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_sync_check=True, viterbi_insync_frames=5, deframer_outsync_frames=5, viterbi_outsync_frames=20, viterbi_sync_check=True, viterbi_sync_threshold=0.1, satellite='GOES-LRIT', freq=1691.02e6, gain=23, decim=108, side="A", pll_alpha=0.005, symb_rate=293883, clock_alpha=0.005):
grc_wxgui.top_block_gui.__init__(self, title="USRP LRIT Receiver - check signal quality")
##################################################
# Parameters
##################################################
self.deframer_insync_frames = deframer_insync_frames
self.deframer_sync_check = deframer_sync_check
self.viterbi_insync_frames = viterbi_insync_frames
self.deframer_outsync_frames = deframer_outsync_frames
self.viterbi_outsync_frames = viterbi_outsync_frames
self.viterbi_sync_check = viterbi_sync_check
self.viterbi_sync_threshold = viterbi_sync_threshold
self.satellite = satellite
self.freq = freq
self.gain = gain
self.decim = decim
self.side = side
self.pll_alpha = pll_alpha
self.symb_rate = symb_rate
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 = 64e6/decim_tb
self.viterbi_sync_threshold_text = viterbi_sync_threshold_text = viterbi_sync_threshold
self.viterbi_sync_after_text = viterbi_sync_after_text = viterbi_insync_frames
self.viterbi_outofsync_after_text = viterbi_outofsync_after_text = viterbi_outsync_frames
self.viterbi_node_sync_text = viterbi_node_sync_text = viterbi_sync_check
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.gain_tb = gain_tb = gain
self.freq_tb = freq_tb = freq
self.frames_file_text_inf = frames_file_text_inf = 'no output 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 = 'no output 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), "Viterbi decoder")
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._viterbi_sync_threshold_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.viterbi_sync_threshold_text,
callback=self.set_viterbi_sync_threshold_text,
label="Viterbi node sync threshold [BER]",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._viterbi_sync_threshold_text_static_text, 3, 0, 1, 1)
self._viterbi_sync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.viterbi_sync_after_text,
callback=self.set_viterbi_sync_after_text,
label="Valid frames for Viterbi decoder sync",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._viterbi_sync_after_text_static_text, 4, 0, 1, 1)
self._viterbi_outofsync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.viterbi_outofsync_after_text,
callback=self.set_viterbi_outofsync_after_text,
label="Invalid frames for Viterbi decoder out of sync",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._viterbi_outofsync_after_text_static_text, 5, 0, 1, 1)
self._viterbi_node_sync_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.viterbi_node_sync_text,
callback=self.set_viterbi_node_sync_text,
label="Viterbi node sync enable",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(self._viterbi_node_sync_text_static_text, 2, 0, 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(4).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(4).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(3).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(3).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(3).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(3).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(3).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(3).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(4).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Local time of aquisition start",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(4).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(4).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(4).GridAdd(self._baseband_file_text_inf_static_text, 4, 0, 1, 1)
##################################################
# Blocks
##################################################
self.fec_decode_viterbi_bpsk_fb_0 = fec.decode_viterbi_bpsk_fb(viterbi_sync_check, viterbi_sync_threshold, viterbi_insync_frames, viterbi_outsync_frames, viterbi_outsync_frames*3)
self.gr_agc_xx_0 = gr.agc_cc(10e-6, 1, 1.0/32767.0, 1.0)
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_cc(sps, clock_alpha_sl*clock_alpha_sl/4.0, 0.5, clock_alpha_sl, 0.05)
self.gr_complex_to_real_0 = gr.complex_to_real(1)
self.gr_costas_loop_cc_0 = gr.costas_loop_cc(pll_alpha_sl, pll_alpha_sl*pll_alpha_sl/4.0, 0.07, -0.07, 2)
self.gr_multiply_const_vxx_0 = gr.multiply_const_vcc((1, ))
self.gr_null_sink_0 = gr.null_sink(gr.sizeof_char*1)
self.gr_packed_to_unpacked_xx_0 = gr.packed_to_unpacked_bb(1, gr.GR_MSB_FIRST)
self.poesweather_metop_cadu_deframer_0 = poesweather.metop_cadu_deframer(True, 1024, deframer_insync_frames, deframer_outsync_frames)
self.root_raised_cosine_filter_0 = gr.fir_filter_ccf(1, firdes.root_raised_cosine(
1, samp_rate, symb_rate, 0.25, int(11*samp_rate/symb_rate)))
self.usrp_simple_source = grc_usrp.simple_source_c(which=0, side=side, rx_ant="RXA")
self.usrp_simple_source.set_decim_rate(decim_tb)
self.usrp_simple_source.set_frequency(freq_tb, verbose=True)
self.usrp_simple_source.set_gain(gain_tb)
self.wxgui_fftsink1 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=2,
y_divs=10,
ref_level=12,
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.wxgui_fftsink2 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=2,
y_divs=10,
ref_level=12,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="RRC filtered spectrum",
peak_hold=False,
)
self.rx_ntb.GetPage(0).Add(self.wxgui_fftsink2.win)
self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
self.rx_ntb.GetPage(1).GetWin(),
title="BPSK constellation diagram",
sample_rate=symb_rate,
v_scale=0.4,
v_offset=0,
t_scale=1/samp_rate,
ac_couple=False,
xy_mode=True,
num_inputs=1,
)
self.rx_ntb.GetPage(1).Add(self.wxgui_scopesink2_1.win)
##################################################
# Connections
##################################################
self.connect((self.usrp_simple_source, 0), (self.gr_agc_xx_0, 0))
self.connect((self.gr_agc_xx_0, 0), (self.root_raised_cosine_filter_0, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.gr_complex_to_real_0, 0))
self.connect((self.fec_decode_viterbi_bpsk_fb_0, 0), (self.gr_packed_to_unpacked_xx_0, 0))
self.connect((self.gr_packed_to_unpacked_xx_0, 0), (self.poesweather_metop_cadu_deframer_0, 0))
self.connect((self.gr_complex_to_real_0, 0), (self.fec_decode_viterbi_bpsk_fb_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.gr_multiply_const_vxx_0, 0))
self.connect((self.gr_costas_loop_cc_0, 0), (self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.gr_costas_loop_cc_0, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.wxgui_scopesink2_1, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.wxgui_fftsink2, 0))
self.connect((self.gr_agc_xx_0, 0), (self.wxgui_fftsink1, 0))
self.connect((self.poesweather_metop_cadu_deframer_0, 0), (self.gr_null_sink_0, 0))
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):
grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver")
##################################################
# Variables
##################################################
self.config_filename = config_filename = 'usrp_rx_hrpt.cfg'
self._decim_config = ConfigParser.ConfigParser()
self._decim_config.read(config_filename)
try: decim = self._decim_config.getfloat('usrp', 'decim')
except: decim = 16
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', 'side')
except: side = 'A'
self.side = side
self._saved_sync_alpha_config = ConfigParser.ConfigParser()
self._saved_sync_alpha_config.read(config_filename)
try: saved_sync_alpha = self._saved_sync_alpha_config.getfloat('demod', 'sync_alpha')
except: saved_sync_alpha = 0.05
self.saved_sync_alpha = saved_sync_alpha
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('demod', 'pll_alpha')
except: saved_pll_alpha = 0.05
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', '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', 'freq')
except: saved_freq = 1698e6
self.saved_freq = saved_freq
self.hs = hs = int(sps/2.0)
self.sync_alpha = sync_alpha = saved_sync_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('output', 'filename')
except: output_filename = 'frames.dat'
self.output_filename = output_filename
self.mf_taps = mf_taps = [-0.5/hs,]*hs+[0.5/hs,]*hs
self.max_sync_offset = max_sync_offset = 0.01
self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/sample_rate
self.gain = gain = saved_gain
self.freq = freq = saved_freq
self.decim_text = decim_text = decim
##################################################
# Controls
##################################################
_sync_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._sync_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_sync_alpha_sizer,
value=self.sync_alpha,
callback=self.set_sync_alpha,
label="SYNC Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._sync_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_sync_alpha_sizer,
value=self.sync_alpha,
callback=self.set_sync_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_sync_alpha_sizer, 0, 3, 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, 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)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder()
self.deframer = noaa.hrpt_deframer()
self.frame_sink = gr.file_sink(gr.sizeof_short*1, output_filename)
self.gr_fir_filter_xxx_0 = gr.fir_filter_ccc(1, (mf_taps))
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
self.pll_scope = scopesink2.scope_sink_f(
self.GetWin(),
title="Demod Waveform",
sample_rate=sample_rate,
v_scale=0.5,
t_scale=20.0/sample_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.GridAdd(self.pll_scope.win, 2, 0, 1, 4)
self.sync = noaa.hrpt_sync_fb(sync_alpha, sync_alpha**2/4.0, sps, max_sync_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.gr_fir_filter_xxx_0, 0), (self.pll, 0))
self.connect((self.agc, 0), (self.gr_fir_filter_xxx_0, 0))
self.connect((self.usrp_source, 0), (self.agc, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.pll, 0), (self.pll_scope, 0))
self.connect((self.pll, 0), (self.sync, 0))
self.connect((self.sync, 0), (self.deframer, 0))
self.connect((self.deframer, 0), (self.frame_sink, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver")
##################################################
# Variables
##################################################
self.config_filename = config_filename = "usrp_rx_hrpt.cfg"
self._decim_config = ConfigParser.ConfigParser()
self._decim_config.read(config_filename)
try:
decim = self._decim_config.getfloat("usrp", "decim")
except:
decim = 16
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", "side")
except:
side = "A"
self.side = side
self._saved_sync_alpha_config = ConfigParser.ConfigParser()
self._saved_sync_alpha_config.read(config_filename)
try:
saved_sync_alpha = self._saved_sync_alpha_config.getfloat("demod", "sync_alpha")
except:
saved_sync_alpha = 0.05
self.saved_sync_alpha = saved_sync_alpha
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("demod", "pll_alpha")
except:
saved_pll_alpha = 0.05
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", "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", "freq")
except:
saved_freq = 1698e6
self.saved_freq = saved_freq
self.hs = hs = int(sps / 2.0)
self.sync_alpha = sync_alpha = saved_sync_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("output", "filename")
except:
output_filename = "frames.dat"
self.output_filename = output_filename
self.mf_taps = mf_taps = [-0.5 / hs] * hs + [0.5 / hs] * hs
self.max_sync_offset = max_sync_offset = 0.01
self.max_carrier_offset = max_carrier_offset = 2 * math.pi * 100e3 / sample_rate
self.gain = gain = saved_gain
self.freq = freq = saved_freq
self.decim_text = decim_text = decim
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "RX")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Demod")
self.GridAdd(self.displays, 2, 0, 1, 4)
##################################################
# Controls
##################################################
_sync_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._sync_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_sync_alpha_sizer,
value=self.sync_alpha,
callback=self.set_sync_alpha,
label="SYNC Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._sync_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_sync_alpha_sizer,
value=self.sync_alpha,
callback=self.set_sync_alpha,
minimum=0.0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_sync_alpha_sizer, 0, 3, 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, 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)
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder()
self.deframer = noaa.hrpt_deframer()
self.frame_sink = gr.file_sink(gr.sizeof_short * 1, output_filename)
self.gr_fir_filter_xxx_0 = gr.fir_filter_ccc(1, (mf_taps))
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha ** 2 / 4.0, max_carrier_offset)
self.pll_scope = scopesink2.scope_sink_f(
self.displays.GetPage(1).GetWin(),
title="Demod Waveform",
sample_rate=sample_rate,
v_scale=0.5,
t_scale=20.0 / sample_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(1).GridAdd(self.pll_scope.win, 0, 0, 1, 1)
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,
)
self.displays.GetPage(0).GridAdd(self.rx_fft.win, 0, 0, 1, 1)
self.rx_scope = scopesink2.scope_sink_c(
self.displays.GetPage(0).GetWin(),
title="RX Waveform",
sample_rate=sample_rate,
v_scale=0,
t_scale=20.0 / sample_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(0).GridAdd(self.rx_scope.win, 1, 0, 1, 1)
self.sync = noaa.hrpt_sync_fb(sync_alpha, sync_alpha ** 2 / 4.0, sps, max_sync_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.deframer, 0), (self.frame_sink, 0))
self.connect((self.sync, 0), (self.deframer, 0))
self.connect((self.pll, 0), (self.sync, 0))
self.connect((self.pll, 0), (self.pll_scope, 0))
self.connect((self.agc, 0), (self.rx_scope, 0))
self.connect((self.agc, 0), (self.rx_fft, 0))
