._side_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.side_text,
callback=self.set_side_text,
label="USRP Side",
converter=forms.str_converter(),
)
self.GridAdd(self._side_text_static_text, 0, 0, 1, 1)
self._satellite_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.satellite_text,
callback=self.set_satellite_text,
label="Satellite",
converter=forms.str_converter(),
)
self.GridAdd(self._satellite_text_static_text, 0, 1, 1, 1)
self._sample_rate_text_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.sample_rate_text,
callback=self.set_sample_rate_text,
label="Sample rate",
converter=forms.float_converter(),
)
self.displays.GetPage(1).GridAdd(self._sample_rate_text_static_text, 3,
0, 1, 1)
_pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_pll_alpha_sizer,
value=self.pll_alpha,
callback=self.set_pll_alpha,
minimum=0.005,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_pll_alpha_sizer, 2, 1, 1, 1)
_gain_slider_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_slider_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_slider_sizer,
value=self.gain_slider,
callback=self.set_gain_slider,
label="Gain",
converter=forms.int_converter(),
proportion=0,
)
self._gain_slider_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_slider_sizer,
value=self.gain_slider,
callback=self.set_gain_slider,
minimum=0,
maximum=100,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=int,
proportion=1,
)
self.GridAdd(_gain_slider_sizer, 2, 0, 1, 1)
self._freq_tb_text_box = forms.text_box(
parent=self.GetWin(),
value=self.freq_tb,
callback=self.set_freq_tb,
label="Frequency",
converter=forms.float_converter(),
)
self.GridAdd(self._freq_tb_text_box, 1, 1, 1, 1)
self._frames_outfile_text_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.frames_outfile_text,
callback=self.set_frames_outfile_text,
label="Frames filename",
converter=forms.str_converter(),
)
self.displays.GetPage(1).GridAdd(self._frames_outfile_text_static_text,
4, 0, 1, 1)
self._decim_tb_text_box = forms.text_box(
parent=self.GetWin(),
value=self.decim_tb,
callback=self.set_decim_tb,
label="Decimation",
converter=forms.int_converter(),
)
self.GridAdd(self._decim_tb_text_box, 1, 0, 1, 1)
self._datetime_text_static_text = forms.static_text(
parent=self.displays.GetPage(1).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Acquisition start",
converter=forms.str_converter(),
)
self.displays.GetPage(1).GridAdd(self._datetime_text_static_text, 2, 0,
1, 1)
_clock_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
label="Clock alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_clock_alpha_sizer,
value=self.clock_alpha,
callback=self.set_clock_alpha,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_clock_alpha_sizer, 2, 2, 1, 1)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-5, 1.0, 1.0 / 32768.0, 1.0)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(
sps / 2.0, clock_alpha**2 / 4.0, 0.5, clock_alpha,
max_clock_offset)
self.gr_file_sink_0_0 = gr.file_sink(gr.sizeof_short * 1, frames_file)
self.gr_file_sink_0_0.set_unbuffered(False)
self.gr_interleaved_short_to_complex_0 = gr.interleaved_short_to_complex(
)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.gr_rms_xx_0 = gr.rms_cf(0.2)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2 / 4.0,
max_carrier_offset)
self.poesweather_mn1_hrpt_deframer_0 = poesweather.mn1_hrpt_deframer(
sync_check)
self.usrp_simple_source_x_0 = grc_usrp.simple_source_s(which=0,
side=side,
rx_ant="RXA")
self.usrp_simple_source_x_0.set_decim_rate(decim)
self.usrp_simple_source_x_0.set_frequency(freq, verbose=True)
self.usrp_simple_source_x_0.set_gain(gain)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=5,
y_divs=10,
ref_level=45,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="Meteor M N1 HRPT FFT Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).Add(self.wxgui_fftsink2_0.win)
self.wxgui_numbersink2_0 = numbersink2.number_sink_f(
self.GetWin(),
unit="Units",
minval=0,
maxval=5000,
factor=1.0,
decimal_places=4,
ref_level=0,
sample_rate=samp_rate,
number_rate=15,
average=True,
avg_alpha=0.07,
label="S-Meter",
peak_hold=False,
show_gauge=True,
)
self.Add(self.wxgui_numbersink2_0.win)
##################################################
# Connections
##################################################
self.connect((self.gr_binary_slicer_fb_0, 0),
(self.poesweather_mn1_hrpt_deframer_0, 0))
