2 ##################################################
3 # Gnuradio Python Flow Graph
4 # Title: USRP LRIT Receiver
5 # Generated: Wed Dec 16 09:49:15 2009
6 ##################################################
8 from gnuradio import eng_notation
9 from gnuradio import gr
10 from gnuradio import window
11 from gnuradio.eng_option import eng_option
12 from gnuradio.gr import firdes
13 from gnuradio.wxgui import fftsink2
14 from gnuradio.wxgui import forms
15 from gnuradio.wxgui import scopesink2
16 from grc_gnuradio import usrp as grc_usrp
17 from grc_gnuradio import wxgui as grc_wxgui
18 from optparse import OptionParser
23 class usrp_rx_lrit(grc_wxgui.top_block_gui):
26 grc_wxgui.top_block_gui.__init__(self, title="USRP LRIT Receiver")
28 ##################################################
30 ##################################################
31 self.config_filename = config_filename = os.environ['HOME']+'/.gnuradio/config.conf'
32 self._saved_decim_config = ConfigParser.ConfigParser()
33 self._saved_decim_config.read(config_filename)
34 try: saved_decim = self._saved_decim_config.getint('usrp_rx_lrit', 'decim')
35 except: saved_decim = 160
36 self.saved_decim = saved_decim
37 self.decim = decim = saved_decim
38 self.symbol_rate = symbol_rate = 293e3
39 self._saved_offset_config = ConfigParser.ConfigParser()
40 self._saved_offset_config.read(config_filename)
41 try: saved_offset = self._saved_offset_config.getfloat('usrp_rx_lrit', 'offset')
42 except: saved_offset = 0
43 self.saved_offset = saved_offset
44 self._saved_gain_mu_config = ConfigParser.ConfigParser()
45 self._saved_gain_mu_config.read(config_filename)
46 try: saved_gain_mu = self._saved_gain_mu_config.getfloat('usrp_rx_lrit', 'gain_mu')
47 except: saved_gain_mu = 0.005
48 self.saved_gain_mu = saved_gain_mu
49 self._saved_gain_config = ConfigParser.ConfigParser()
50 self._saved_gain_config.read(config_filename)
51 try: saved_gain = self._saved_gain_config.getfloat('usrp_rx_lrit', 'gain')
52 except: saved_gain = 33
53 self.saved_gain = saved_gain
54 self._saved_freq_config = ConfigParser.ConfigParser()
55 self._saved_freq_config.read(config_filename)
56 try: saved_freq = self._saved_freq_config.getfloat('usrp_rx_lrit', 'freq')
57 except: saved_freq = 1691e6
58 self.saved_freq = saved_freq
59 self._saved_costas_alpha_config = ConfigParser.ConfigParser()
60 self._saved_costas_alpha_config.read(config_filename)
61 try: saved_costas_alpha = self._saved_costas_alpha_config.getfloat('usrp_rx_lrit', 'costas_alpha')
62 except: saved_costas_alpha = 0.005
63 self.saved_costas_alpha = saved_costas_alpha
64 self.sample_rate = sample_rate = 64e6/decim
65 self.sps = sps = sample_rate/symbol_rate
66 self._side_config = ConfigParser.ConfigParser()
67 self._side_config.read(config_filename)
68 try: side = self._side_config.get('usrp_rx_lrit', 'side')
71 self.offset = offset = saved_offset
72 self.gain_mu = gain_mu = saved_gain_mu
73 self.gain = gain = saved_gain
74 self.freq = freq = saved_freq
75 self.costas_alpha = costas_alpha = saved_costas_alpha
77 ##################################################
79 ##################################################
80 self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
81 self.displays.AddPage(grc_wxgui.Panel(self.displays), "USRP RX")
82 self.displays.AddPage(grc_wxgui.Panel(self.displays), "RRC")
83 self.displays.AddPage(grc_wxgui.Panel(self.displays), "PLL")
84 self.displays.AddPage(grc_wxgui.Panel(self.displays), "Const")