self.connect((self.deframer, 0), (self.decoder, 0))
self.connect((self.agc, 0), (self.gr_fir_filter_xxx_0, 0))
self.connect((self.gr_fir_filter_xxx_0, 0), (self.pll, 0))
self.connect((self.usrp_source, 0), (self.agc, 0))
def __init__(self,
deframer_insync_frames=2,
deframer_sync_check=True,
viterbi_insync_frames=5,
deframer_outsync_frames=5,
viterbi_outsync_frames=20,
viterbi_sync_check=True,
viterbi_sync_threshold=0.1,
satellite='GOES-LRIT',
freq=1691.02e6,
gain=23,
decim=108,
side="A",
pll_alpha=0.005,
symb_rate=293883,
clock_alpha=0.005):
grc_wxgui.top_block_gui.__init__(
self, title="USRP LRIT Receiver - check signal quality")
##################################################
# Parameters
##################################################
self.deframer_insync_frames = deframer_insync_frames
self.deframer_sync_check = deframer_sync_check
self.viterbi_insync_frames = viterbi_insync_frames
self.deframer_outsync_frames = deframer_outsync_frames
self.viterbi_outsync_frames = viterbi_outsync_frames
self.viterbi_sync_check = viterbi_sync_check
self.viterbi_sync_threshold = viterbi_sync_threshold
self.satellite = satellite
self.freq = freq
self.gain = gain
self.decim = decim
self.side = side
self.pll_alpha = pll_alpha
self.symb_rate = symb_rate
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 = 64e6 / decim_tb
self.viterbi_sync_threshold_text = viterbi_sync_threshold_text = viterbi_sync_threshold
self.viterbi_sync_after_text = viterbi_sync_after_text = viterbi_insync_frames
self.viterbi_outofsync_after_text = viterbi_outofsync_after_text = viterbi_outsync_frames
self.viterbi_node_sync_text = viterbi_node_sync_text = viterbi_sync_check
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.gain_tb = gain_tb = gain
self.freq_tb = freq_tb = freq
self.frames_file_text_inf = frames_file_text_inf = 'no output 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 = 'no output 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), "Viterbi decoder")
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._viterbi_sync_threshold_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.viterbi_sync_threshold_text,
callback=self.set_viterbi_sync_threshold_text,
label="Viterbi node sync threshold [BER]",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._viterbi_sync_threshold_text_static_text, 3, 0, 1, 1)
self._viterbi_sync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.viterbi_sync_after_text,
callback=self.set_viterbi_sync_after_text,
label="Valid frames for Viterbi decoder sync",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._viterbi_sync_after_text_static_text, 4, 0, 1, 1)
self._viterbi_outofsync_after_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.viterbi_outofsync_after_text,
callback=self.set_viterbi_outofsync_after_text,
label="Invalid frames for Viterbi decoder out of sync",
converter=forms.float_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._viterbi_outofsync_after_text_static_text, 5, 0, 1, 1)
self._viterbi_node_sync_text_static_text = forms.static_text(
parent=self.rx_ntb.GetPage(2).GetWin(),
value=self.viterbi_node_sync_text,
callback=self.set_viterbi_node_sync_text,
label="Viterbi node sync enable",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(2).GridAdd(
self._viterbi_node_sync_text_static_text, 2, 0, 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(4).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(4).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(3).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(3).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(3).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(3).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(3).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(3).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(4).GetWin(),
value=self.datetime_text,
callback=self.set_datetime_text,
label="Local time of aquisition start",
converter=forms.str_converter(),
)
self.rx_ntb.GetPage(4).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(4).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(4).GridAdd(
self._baseband_file_text_inf_static_text, 4, 0, 1, 1)
##################################################
# Blocks
##################################################
self.fec_decode_viterbi_bpsk_fb_0 = fec.decode_viterbi_bpsk_fb(
viterbi_sync_check, viterbi_sync_threshold, viterbi_insync_frames,
viterbi_outsync_frames, viterbi_outsync_frames * 3)
self.gr_agc_xx_0 = gr.agc_cc(10e-6, 1, 1.0 / 32767.0, 1.0)
self.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_cc(
sps, clock_alpha_sl * clock_alpha_sl / 4.0, 0.5, clock_alpha_sl,
0.05)
self.gr_complex_to_real_0 = gr.complex_to_real(1)
self.gr_costas_loop_cc_0 = gr.costas_loop_cc(
pll_alpha_sl, pll_alpha_sl * pll_alpha_sl / 4.0, 0.07, -0.07, 2)
self.gr_multiply_const_vxx_0 = gr.multiply_const_vcc((1, ))
self.gr_null_sink_0 = gr.null_sink(gr.sizeof_char * 1)
self.gr_packed_to_unpacked_xx_0 = gr.packed_to_unpacked_bb(
1, gr.GR_MSB_FIRST)
self.poesweather_metop_cadu_deframer_0 = poesweather.metop_cadu_deframer(
True, 1024, deframer_insync_frames, deframer_outsync_frames)
self.root_raised_cosine_filter_0 = gr.fir_filter_ccf(
1,
firdes.root_raised_cosine(1, samp_rate, symb_rate, 0.25,
int(11 * samp_rate / symb_rate)))
self.usrp_simple_source = grc_usrp.simple_source_c(which=0,
side=side,
rx_ant="RXA")
self.usrp_simple_source.set_decim_rate(decim_tb)
self.usrp_simple_source.set_frequency(freq_tb, verbose=True)
self.usrp_simple_source.set_gain(gain_tb)
self.wxgui_fftsink1 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=2,
y_divs=10,
ref_level=12,
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.wxgui_fftsink2 = fftsink2.fft_sink_c(
self.rx_ntb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=2,
y_divs=10,
ref_level=12,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=30,
average=True,
avg_alpha=0.1,
title="RRC filtered spectrum",
peak_hold=False,
)
self.rx_ntb.GetPage(0).Add(self.wxgui_fftsink2.win)
self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
self.rx_ntb.GetPage(1).GetWin(),
title="BPSK constellation diagram",
sample_rate=symb_rate,
v_scale=0.4,
v_offset=0,
t_scale=1 / samp_rate,
ac_couple=False,
xy_mode=True,
num_inputs=1,
)
self.rx_ntb.GetPage(1).Add(self.wxgui_scopesink2_1.win)
##################################################
# Connections
##################################################
self.connect((self.usrp_simple_source, 0), (self.gr_agc_xx_0, 0))
self.connect((self.gr_agc_xx_0, 0),
(self.root_raised_cosine_filter_0, 0))
self.connect((self.gr_multiply_const_vxx_0, 0),
(self.gr_complex_to_real_0, 0))
self.connect((self.fec_decode_viterbi_bpsk_fb_0, 0),
(self.gr_packed_to_unpacked_xx_0, 0))
self.connect((self.gr_packed_to_unpacked_xx_0, 0),
(self.poesweather_metop_cadu_deframer_0, 0))
self.connect((self.gr_complex_to_real_0, 0),
(self.fec_decode_viterbi_bpsk_fb_0, 0))
self.connect((self.gr_clock_recovery_mm_xx_0, 0),
(self.gr_multiply_const_vxx_0, 0))
self.connect((self.gr_costas_loop_cc_0, 0),