self.connect((self.usrp_simple_source_x_0, 0),
(self.gr_interleaved_short_to_complex_0, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0),
(self.agc, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.gr_binary_slicer_fb_0, 0))
self.connect((self.agc, 0), (self.pll, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0),
(self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0),
(self.wxgui_fftsink2_0, 0))
self.connect((self.gr_interleaved_short_to_complex_0, 0),
(self.gr_rms_xx_0, 0))
self.connect((self.gr_rms_xx_0, 0), (self.wxgui_numbersink2_0, 0))
self.connect((self.poesweather_mn1_hrpt_deframer_0, 0),
(self.gr_file_sink_0_0, 0))
def __init__(
self,
deframer_insync_frames=2,
deframer_outsync_frames=5,
deframer_sync_check=True,
pll_alpha=0.005,
satellite='NOAAxx',
decim=50,
symb_rate=600 * 1109,
baseband_file="/home/martin/GNURadioData/hrpt/baseband/HRPT_NOAA19_2010-09-10_12-35-34_UTC_U2_d50.sam",
frames_file=os.environ['HOME'] + '/noaa_hrpt_frames.hmf',
clock_alpha=0.005):
grc_wxgui.top_block_gui.__init__(
self, title="NOAA HRPT Receiver from baseband file")
##################################################
# Parameters
##################################################
self.deframer_insync_frames = deframer_insync_frames
self.deframer_outsync_frames = deframer_outsync_frames
self.deframer_sync_check = deframer_sync_check
self.pll_alpha = pll_alpha
self.satellite = satellite
self.decim = decim
self.symb_rate = symb_rate
self.baseband_file = baseband_file
self.frames_file = frames_file
self.clock_alpha = clock_alpha
##################################################
# Variables
##################################################
self.decim_tb = decim_tb = decim
self.symb_rate_tb = symb_rate_tb = symb_rate
self.samp_rate = samp_rate = 100e6 / decim_tb
self.sps = sps = samp_rate / symb_rate_tb
self.satellite_text = satellite_text = satellite
self.samp_rate_st = samp_rate_st = samp_rate
self.pll_alpha_sl = pll_alpha_sl = pll_alpha
self.max_clock_offset = max_clock_offset = 0.1
self.max_carrier_offset = max_carrier_offset = 2 * math.pi * 100e3 / samp_rate
self.hs = hs = int(sps / 2.0)
self.frames_file_text_inf = frames_file_text_inf = frames_file
self.deframer_sync_after_text = deframer_sync_after_text = deframer_insync_frames
self.deframer_nosync_after_text = deframer_nosync_after_text = deframer_outsync_frames
self.deframer_check_sync_text = deframer_check_sync_text = deframer_sync_check
self.datetime_text = datetime_text = strftime("%A, %B %d %Y %H:%M:%S",
localtime())
self.clock_alpha_sl = clock_alpha_sl = clock_alpha
self.baseband_file_text_inf = baseband_file_text_inf = baseband_file
##################################################
# Notebooks
##################################################
self.rx_ntb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Input baseband")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb),
"PLL demodulator and Clock sync")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Deframer")
self.rx_ntb.AddPage(grc_wxgui.Panel(self.rx_ntb), "Output")
self.Add(self.rx_ntb)
##################################################
# Controls
##################################################
self._decim_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.decim_tb,
callback=self.set_decim_tb,
label="Decimation",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._decim_tb_text_box, 1, 3, 1, 1)
self._symb_rate_tb_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
value=self.symb_rate_tb,
callback=self.set_symb_rate_tb,
label="Symbol rate",
converter=forms.int_converter(),
)
self.rx_ntb.GetPage(1).GridAdd(self._symb_rate_tb_text_box, 2, 1, 1, 1)
self._satellite_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.satellite_text,
callback=self.set_satellite_text,
label="Sat ",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._satellite_text_static_text, 1, 0,
1, 1)
self._samp_rate_st_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(0).GetWin(),
value=self.samp_rate_st,
callback=self.set_samp_rate_st,
label="Sample rate",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(0).GridAdd(self._samp_rate_st_static_text, 1, 4, 1,
1)
_pll_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._pll_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
label="PLL Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._pll_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_pll_alpha_sl_sizer,