85 self.GridAdd(self.displays, 2, 0, 1, 3)
87 ##################################################
89 ##################################################
90 self._decim_text_box = forms.text_box(
93 callback=self.set_decim,
95 converter=forms.int_converter(),
97 self.GridAdd(self._decim_text_box, 0, 2, 1, 1)
98 _offset_sizer = wx.BoxSizer(wx.VERTICAL)
99 self._offset_text_box = forms.text_box(
100 parent=self.GetWin(),
103 callback=self.set_offset,
105 converter=forms.float_converter(),
108 self._offset_slider = forms.slider(
109 parent=self.GetWin(),
112 callback=self.set_offset,
116 style=wx.SL_HORIZONTAL,
120 self.GridAdd(_offset_sizer, 0, 1, 1, 1)
121 _gain_mu_sizer = wx.BoxSizer(wx.VERTICAL)
122 self._gain_mu_text_box = forms.text_box(
123 parent=self.GetWin(),
124 sizer=_gain_mu_sizer,
126 callback=self.set_gain_mu,
128 converter=forms.float_converter(),
131 self._gain_mu_slider = forms.slider(
132 parent=self.GetWin(),
133 sizer=_gain_mu_sizer,
135 callback=self.set_gain_mu,
139 style=wx.SL_HORIZONTAL,
143 self.GridAdd(_gain_mu_sizer, 1, 2, 1, 1)
144 _gain_sizer = wx.BoxSizer(wx.VERTICAL)
145 self._gain_text_box = forms.text_box(
146 parent=self.GetWin(),
149 callback=self.set_gain,
151 converter=forms.float_converter(),
154 self._gain_slider = forms.slider(
155 parent=self.GetWin(),
158 callback=self.set_gain,
162 style=wx.SL_HORIZONTAL,
166 self.GridAdd(_gain_sizer, 1, 0, 1, 1)
167 self._freq_text_box = forms.text_box(
168 parent=self.GetWin(),
170 callback=self.set_freq,
172 converter=forms.float_converter(),
174 self.GridAdd(self._freq_text_box, 0, 0, 1, 1)
175 _costas_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
176 self._costas_alpha_text_box = forms.text_box(
177 parent=self.GetWin(),
178 sizer=_costas_alpha_sizer,
179 value=self.costas_alpha,
180 callback=self.set_costas_alpha,
181 label="Costas Alpha",
182 converter=forms.float_converter(),
185 self._costas_alpha_slider = forms.slider(
186 parent=self.GetWin(),
187 sizer=_costas_alpha_sizer,
188 value=self.costas_alpha,
189 callback=self.set_costas_alpha,
193 style=wx.SL_HORIZONTAL,
197 self.GridAdd(_costas_alpha_sizer, 1, 1, 1, 1)
199 ##################################################
201 ##################################################
202 self.costas = gr.costas_loop_cc(costas_alpha, (costas_alpha**2.0)/4.0, 50e-6*sps, -50e-6*sps, 2)
203 self.costas_spectrum = fftsink2.fft_sink_c(
204 self.displays.GetPage(2).GetWin(),
205 baseband_freq=freq+offset,
210 sample_rate=sample_rate,
215 title="PLL Spectrum",
218 self.displays.GetPage(2).GridAdd(self.costas_spectrum.win, 0, 0, 1, 1)
219 self.costas_waveform = scopesink2.scope_sink_c(
220 self.displays.GetPage(2).GetWin(),
221 title="PLL Waveform",
222 sample_rate=sample_rate,
225 t_scale=20.0/sample_rate,
230 self.displays.GetPage(2).GridAdd(self.costas_waveform.win, 1, 0, 1, 1)
231 self.gr_agc_xx_0 = gr.agc_cc(1e-6, 1.0, 1.0/32767.0, 1.0)
232 self.mm_const = scopesink2.scope_sink_c(
233 self.displays.GetPage(3).GetWin(),
234 title="Constellation",
235 sample_rate=symbol_rate,
238 t_scale=20.0/symbol_rate,
243 self.displays.GetPage(3).GridAdd(self.mm_const.win, 1, 0, 1, 1)
244 self.mm_spectrum = fftsink2.fft_sink_c(
245 self.displays.GetPage(3).GetWin(),
251 sample_rate=symbol_rate,
256 title="Bit Sync Spectrum",
259 self.displays.GetPage(3).GridAdd(self.mm_spectrum.win, 0, 0, 1, 1)
260 self.mm_sync = gr.clock_recovery_mm_cc(sps, (gain_mu**2)/4.0, 0.5, gain_mu, 50e-6*sps)
