X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=gr-noaa%2Fapps%2Ffile_rx_lrit.py;fp=gr-noaa%2Fapps%2Ffile_rx_lrit.py;h=9a50631f7d2a7ee9c83489d010b1cf13164514d0;hb=35e43e8d8c271e6842191cac3fc3f2f88a861183;hp=0000000000000000000000000000000000000000;hpb=ea29b08aeb54227e6628f655ccfdb96fe4d8c378;p=debian%2Fgnuradio

diff --git a/gr-noaa/apps/file_rx_lrit.py b/gr-noaa/apps/file_rx_lrit.py
new file mode 100755
index 00000000..9a50631f
--- /dev/null
+++ b/gr-noaa/apps/file_rx_lrit.py
@@ -0,0 +1,337 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: LRIT Receiver (from capture file)
+# Generated: Wed Dec 16 09:16:13 2009
+##################################################
+
+from gnuradio import eng_notation
+from gnuradio import gr
+from gnuradio import window
+from gnuradio.eng_option import eng_option
+from gnuradio.gr import firdes
+from gnuradio.wxgui import fftsink2
+from gnuradio.wxgui import forms
+from gnuradio.wxgui import scopesink2
+from grc_gnuradio import wxgui as grc_wxgui
+from optparse import OptionParser
+import ConfigParser
+import os
+import wx
+
+class file_rx_lrit(grc_wxgui.top_block_gui):
+
+	def __init__(self, decim=160):
+		grc_wxgui.top_block_gui.__init__(self, title="LRIT Receiver (from capture file)")
+
+		##################################################
+		# Parameters
+		##################################################
+		self.decim = decim
+
+		##################################################
+		# Variables
+		##################################################
+		self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/config.conf'
+		self.symbol_rate = symbol_rate = 293e3
+		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 = 0.2
+		self.saved_gain_mu = saved_gain_mu
+		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 = 0.2
+		self.saved_costas_alpha = saved_costas_alpha
+		self.sample_rate = sample_rate = 64e6/decim
+		self.sps = sps = sample_rate/symbol_rate
+		self.gain_mu = gain_mu = saved_gain_mu
+		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 Filter")
+		self.displays.AddPage(grc_wxgui.Panel(self.displays), "PLL")
+		self.displays.AddPage(grc_wxgui.Panel(self.displays), "MM")
+		self.GridAdd(self.displays, 1, 0, 1, 2)
+
+		##################################################
+		# Controls
+		##################################################
+		_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, 0, 1, 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, 0, 0, 1, 1)
+
+		##################################################
+		# Blocks
+		##################################################
+		self.costas = gr.costas_loop_cc(costas_alpha, (costas_alpha**2)/4.0, 50e-6*sps, -50e-6*sps, 2)
+		self.costas_spectrum = fftsink2.fft_sink_c(
+			self.displays.GetPage(2).GetWin(),
+			baseband_freq=0,
+			y_per_div=10,
+			y_divs=10,
+			ref_level=-15,
+			ref_scale=2.0,
+			sample_rate=sample_rate,
+			fft_size=1024,
+			fft_rate=30,
+			average=True,
+			avg_alpha=None,
+			title="PLL Spectrum",
+			peak_hold=False,
+			win=window.hanning,
+		)
+		self.displays.GetPage(2).GridAdd(self.costas_spectrum.win, 0, 0, 1, 1)
+		self.costas_spectrum_0 = 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=30,
+			average=True,
+			avg_alpha=None,
+			title="Bit Sync Spectrum",
+			peak_hold=False,
+			win=window.hanning,
+		)
+		self.displays.GetPage(3).GridAdd(self.costas_spectrum_0.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.gr_clock_recovery_mm_xx_0 = gr.clock_recovery_mm_cc(sps, (gain_mu**2)/4.0, 0.5, gain_mu, 50e-6)
+		self.gr_file_source_0 = gr.file_source(gr.sizeof_gr_complex*1, "lrit.dat", False)
+		self.gr_throttle_0 = gr.throttle(gr.sizeof_gr_complex*1, sample_rate)
+		self.mm_waveform = 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_waveform.win, 1, 0, 1, 1)
+		self.rrc = 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=0,
+			y_per_div=10,
+			y_divs=10,
+			ref_level=-15,
+			ref_scale=2.0,
+			sample_rate=sample_rate,
+			fft_size=1024,
+			fft_rate=30,
+			average=True,
+			avg_alpha=None,
+			title="RRC Spectrum",
+			peak_hold=False,
+			win=window.hanning,
+		)
+		self.displays.GetPage(1).GridAdd(self.rrc_spectrum.win, 0, 0, 1, 1)
+		self.rx_spectrum = fftsink2.fft_sink_c(
+			self.displays.GetPage(0).GetWin(),
+			baseband_freq=0,
+			y_per_div=5,
+			y_divs=10,
+			ref_level=50,
+			ref_scale=2.0,
+			sample_rate=sample_rate,
+			fft_size=1024,
+			fft_rate=15,
+			average=True,
+			avg_alpha=None,
+			title="Baseband 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="Baseband 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.rx_waveform_0 = 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.rx_waveform_0.win, 1, 0, 1, 1)
+
+		##################################################
+		# Connections
+		##################################################