value=self.pll_alpha_sl,
callback=self.set_pll_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_pll_alpha_sl_sizer, 1, 0, 1, 1)
self._frames_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.frames_file_text_inf,
callback=self.set_frames_file_text_inf,
label="Frames filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._frames_file_text_inf_static_text,
3, 0, 1, 1)
self._deframer_sync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_sync_after_text,
callback=self.set_deframer_sync_after_text,
label="Deframe sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._deframer_sync_after_text_static_text, 3, 0, 1, 1)
self._deframer_nosync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_nosync_after_text,
callback=self.set_deframer_nosync_after_text,
label="Deframer out of sync after",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._deframer_nosync_after_text_static_text, 4, 0, 1, 1)
self._deframer_check_sync_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.deframer_check_sync_text,
callback=self.set_deframer_check_sync_text,
label="Deframer check sync enable",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._deframer_check_sync_text_static_text, 2, 0, 1, 1)
self._datetime_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Local time of aquisition start",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(self._datetime_text_static_text, 1, 0,
1, 1)
_clock_alpha_sl_sizer = wx.BoxSizer(wx.VERTICAL)
self._clock_alpha_sl_text_box = forms.text_box(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
label="Clock alpha",
converter=forms.float_converter(),
proportion=0,
)
self._clock_alpha_sl_slider = forms.slider(
parent=self.rx_ntb.GetPage(1).GetWin(),
sizer=_clock_alpha_sl_sizer,
value=self.clock_alpha_sl,
callback=self.set_clock_alpha_sl,
minimum=0.001,
maximum=0.1,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.rx_ntb.GetPage(1).GridAdd(_clock_alpha_sl_sizer, 1, 1, 1, 1)
self._baseband_file_text_inf_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(3).GetWin(),
value=self.baseband_file_text_inf,
callback=self.set_baseband_file_text_inf,
label="Baseband filename",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(3).GridAdd(
self._baseband_file_text_inf_static_text, 4, 0, 1, 1)
##################################################
# Blocks
##################################################
self.cs2cf = gr.interleaved_short_to_complex()
self.gr_agc_xx_0_0 = gr.agc_cc(10e-6, 1, 1.0 / 32767.0, 1.0)
self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_ff(
sps / 2.0, clock_alpha**2 / 4.0, 0.5, clock_alpha,
max_clock_offset)
self.gr_file_sink_0_0 = gr.file_sink(gr.sizeof_short * 1, frames_file)
self.gr_file_source_0 = gr.file_source(gr.sizeof_short * 1,
baseband_file, False)
self.gr_moving_average_xx_0 = gr.moving_average_ff(hs, 1.0 / hs, 4000)
self.gr_throttle_0 = gr.throttle(gr.sizeof_short * 1, samp_rate * 2)
self.noaa_hrpt_decoder_0 = noaa.hrpt_decoder(True, False)
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2 / 4.0,
max_carrier_offset)
self.poesweather_univ_hrpt_deframer_0 = poesweather.univ_hrpt_deframer(
deframer_sync_check, 11090, deframer_insync_frames,
deframer_outsync_frames)
self.wxgui_fftsink1 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=5,
y_divs=10,
ref_level=50,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="Not filtered spectrum",
peak_hold=False,
)
self.rx_ntb.GetPage(0).Add(self.wxgui_fftsink1.win)
##################################################
# Connections
##################################################
self.connect((self.gr_file_source_0, 0), (self.gr_throttle_0, 0))
self.connect((self.gr_throttle_0, 0), (self.cs2cf, 0))
self.connect((self.poesweather_univ_hrpt_deframer_0, 0),
(self.noaa_hrpt_decoder_0, 0))
self.connect((self.gr_binary_slicer_fb_0, 0),
(self.poesweather_univ_hrpt_deframer_0, 0))
self.connect((self.poesweather_univ_hrpt_deframer_0, 0),
(self.gr_file_sink_0_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.gr_binary_slicer_fb_0, 0))
self.connect((self.pll, 0), (self.gr_moving_average_xx_0, 0))
self.connect((self.gr_moving_average_xx_0, 0),
(self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.cs2cf, 0), (self.gr_agc_xx_0_0, 0))
self.connect((self.gr_agc_xx_0_0, 0), (self.pll, 0))
self.connect((self.cs2cf, 0), (self.wxgui_fftsink1, 0))