(self.gr_clock_recovery_mm_xx_0, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.gr_costas_loop_cc_0, 0))
self.connect((self.gr_multiply_const_vxx_0, 0),
(self.wxgui_scopesink2_1, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.wxgui_fftsink2, 0))
self.connect((self.gr_agc_xx_0, 0), (self.wxgui_fftsink1, 0))
self.connect((self.poesweather_metop_cadu_deframer_0, 0),
(self.gr_null_sink_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):
grc_wxgui.top_block_gui.__init__(
self, title="USRP FLEX Pager Receiver (Single Channel)")
##################################################
# Variables
##################################################
self.config_filename = config_filename = os.environ[
"HOME"] + "/.gnuradio/config.conf"
self.symbol_rate = symbol_rate = 3200
self._saved_channel_config = ConfigParser.ConfigParser()
self._saved_channel_config.read(config_filename)
try:
saved_channel = self._saved_channel_config.getint(
"gr-pager", "channel")
except:
saved_channel = 25
self.saved_channel = saved_channel
self._saved_band_freq_config = ConfigParser.ConfigParser()
self._saved_band_freq_config.read(config_filename)
try:
saved_band_freq = self._saved_band_freq_config.getfloat(
"gr-pager", "band_center")
except:
saved_band_freq = 930.5125e6
self.saved_band_freq = saved_band_freq
self.deviation = deviation = 4800
self.decim = decim = 20
self.adc_rate = adc_rate = 64e6
self.sample_rate = sample_rate = adc_rate / decim
self.passband = passband = 2 * (deviation + symbol_rate)
self.channel_rate = channel_rate = 8 * 3200
self.channel = channel = saved_channel
self.band_freq = band_freq = saved_band_freq
self._saved_rx_gain_config = ConfigParser.ConfigParser()
self._saved_rx_gain_config.read(config_filename)
try:
saved_rx_gain = self._saved_rx_gain_config.getint(
"gr-pager", "rx_gain")
except:
saved_rx_gain = 40
self.saved_rx_gain = saved_rx_gain
self._saved_offset_config = ConfigParser.ConfigParser()
self._saved_offset_config.read(config_filename)
try:
saved_offset = self._saved_offset_config.getfloat(
"gr-pager", "freq_offset")
except:
saved_offset = 0
self.saved_offset = saved_offset
self.freq = freq = band_freq + (channel - 61) * 25e3
self.channel_taps = channel_taps = firdes.low_pass(
10, sample_rate, passband / 2.0, (channel_rate - passband) / 2.0)
self.rx_gain = rx_gain = saved_rx_gain
self.offset = offset = saved_offset
self.nchan_taps = nchan_taps = len(channel_taps)
self.ma_ntaps = ma_ntaps = int(channel_rate / symbol_rate)
self.freq_text = freq_text = freq
self.demod_k = demod_k = 3 * channel_rate / (2 * math.pi * deviation)
self.channel_decim = channel_decim = int(sample_rate / channel_rate)
self.bb_interp = bb_interp = 5
self.bb_decim = bb_decim = 8
self.baseband_rate = baseband_rate = 16000
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "RX Spectrum")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Baseband")
self.GridAdd(self.displays, 1, 0, 1, 5)
##################################################
# Controls
##################################################
_channel_sizer = wx.BoxSizer(wx.VERTICAL)
self._channel_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_channel_sizer,
value=self.channel,
callback=self.set_channel,
label="Channel",
converter=forms.int_converter(),
proportion=0,
)
self._channel_slider = forms.slider(
parent=self.GetWin(),
sizer=_channel_sizer,
value=self.channel,
callback=self.set_channel,
minimum=1,
maximum=120,
num_steps=119,
style=wx.SL_HORIZONTAL,
cast=int,
proportion=1,
)
self.GridAdd(_channel_sizer, 0, 1, 1, 1)
self._band_freq_text_box = forms.text_box(
parent=self.GetWin(),
value=self.band_freq,
callback=self.set_band_freq,
label="Band Freq.",
converter=forms.float_converter(),
)
self.GridAdd(self._band_freq_text_box, 0, 0, 1, 1)
_rx_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._rx_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_rx_gain_sizer,
value=self.rx_gain,
callback=self.set_rx_gain,
label="Analog Gain",
converter=forms.int_converter(),
proportion=0,
)
self._rx_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_rx_gain_sizer,
value=self.rx_gain,
callback=self.set_rx_gain,
minimum=0,
maximum=100,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=int,
proportion=1,
)
self.GridAdd(_rx_gain_sizer, 0, 4, 1, 1)
_offset_sizer = wx.BoxSizer(wx.VERTICAL)
self._offset_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
label="Freq. Offset",
converter=forms.float_converter(),
proportion=0,
)
self._offset_slider = forms.slider(
parent=self.GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
minimum=-12.5e3,
maximum=12.5e3,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_offset_sizer, 0, 3, 1, 1)
self._freq_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.freq_text,
callback=self.set_freq_text,
label="Ch. Freq",
converter=forms.float_converter(),
)
self.GridAdd(self._freq_text_static_text, 0, 2, 1, 1)
##################################################
# Blocks
##################################################
self.fm_demod = gr.quadrature_demod_cf(demod_k)
self.gr_freq_xlating_fir_filter_xxx_0 = gr.freq_xlating_fir_filter_ccc(
channel_decim, (channel_taps), band_freq - freq + offset,
sample_rate)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_int * 1)
self.blocks_null_sink_0_0 = blocks.null_sink(gr.sizeof_int * 1)
self.blocks_null_sink_0_1 = blocks.null_sink(gr.sizeof_int * 1)
self.blocks_null_sink_0_2 = blocks.null_sink(gr.sizeof_int * 1)
self.pager_flex_deinterleave_0 = pager.flex_deinterleave()
self.pager_flex_deinterleave_0_0 = pager.flex_deinterleave()
self.pager_flex_deinterleave_0_1 = pager.flex_deinterleave()
self.pager_flex_deinterleave_0_1_0 = pager.flex_deinterleave()
self.pager_flex_sync_0 = pager.flex_sync()
self.pager_slicer_fb_0 = pager.slicer_fb(1e-6)
self.resampler = filter.rational_resampler_fff(
interpolation=bb_interp,
decimation=bb_decim,
taps=([
1.0 / ma_ntaps,
] * ma_ntaps * bb_interp),
fractional_bw=None,
)
self.usrp_source = grc_usrp.simple_source_c(which=0,
side="A",
rx_ant="RXA")
self.usrp_source.set_decim_rate(decim)
self.usrp_source.set_frequency(band_freq, verbose=True)
self.usrp_source.set_gain(rx_gain)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=band_freq,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=65536,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=30,
average=False,
avg_alpha=None,
title="FLEX Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).GridAdd(self.wxgui_fftsink2_0.win, 0, 0, 1, 1)
self.wxgui_fftsink2_1 = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=65536,
sample_rate=channel_rate,
fft_size=1024,
fft_rate=30,
average=False,
avg_alpha=None,
title="Channel Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).GridAdd(self.wxgui_fftsink2_1.win, 1, 0, 1, 1)
self.wxgui_scopesink2_0_0 = scopesink2.scope_sink_f(
self.displays.GetPage(1).GetWin(),
title="Baseband",
sample_rate=16e3,
v_scale=1,
v_offset=0,
t_scale=40.0 / 16e3,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0_0.win, 0, 0,
1, 1)