+		self.connect((self.rrc, 0), (self.rx_waveform_0, 0))
+		self.connect((self.rrc, 0), (self.rrc_spectrum, 0))
+		self.connect((self.gr_agc_xx_0, 0), (self.rrc, 0))
+		self.connect((self.gr_throttle_0, 0), (self.rx_waveform, 0))
+		self.connect((self.gr_throttle_0, 0), (self.rx_spectrum, 0))
+		self.connect((self.gr_throttle_0, 0), (self.gr_agc_xx_0, 0))
+		self.connect((self.gr_file_source_0, 0), (self.gr_throttle_0, 0))
+		self.connect((self.rrc, 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.gr_clock_recovery_mm_xx_0, 0))
+		self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.costas_spectrum_0, 0))
+		self.connect((self.gr_clock_recovery_mm_xx_0, 0), (self.mm_waveform, 0))
+
+	def set_decim(self, decim):
+		self.decim = decim
+		self.set_sample_rate(64e6/self.decim)
+
+	def set_config_filename(self, config_filename):
+		self.config_filename = config_filename
+		self._saved_costas_alpha_config = ConfigParser.ConfigParser()
+		self._saved_costas_alpha_config.read(self.config_filename)
+		if not self._saved_costas_alpha_config.has_section('usrp_rx_lrit'):
+			self._saved_costas_alpha_config.add_section('usrp_rx_lrit')
+		self._saved_costas_alpha_config.set('usrp_rx_lrit', 'costas_alpha', str(self.costas_alpha))
+		self._saved_costas_alpha_config.write(open(self.config_filename, 'w'))
+		self._saved_gain_mu_config = ConfigParser.ConfigParser()
+		self._saved_gain_mu_config.read(self.config_filename)
+		if not self._saved_gain_mu_config.has_section('usrp_rx_lrit'):
+			self._saved_gain_mu_config.add_section('usrp_rx_lrit')
+		self._saved_gain_mu_config.set('usrp_rx_lrit', 'gain_mu', str(self.gain_mu))
+		self._saved_gain_mu_config.write(open(self.config_filename, 'w'))
+
+	def set_symbol_rate(self, symbol_rate):
+		self.symbol_rate = symbol_rate
+		self.set_sps(self.sample_rate/self.symbol_rate)
+		self.costas_spectrum_0.set_sample_rate(self.symbol_rate)
+		self.mm_waveform.set_sample_rate(self.symbol_rate)
+		self.rrc.set_taps(firdes.root_raised_cosine(1, self.sample_rate, self.symbol_rate, 0.25, int(11*self.sample_rate/self.symbol_rate)))
+
+	def set_saved_gain_mu(self, saved_gain_mu):
+		self.saved_gain_mu = saved_gain_mu
+		self.set_gain_mu(self.saved_gain_mu)
+
+	def set_saved_costas_alpha(self, saved_costas_alpha):
+		self.saved_costas_alpha = saved_costas_alpha
+		self.set_costas_alpha(self.saved_costas_alpha)
+
+	def set_sample_rate(self, sample_rate):
+		self.sample_rate = sample_rate
+		self.set_sps(self.sample_rate/self.symbol_rate)
+		self.rx_spectrum.set_sample_rate(self.sample_rate)
+		self.rx_waveform.set_sample_rate(self.sample_rate)
+		self.costas_spectrum.set_sample_rate(self.sample_rate)
+		self.costas_waveform.set_sample_rate(self.sample_rate)
+		self.rrc_spectrum.set_sample_rate(self.sample_rate)
+		self.rx_waveform_0.set_sample_rate(self.sample_rate)
+		self.rrc.set_taps(firdes.root_raised_cosine(1, self.sample_rate, self.symbol_rate, 0.25, int(11*self.sample_rate/self.symbol_rate)))
+
+	def set_sps(self, sps):
+		self.sps = sps
+		self.gr_clock_recovery_mm_xx_0.set_omega(self.sps)
+
+	def set_gain_mu(self, gain_mu):
+		self.gain_mu = gain_mu
+		self._gain_mu_slider.set_value(self.gain_mu)
+		self._gain_mu_text_box.set_value(self.gain_mu)
+		self.gr_clock_recovery_mm_xx_0.set_gain_omega((self.gain_mu**2)/4.0)
+		self.gr_clock_recovery_mm_xx_0.set_gain_mu(self.gain_mu)
+		self._saved_gain_mu_config = ConfigParser.ConfigParser()
+		self._saved_gain_mu_config.read(self.config_filename)
+		if not self._saved_gain_mu_config.has_section('usrp_rx_lrit'):
+			self._saved_gain_mu_config.add_section('usrp_rx_lrit')
+		self._saved_gain_mu_config.set('usrp_rx_lrit', 'gain_mu', str(self.gain_mu))
+		self._saved_gain_mu_config.write(open(self.config_filename, 'w'))
+
+	def set_costas_alpha(self, costas_alpha):
+		self.costas_alpha = costas_alpha
+		self._costas_alpha_slider.set_value(self.costas_alpha)
+		self._costas_alpha_text_box.set_value(self.costas_alpha)
+		self._saved_costas_alpha_config = ConfigParser.ConfigParser()
+		self._saved_costas_alpha_config.read(self.config_filename)
+		if not self._saved_costas_alpha_config.has_section('usrp_rx_lrit'):
+			self._saved_costas_alpha_config.add_section('usrp_rx_lrit')
+		self._saved_costas_alpha_config.set('usrp_rx_lrit', 'costas_alpha', str(self.costas_alpha))
+		self._saved_costas_alpha_config.write(open(self.config_filename, 'w'))
+		self.costas.set_alpha(self.costas_alpha)
+		self.costas.set_beta((self.costas_alpha**2)/4.0)
+
+if __name__ == '__main__':
+	parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
+	parser.add_option("-d", "--decim", dest="decim", type="intx", default=160,
+		help="Set Decim [default=%default]")
+	(options, args) = parser.parse_args()
+	tb = file_rx_lrit(decim=options.decim)
+	tb.Run(True)
+