261 self.root_raised_cosine_filter_0 = gr.fir_filter_ccf(1, firdes.root_raised_cosine(
262 1, sample_rate, symbol_rate, 0.25, int(11*sample_rate/symbol_rate)))
263 self.rrc_spectrum = fftsink2.fft_sink_c(
264 self.displays.GetPage(1).GetWin(),
265 baseband_freq=freq+offset,
270 sample_rate=sample_rate,
275 title="RRC Spectrum",
278 self.displays.GetPage(1).GridAdd(self.rrc_spectrum.win, 0, 0, 1, 1)
279 self.rrc_waveform = scopesink2.scope_sink_c(
280 self.displays.GetPage(1).GetWin(),
281 title="RRC Waveform",
282 sample_rate=sample_rate,
285 t_scale=20.0/sample_rate,
290 self.displays.GetPage(1).GridAdd(self.rrc_waveform.win, 1, 0, 1, 1)
291 self.rx_spectrum = fftsink2.fft_sink_c(
292 self.displays.GetPage(0).GetWin(),
298 sample_rate=sample_rate,
306 self.displays.GetPage(0).GridAdd(self.rx_spectrum.win, 0, 0, 1, 1)
307 self.rx_waveform = scopesink2.scope_sink_c(
308 self.displays.GetPage(0).GetWin(),
310 sample_rate=sample_rate,
313 t_scale=20.0/sample_rate,
318 self.displays.GetPage(0).GridAdd(self.rx_waveform.win, 1, 0, 1, 1)
319 self.usrp_simple_source_x_0 = grc_usrp.simple_source_c(which=0, side=side, rx_ant="RXA")
320 self.usrp_simple_source_x_0.set_decim_rate(decim)
321 self.usrp_simple_source_x_0.set_frequency(freq+offset, verbose=True)
322 self.usrp_simple_source_x_0.set_gain(gain)
324 ##################################################
326 ##################################################
327 self.connect((self.gr_agc_xx_0, 0), (self.root_raised_cosine_filter_0, 0))
328 self.connect((self.usrp_simple_source_x_0, 0), (self.gr_agc_xx_0, 0))
329 self.connect((self.usrp_simple_source_x_0, 0), (self.rx_spectrum, 0))
330 self.connect((self.usrp_simple_source_x_0, 0), (self.rx_waveform, 0))
331 self.connect((self.root_raised_cosine_filter_0, 0), (self.rrc_waveform, 0))
332 self.connect((self.root_raised_cosine_filter_0, 0), (self.rrc_spectrum, 0))
333 self.connect((self.root_raised_cosine_filter_0, 0), (self.costas, 0))
334 self.connect((self.costas, 0), (self.costas_spectrum, 0))
335 self.connect((self.costas, 0), (self.costas_waveform, 0))
336 self.connect((self.costas, 0), (self.mm_sync, 0))
337 self.connect((self.mm_sync, 0), (self.mm_spectrum, 0))
338 self.connect((self.mm_sync, 0), (self.mm_const, 0))
340 def set_config_filename(self, config_filename):
341 self.config_filename = config_filename
342 self._saved_freq_config = ConfigParser.ConfigParser()
343 self._saved_freq_config.read(self.config_filename)
344 if not self._saved_freq_config.has_section('usrp_rx_lrit'):
345 self._saved_freq_config.add_section('usrp_rx_lrit')
346 self._saved_freq_config.set('usrp_rx_lrit', 'freq', str(self.freq))
347 self._saved_freq_config.write(open(self.config_filename, 'w'))
348 self._saved_offset_config = ConfigParser.ConfigParser()
349 self._saved_offset_config.read(self.config_filename)
350 if not self._saved_offset_config.has_section('usrp_rx_lrit'):
351 self._saved_offset_config.add_section('usrp_rx_lrit')
352 self._saved_offset_config.set('usrp_rx_lrit', 'offset', str(self.offset))
353 self._saved_offset_config.write(open(self.config_filename, 'w'))
354 self._saved_gain_config = ConfigParser.ConfigParser()
355 self._saved_gain_config.read(self.config_filename)
356 if not self._saved_gain_config.has_section('usrp_rx_lrit'):
357 self._saved_gain_config.add_section('usrp_rx_lrit')
358 self._saved_gain_config.set('usrp_rx_lrit', 'gain', str(self.gain))
359 self._saved_gain_config.write(open(self.config_filename, 'w'))