##################################################
# Connections
##################################################
self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0),
(self.wxgui_fftsink2_1, 0))
self.connect((self.usrp_source, 0),
(self.gr_freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.usrp_source, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0),
(self.fm_demod, 0))
self.connect((self.resampler, 0), (self.wxgui_scopesink2_0_0, 0))
self.connect((self.fm_demod, 0), (self.resampler, 0))
self.connect((self.pager_slicer_fb_0, 0), (self.pager_flex_sync_0, 0))
self.connect((self.resampler, 0), (self.pager_slicer_fb_0, 0))
self.connect((self.pager_flex_sync_0, 1),
(self.pager_flex_deinterleave_0_1_0, 0))
self.connect((self.pager_flex_sync_0, 2),
(self.pager_flex_deinterleave_0_1, 0))
self.connect((self.pager_flex_sync_0, 0),
(self.pager_flex_deinterleave_0, 0))
self.connect((self.pager_flex_sync_0, 3),
(self.pager_flex_deinterleave_0_0, 0))
self.connect((self.pager_flex_deinterleave_0, 0),
(self.blocks_null_sink_0, 0))
self.connect((self.pager_flex_deinterleave_0_1_0, 0),
(self.blocks_null_sink_0_0, 0))
self.connect((self.pager_flex_deinterleave_0_1, 0),
(self.blocks_null_sink_0_1, 0))
self.connect((self.pager_flex_deinterleave_0_0, 0),
(self.blocks_null_sink_0_2, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="USRP LRIT Receiver")
##################################################
# Variables
##################################################
self.config_filename = config_filename = os.environ[
'HOME'] + '/.gnuradio/config.conf'
self._saved_decim_config = ConfigParser.ConfigParser()
self._saved_decim_config.read(config_filename)
try:
saved_decim = self._saved_decim_config.getint(
'usrp_rx_lrit', 'decim')
except:
saved_decim = 160
self.saved_decim = saved_decim
self.decim = decim = saved_decim
self.symbol_rate = symbol_rate = 293e3
self._saved_offset_config = ConfigParser.ConfigParser()
self._saved_offset_config.read(config_filename)
try:
saved_offset = self._saved_offset_config.getfloat(
'usrp_rx_lrit', 'offset')
except:
saved_offset = 0
self.saved_offset = saved_offset
self._saved_gain_mu_config = ConfigParser.ConfigParser()
self._saved_gain_mu_config.read(config_filename)
try:
saved_gain_mu = self._saved_gain_mu_config.getfloat(
'usrp_rx_lrit', 'gain_mu')
except:
saved_gain_mu = 0.005
self.saved_gain_mu = saved_gain_mu
self._saved_gain_config = ConfigParser.ConfigParser()
self._saved_gain_config.read(config_filename)
try:
saved_gain = self._saved_gain_config.getfloat(
'usrp_rx_lrit', 'gain')
except:
saved_gain = 33
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_lrit', 'freq')
except:
saved_freq = 1691e6
self.saved_freq = saved_freq
self._saved_costas_alpha_config = ConfigParser.ConfigParser()
self._saved_costas_alpha_config.read(config_filename)
try:
saved_costas_alpha = self._saved_costas_alpha_config.getfloat(
'usrp_rx_lrit', 'costas_alpha')
except:
saved_costas_alpha = 0.005
self.saved_costas_alpha = saved_costas_alpha
self.sample_rate = sample_rate = 64e6 / decim
self.sps = sps = sample_rate / symbol_rate
self._side_config = ConfigParser.ConfigParser()
self._side_config.read(config_filename)
try:
side = self._side_config.get('usrp_rx_lrit', 'side')
except:
side = 'A'
self.side = side
self.offset = offset = saved_offset
self.gain_mu = gain_mu = saved_gain_mu
self.gain = gain = saved_gain
self.freq = freq = saved_freq
self.costas_alpha = costas_alpha = saved_costas_alpha
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "USRP RX")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "RRC")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "PLL")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Const")
self.GridAdd(self.displays, 2, 0, 1, 3)
##################################################
# Controls
##################################################
self._decim_text_box = forms.text_box(
parent=self.GetWin(),
value=self.decim,
callback=self.set_decim,
label="Decim",
converter=forms.int_converter(),
)
self.GridAdd(self._decim_text_box, 0, 2, 1, 1)
_offset_sizer = wx.BoxSizer(wx.VERTICAL)
self._offset_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
label="Offset",
converter=forms.float_converter(),
proportion=0,
)
self._offset_slider = forms.slider(
parent=self.GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
minimum=-50e3,
maximum=50e3,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_offset_sizer, 0, 1, 1, 1)
_gain_mu_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_mu_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_mu_sizer,
value=self.gain_mu,
callback=self.set_gain_mu,
label="Gain Mu",
converter=forms.float_converter(),
proportion=0,
)
self._gain_mu_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_mu_sizer,
value=self.gain_mu,
callback=self.set_gain_mu,
minimum=0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_mu_sizer, 1, 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="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=115,
num_steps=115,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 1, 0, 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)
_costas_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._costas_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_costas_alpha_sizer,
value=self.costas_alpha,
callback=self.set_costas_alpha,
label="Costas Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._costas_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_costas_alpha_sizer,
value=self.costas_alpha,
callback=self.set_costas_alpha,
minimum=0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_costas_alpha_sizer, 1, 1, 1, 1)
##################################################
# Blocks
##################################################
self.costas = gr.costas_loop_cc(costas_alpha,
(costas_alpha**2.0) / 4.0, 50e-6 * sps,
-50e-6 * sps, 2)
self.costas_spectrum = fftsink2.fft_sink_c(
self.displays.GetPage(2).GetWin(),
baseband_freq=freq + offset,
y_per_div=10,
y_divs=10,
ref_level=-15,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="PLL Spectrum",
peak_hold=False,
)
self.displays.GetPage(2).GridAdd(self.costas_spectrum.win, 0, 0, 1, 1)
self.costas_waveform = scopesink2.scope_sink_c(
self.displays.GetPage(2).GetWin(),
title="PLL Waveform",
sample_rate=sample_rate,
v_scale=0.5,
v_offset=0,
t_scale=20.0 / sample_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(2).GridAdd(self.costas_waveform.win, 1, 0, 1, 1)
self.gr_agc_xx_0 = gr.agc_cc(1e-6, 1.0, 1.0 / 32767.0, 1.0)
self.mm_const = scopesink2.scope_sink_c(
self.displays.GetPage(3).GetWin(),
title="Constellation",
sample_rate=symbol_rate,
v_scale=0.5,
v_offset=0,
t_scale=20.0 / symbol_rate,
ac_couple=False,
xy_mode=True,
num_inputs=1,
)
self.displays.GetPage(3).GridAdd(self.mm_const.win, 1, 0, 1, 1)
self.mm_spectrum = fftsink2.fft_sink_c(
self.displays.GetPage(3).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-15,
ref_scale=2.0,
sample_rate=symbol_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Bit Sync Spectrum",
peak_hold=False,
)
self.displays.GetPage(3).GridAdd(self.mm_spectrum.win, 0, 0, 1, 1)
self.mm_sync = gr.clock_recovery_mm_cc(sps, (gain_mu**2) / 4.0, 0.5,
gain_mu, 50e-6 * sps)
self.root_raised_cosine_filter_0 = gr.fir_filter_ccf(
1,
firdes.root_raised_cosine(1, sample_rate, symbol_rate, 0.25,
int(11 * sample_rate / symbol_rate)))
self.rrc_spectrum = fftsink2.fft_sink_c(
self.displays.GetPage(1).GetWin(),
baseband_freq=freq + offset,
y_per_div=10,
y_divs=10,
ref_level=-15,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="RRC Spectrum",
peak_hold=False,
)
self.displays.GetPage(1).GridAdd(self.rrc_spectrum.win, 0, 0, 1, 1)
self.rrc_waveform = scopesink2.scope_sink_c(
self.displays.GetPage(1).GetWin(),
title="RRC Waveform",
sample_rate=sample_rate,
v_scale=0.5,
v_offset=0,
t_scale=20.0 / sample_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(1).GridAdd(self.rrc_waveform.win, 1, 0, 1, 1)
self.rx_spectrum = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=10,
y_divs=10,
ref_level=50,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=30,
average=False,
avg_alpha=None,
title="RX Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).GridAdd(self.rx_spectrum.win, 0, 0, 1, 1)
self.rx_waveform = scopesink2.scope_sink_c(
self.displays.GetPage(0).GetWin(),
title="RX Waveform",
sample_rate=sample_rate,
v_scale=0,
v_offset=0,
t_scale=20.0 / sample_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(0).GridAdd(self.rx_waveform.win, 1, 0, 1, 1)
self.usrp_simple_source_x_0 = grc_usrp.simple_source_c(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 + offset, verbose=True)
self.usrp_simple_source_x_0.set_gain(gain)
##################################################
# Connections
##################################################
self.connect((self.gr_agc_xx_0, 0),
(self.root_raised_cosine_filter_0, 0))
self.connect((self.usrp_simple_source_x_0, 0), (self.gr_agc_xx_0, 0))
self.connect((self.usrp_simple_source_x_0, 0), (self.rx_spectrum, 0))
self.connect((self.usrp_simple_source_x_0, 0), (self.rx_waveform, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.rrc_waveform, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.rrc_spectrum, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.costas, 0))
self.connect((self.costas, 0), (self.costas_spectrum, 0))
self.connect((self.costas, 0), (self.costas_waveform, 0))
self.connect((self.costas, 0), (self.mm_sync, 0))
self.connect((self.mm_sync, 0), (self.mm_spectrum, 0))
self.connect((self.mm_sync, 0), (self.mm_const, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="USRP FLEX Pager Receiver (Single Channel)")
##################################################
# Variables
##################################################
self.config_filename = config_filename = os.environ["HOME"]+"/.gnuradio/config.conf"
self.symbol_rate = symbol_rate = 3200
self._saved_channel_config = ConfigParser.ConfigParser()
self._saved_channel_config.read(config_filename)
try: saved_channel = self._saved_channel_config.getint("gr-pager", "channel")
except: saved_channel = 25
self.saved_channel = saved_channel
self._saved_band_freq_config = ConfigParser.ConfigParser()
self._saved_band_freq_config.read(config_filename)
try: saved_band_freq = self._saved_band_freq_config.getfloat("gr-pager", "band_center")
except: saved_band_freq = 930.5125e6
self.saved_band_freq = saved_band_freq
self.deviation = deviation = 4800
self.decim = decim = 20
self.adc_rate = adc_rate = 64e6
self.sample_rate = sample_rate = adc_rate/decim
self.passband = passband = 2*(deviation+symbol_rate)
self.channel_rate = channel_rate = 8*3200
self.channel = channel = saved_channel
self.band_freq = band_freq = saved_band_freq
self._saved_rx_gain_config = ConfigParser.ConfigParser()
self._saved_rx_gain_config.read(config_filename)
try: saved_rx_gain = self._saved_rx_gain_config.getint("gr-pager", "rx_gain")
except: saved_rx_gain = 40
self.saved_rx_gain = saved_rx_gain
self._saved_offset_config = ConfigParser.ConfigParser()
self._saved_offset_config.read(config_filename)
try: saved_offset = self._saved_offset_config.getfloat("gr-pager", "freq_offset")
except: saved_offset = 0
self.saved_offset = saved_offset
self.freq = freq = band_freq+(channel-61)*25e3
self.channel_taps = channel_taps = firdes.low_pass(10, sample_rate, passband/2.0, (channel_rate-passband)/2.0)
self.rx_gain = rx_gain = saved_rx_gain
self.offset = offset = saved_offset
self.nchan_taps = nchan_taps = len(channel_taps)
self.ma_ntaps = ma_ntaps = int(channel_rate/symbol_rate)
self.freq_text = freq_text = freq
self.demod_k = demod_k = 3*channel_rate/(2*math.pi*deviation)
self.channel_decim = channel_decim = int(sample_rate/channel_rate)
self.bb_interp = bb_interp = 5
self.bb_decim = bb_decim = 8
self.baseband_rate = baseband_rate = 16000
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "RX Spectrum")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Baseband")
self.GridAdd(self.displays, 1, 0, 1, 5)
##################################################
# Controls
##################################################
_channel_sizer = wx.BoxSizer(wx.VERTICAL)
self._channel_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_channel_sizer,
value=self.channel,
callback=self.set_channel,
label="Channel",
converter=forms.int_converter(),
proportion=0,
)
self._channel_slider = forms.slider(
parent=self.GetWin(),
sizer=_channel_sizer,
value=self.channel,
callback=self.set_channel,
minimum=1,
maximum=120,
num_steps=119,
style=wx.SL_HORIZONTAL,
cast=int,
proportion=1,
)
self.GridAdd(_channel_sizer, 0, 1, 1, 1)
self._band_freq_text_box = forms.text_box(
parent=self.GetWin(),
value=self.band_freq,
callback=self.set_band_freq,
label="Band Freq.",
converter=forms.float_converter(),
)
self.GridAdd(self._band_freq_text_box, 0, 0, 1, 1)
_rx_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._rx_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_rx_gain_sizer,
value=self.rx_gain,
callback=self.set_rx_gain,
label="Analog Gain",
converter=forms.int_converter(),
proportion=0,
)
self._rx_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_rx_gain_sizer,
value=self.rx_gain,
callback=self.set_rx_gain,
minimum=0,
maximum=100,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=int,
proportion=1,
)
self.GridAdd(_rx_gain_sizer, 0, 4, 1, 1)
_offset_sizer = wx.BoxSizer(wx.VERTICAL)
self._offset_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
label="Freq. Offset",
converter=forms.float_converter(),
proportion=0,
)
self._offset_slider = forms.slider(
parent=self.GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
minimum=-12.5e3,
maximum=12.5e3,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_offset_sizer, 0, 3, 1, 1)
self._freq_text_static_text = forms.static_text(
parent=self.GetWin(),
value=self.freq_text,
callback=self.set_freq_text,
label="Ch. Freq",
converter=forms.float_converter(),
)
self.GridAdd(self._freq_text_static_text, 0, 2, 1, 1)
##################################################
# Blocks
##################################################
self.fm_demod = gr.quadrature_demod_cf(demod_k)
self.gr_freq_xlating_fir_filter_xxx_0 = gr.freq_xlating_fir_filter_ccc(channel_decim, (channel_taps), band_freq-freq+offset, sample_rate)
self.gr_null_sink_0 = gr.null_sink(gr.sizeof_int*1)
self.gr_null_sink_0_0 = gr.null_sink(gr.sizeof_int*1)
self.gr_null_sink_0_1 = gr.null_sink(gr.sizeof_int*1)
self.gr_null_sink_0_2 = gr.null_sink(gr.sizeof_int*1)
self.pager_flex_deinterleave_0 = pager.flex_deinterleave()
self.pager_flex_deinterleave_0_0 = pager.flex_deinterleave()
self.pager_flex_deinterleave_0_1 = pager.flex_deinterleave()
self.pager_flex_deinterleave_0_1_0 = pager.flex_deinterleave()
self.pager_flex_sync_0 = pager.flex_sync()
self.pager_slicer_fb_0 = pager.slicer_fb(1e-6)
self.resampler = blks2.rational_resampler_fff(
interpolation=bb_interp,
decimation=bb_decim,
taps=([1.0/ma_ntaps,]*ma_ntaps*bb_interp),
fractional_bw=None,
)
self.usrp_source = grc_usrp.simple_source_c(which=0, side="A", rx_ant="RXA")
self.usrp_source.set_decim_rate(decim)
self.usrp_source.set_frequency(band_freq, verbose=True)
self.usrp_source.set_gain(rx_gain)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=band_freq,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=65536,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=30,
average=False,
avg_alpha=None,
title="FLEX Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).GridAdd(self.wxgui_fftsink2_0.win, 0, 0, 1, 1)
self.wxgui_fftsink2_1 = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=65536,
sample_rate=channel_rate,
fft_size=1024,
fft_rate=30,
average=False,
avg_alpha=None,
title="Channel Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).GridAdd(self.wxgui_fftsink2_1.win, 1, 0, 1, 1)
self.wxgui_scopesink2_0_0 = scopesink2.scope_sink_f(
self.displays.GetPage(1).GetWin(),
title="Baseband",
sample_rate=16e3,
v_scale=1,
v_offset=0,
t_scale=40.0/16e3,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0_0.win, 0, 0, 1, 1)
##################################################
# Connections
##################################################
self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_fftsink2_1, 0))
self.connect((self.usrp_source, 0), (self.gr_freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.usrp_source, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0), (self.fm_demod, 0))
self.connect((self.resampler, 0), (self.wxgui_scopesink2_0_0, 0))
self.connect((self.fm_demod, 0), (self.resampler, 0))
self.connect((self.pager_slicer_fb_0, 0), (self.pager_flex_sync_0, 0))
self.connect((self.resampler, 0), (self.pager_slicer_fb_0, 0))
self.connect((self.pager_flex_sync_0, 1), (self.pager_flex_deinterleave_0_1_0, 0))
self.connect((self.pager_flex_sync_0, 2), (self.pager_flex_deinterleave_0_1, 0))
self.connect((self.pager_flex_sync_0, 0), (self.pager_flex_deinterleave_0, 0))
self.connect((self.pager_flex_sync_0, 3), (self.pager_flex_deinterleave_0_0, 0))
self.connect((self.pager_flex_deinterleave_0, 0), (self.gr_null_sink_0, 0))
self.connect((self.pager_flex_deinterleave_0_1_0, 0), (self.gr_null_sink_0_0, 0))
self.connect((self.pager_flex_deinterleave_0_1, 0), (self.gr_null_sink_0_1, 0))
self.connect((self.pager_flex_deinterleave_0_0, 0), (self.gr_null_sink_0_2, 0))
def __init__(self):
gr.top_block.__init__(self, "USRP HRPT Receiver")
##################################################
# Variables
##################################################
self.config_filename = config_filename = 'usrp_rx_hrpt.cfg'
self._decim_config = ConfigParser.ConfigParser()
self._decim_config.read(config_filename)
try: decim = self._decim_config.getfloat('usrp', 'decim')
except: decim = 16
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.hs = hs = int(sps/2.0)
self._sync_alpha_config = ConfigParser.ConfigParser()
self._sync_alpha_config.read(config_filename)
try: sync_alpha = self._sync_alpha_config.getfloat('demod', 'sync_alpha')
except: sync_alpha = 0.05
self.sync_alpha = sync_alpha
self._side_config = ConfigParser.ConfigParser()
self._side_config.read(config_filename)
try: side = self._side_config.get('usrp', '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('demod', 'pll_alpha')
except: pll_alpha = 0.05
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('output', 'filename')
except: output_filename = 'frames.dat'
self.output_filename = output_filename
self.mf_taps = mf_taps = [-0.5/hs,]*hs+[0.5/hs,]*hs
self.max_sync_offset = max_sync_offset = 0.01
self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/sample_rate
self._gain_config = ConfigParser.ConfigParser()
self._gain_config.read(config_filename)
try: gain = self._gain_config.getfloat('usrp', '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', 'freq')
except: freq = 1698e6
self.freq = freq
##################################################
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
self.decoder = noaa.hrpt_decoder()
self.deframer = noaa.hrpt_deframer()
self.frame_sink = gr.file_sink(gr.sizeof_short*1, output_filename)
self.gr_fir_filter_xxx_0 = gr.fir_filter_ccc(1, (mf_taps))
self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
self.sync = noaa.hrpt_sync_fb(sync_alpha, sync_alpha**2/4.0, sps, max_sync_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.deframer, 0), (self.decoder, 0))
self.connect((self.pll, 0), (self.sync, 0))
self.connect((self.sync, 0), (self.deframer, 0))
self.connect((self.deframer, 0), (self.frame_sink, 0))
self.connect((self.agc, 0), (self.gr_fir_filter_xxx_0, 0))
self.connect((self.gr_fir_filter_xxx_0, 0), (self.pll, 0))
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):
grc_wxgui.top_block_gui.__init__(self, title="USRP LRIT Receiver")
##################################################
# Variables
##################################################
self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/config.conf'
self._saved_decim_config = ConfigParser.ConfigParser()
self._saved_decim_config.read(config_filename)
try: saved_decim = self._saved_decim_config.getint('usrp_rx_lrit', 'decim')
except: saved_decim = 160
self.saved_decim = saved_decim
self.decim = decim = saved_decim
self.symbol_rate = symbol_rate = 293e3
self._saved_offset_config = ConfigParser.ConfigParser()
self._saved_offset_config.read(config_filename)
try: saved_offset = self._saved_offset_config.getfloat('usrp_rx_lrit', 'offset')
except: saved_offset = 0
self.saved_offset = saved_offset
self._saved_gain_mu_config = ConfigParser.ConfigParser()
self._saved_gain_mu_config.read(config_filename)
try: saved_gain_mu = self._saved_gain_mu_config.getfloat('usrp_rx_lrit', 'gain_mu')
except: saved_gain_mu = 0.005
self.saved_gain_mu = saved_gain_mu
self._saved_gain_config = ConfigParser.ConfigParser()
self._saved_gain_config.read(config_filename)
try: saved_gain = self._saved_gain_config.getfloat('usrp_rx_lrit', 'gain')
except: saved_gain = 33
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_lrit', 'freq')
except: saved_freq = 1691e6
self.saved_freq = saved_freq
self._saved_costas_alpha_config = ConfigParser.ConfigParser()
self._saved_costas_alpha_config.read(config_filename)
try: saved_costas_alpha = self._saved_costas_alpha_config.getfloat('usrp_rx_lrit', 'costas_alpha')
except: saved_costas_alpha = 0.005
self.saved_costas_alpha = saved_costas_alpha
self.sample_rate = sample_rate = 64e6/decim
self.sps = sps = sample_rate/symbol_rate
self._side_config = ConfigParser.ConfigParser()
self._side_config.read(config_filename)
try: side = self._side_config.get('usrp_rx_lrit', 'side')
except: side = 'A'
self.side = side
self.offset = offset = saved_offset
self.gain_mu = gain_mu = saved_gain_mu
self.gain = gain = saved_gain
self.freq = freq = saved_freq
self.costas_alpha = costas_alpha = saved_costas_alpha
##################################################
# Notebooks
##################################################
self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.displays.AddPage(grc_wxgui.Panel(self.displays), "USRP RX")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "RRC")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "PLL")
self.displays.AddPage(grc_wxgui.Panel(self.displays), "Const")
self.GridAdd(self.displays, 2, 0, 1, 3)
##################################################
# Controls
##################################################
self._decim_text_box = forms.text_box(
parent=self.GetWin(),
value=self.decim,
callback=self.set_decim,
label="Decim",
converter=forms.int_converter(),
)
self.GridAdd(self._decim_text_box, 0, 2, 1, 1)
_offset_sizer = wx.BoxSizer(wx.VERTICAL)
self._offset_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
label="Offset",
converter=forms.float_converter(),
proportion=0,
)
self._offset_slider = forms.slider(
parent=self.GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
minimum=-50e3,
maximum=50e3,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_offset_sizer, 0, 1, 1, 1)
_gain_mu_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_mu_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_mu_sizer,
value=self.gain_mu,
callback=self.set_gain_mu,
label="Gain Mu",
converter=forms.float_converter(),
proportion=0,
)
self._gain_mu_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_mu_sizer,
value=self.gain_mu,
callback=self.set_gain_mu,
minimum=0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_mu_sizer, 1, 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="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=115,
num_steps=115,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 1, 0, 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)
_costas_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
self._costas_alpha_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_costas_alpha_sizer,
value=self.costas_alpha,
callback=self.set_costas_alpha,
label="Costas Alpha",
converter=forms.float_converter(),
proportion=0,
)
self._costas_alpha_slider = forms.slider(
parent=self.GetWin(),
sizer=_costas_alpha_sizer,
value=self.costas_alpha,
callback=self.set_costas_alpha,
minimum=0,
maximum=0.5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_costas_alpha_sizer, 1, 1, 1, 1)
##################################################
# Blocks
##################################################
self.costas = gr.costas_loop_cc(costas_alpha, (costas_alpha**2.0)/4.0, 50e-6*sps, -50e-6*sps, 2)
self.costas_spectrum = fftsink2.fft_sink_c(
self.displays.GetPage(2).GetWin(),
baseband_freq=freq+offset,
y_per_div=10,
y_divs=10,
ref_level=-15,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="PLL Spectrum",
peak_hold=False,
)
self.displays.GetPage(2).GridAdd(self.costas_spectrum.win, 0, 0, 1, 1)
self.costas_waveform = scopesink2.scope_sink_c(
self.displays.GetPage(2).GetWin(),
title="PLL Waveform",
sample_rate=sample_rate,
v_scale=0.5,
v_offset=0,
t_scale=20.0/sample_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(2).GridAdd(self.costas_waveform.win, 1, 0, 1, 1)
self.gr_agc_xx_0 = gr.agc_cc(1e-6, 1.0, 1.0/32767.0, 1.0)
self.mm_const = scopesink2.scope_sink_c(
self.displays.GetPage(3).GetWin(),
title="Constellation",
sample_rate=symbol_rate,
v_scale=0.5,
v_offset=0,
t_scale=20.0/symbol_rate,
ac_couple=False,
xy_mode=True,
num_inputs=1,
)
self.displays.GetPage(3).GridAdd(self.mm_const.win, 1, 0, 1, 1)
self.mm_spectrum = fftsink2.fft_sink_c(
self.displays.GetPage(3).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-15,
ref_scale=2.0,
sample_rate=symbol_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Bit Sync Spectrum",
peak_hold=False,
)
self.displays.GetPage(3).GridAdd(self.mm_spectrum.win, 0, 0, 1, 1)
self.mm_sync = gr.clock_recovery_mm_cc(sps, (gain_mu**2)/4.0, 0.5, gain_mu, 50e-6*sps)
self.root_raised_cosine_filter_0 = gr.fir_filter_ccf(1, firdes.root_raised_cosine(
1, sample_rate, symbol_rate, 0.25, int(11*sample_rate/symbol_rate)))
self.rrc_spectrum = fftsink2.fft_sink_c(
self.displays.GetPage(1).GetWin(),
baseband_freq=freq+offset,
y_per_div=10,
y_divs=10,
ref_level=-15,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="RRC Spectrum",
peak_hold=False,
)
self.displays.GetPage(1).GridAdd(self.rrc_spectrum.win, 0, 0, 1, 1)
self.rrc_waveform = scopesink2.scope_sink_c(
self.displays.GetPage(1).GetWin(),
title="RRC Waveform",
sample_rate=sample_rate,
v_scale=0.5,
v_offset=0,
t_scale=20.0/sample_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(1).GridAdd(self.rrc_waveform.win, 1, 0, 1, 1)
self.rx_spectrum = fftsink2.fft_sink_c(
self.displays.GetPage(0).GetWin(),
baseband_freq=freq,
y_per_div=10,
y_divs=10,
ref_level=50,
ref_scale=2.0,
sample_rate=sample_rate,
fft_size=1024,
fft_rate=30,
average=False,
avg_alpha=None,
title="RX Spectrum",
peak_hold=False,
)
self.displays.GetPage(0).GridAdd(self.rx_spectrum.win, 0, 0, 1, 1)
self.rx_waveform = scopesink2.scope_sink_c(
self.displays.GetPage(0).GetWin(),
title="RX Waveform",
sample_rate=sample_rate,
v_scale=0,
v_offset=0,
t_scale=20.0/sample_rate,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.displays.GetPage(0).GridAdd(self.rx_waveform.win, 1, 0, 1, 1)
self.usrp_simple_source_x_0 = grc_usrp.simple_source_c(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+offset, verbose=True)
self.usrp_simple_source_x_0.set_gain(gain)
##################################################
# Connections
##################################################
self.connect((self.gr_agc_xx_0, 0), (self.root_raised_cosine_filter_0, 0))
self.connect((self.usrp_simple_source_x_0, 0), (self.gr_agc_xx_0, 0))
self.connect((self.usrp_simple_source_x_0, 0), (self.rx_spectrum, 0))
self.connect((self.usrp_simple_source_x_0, 0), (self.rx_waveform, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.rrc_waveform, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.rrc_spectrum, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.costas, 0))
self.connect((self.costas, 0), (self.costas_spectrum, 0))
self.connect((self.costas, 0), (self.costas_waveform, 0))
self.connect((self.costas, 0), (self.mm_sync, 0))
self.connect((self.mm_sync, 0), (self.mm_spectrum, 0))
self.connect((self.mm_sync, 0), (self.mm_const, 0))