360 self._saved_decim_config = ConfigParser.ConfigParser()
361 self._saved_decim_config.read(self.config_filename)
362 if not self._saved_decim_config.has_section('usrp_rx_lrit'):
363 self._saved_decim_config.add_section('usrp_rx_lrit')
364 self._saved_decim_config.set('usrp_rx_lrit', 'decim', str(self.decim))
365 self._saved_decim_config.write(open(self.config_filename, 'w'))
366 self._saved_costas_alpha_config = ConfigParser.ConfigParser()
367 self._saved_costas_alpha_config.read(self.config_filename)
368 if not self._saved_costas_alpha_config.has_section('usrp_rx_lrit'):
369 self._saved_costas_alpha_config.add_section('usrp_rx_lrit')
370 self._saved_costas_alpha_config.set('usrp_rx_lrit', 'costas_alpha', str(self.costas_alpha))
371 self._saved_costas_alpha_config.write(open(self.config_filename, 'w'))
372 self._saved_gain_mu_config = ConfigParser.ConfigParser()
373 self._saved_gain_mu_config.read(self.config_filename)
374 if not self._saved_gain_mu_config.has_section('usrp_rx_lrit'):
375 self._saved_gain_mu_config.add_section('usrp_rx_lrit')
376 self._saved_gain_mu_config.set('usrp_rx_lrit', 'gain_mu', str(self.gain_mu))
377 self._saved_gain_mu_config.write(open(self.config_filename, 'w'))
378 self._side_config = ConfigParser.ConfigParser()
379 self._side_config.read(self.config_filename)
380 if not self._side_config.has_section('usrp_rx_lrit'):
381 self._side_config.add_section('usrp_rx_lrit')
382 self._side_config.set('usrp_rx_lrit', 'side', str(self.side))
383 self._side_config.write(open(self.config_filename, 'w'))
385 def set_saved_decim(self, saved_decim):
386 self.saved_decim = saved_decim
387 self.set_decim(self.saved_decim)
389 def set_decim(self, decim):
391 self.set_sample_rate(64e6/self.decim)
392 self._saved_decim_config = ConfigParser.ConfigParser()
393 self._saved_decim_config.read(self.config_filename)
394 if not self._saved_decim_config.has_section('usrp_rx_lrit'):
395 self._saved_decim_config.add_section('usrp_rx_lrit')
396 self._saved_decim_config.set('usrp_rx_lrit', 'decim', str(self.decim))
397 self._saved_decim_config.write(open(self.config_filename, 'w'))
398 self._decim_text_box.set_value(self.decim)
399 self.usrp_simple_source_x_0.set_decim_rate(self.decim)
401 def set_symbol_rate(self, symbol_rate):
402 self.symbol_rate = symbol_rate
403 self.set_sps(self.sample_rate/self.symbol_rate)
404 self.root_raised_cosine_filter_0.set_taps(firdes.root_raised_cosine(1, self.sample_rate, self.symbol_rate, 0.25, int(11*self.sample_rate/self.symbol_rate)))
405 self.mm_spectrum.set_sample_rate(self.symbol_rate)
406 self.mm_const.set_sample_rate(self.symbol_rate)
408 def set_saved_offset(self, saved_offset):
409 self.saved_offset = saved_offset
410 self.set_offset(self.saved_offset)
412 def set_saved_gain_mu(self, saved_gain_mu):
413 self.saved_gain_mu = saved_gain_mu
414 self.set_gain_mu(self.saved_gain_mu)
416 def set_saved_gain(self, saved_gain):
417 self.saved_gain = saved_gain
418 self.set_gain(self.saved_gain)
420 def set_saved_freq(self, saved_freq):
421 self.saved_freq = saved_freq
422 self.set_freq(self.saved_freq)
424 def set_saved_costas_alpha(self, saved_costas_alpha):
425 self.saved_costas_alpha = saved_costas_alpha
426 self.set_costas_alpha(self.saved_costas_alpha)
428 def set_sample_rate(self, sample_rate):
429 self.sample_rate = sample_rate
430 self.set_sps(self.sample_rate/self.symbol_rate)
431 self.rx_waveform.set_sample_rate(self.sample_rate)
432 self.rx_spectrum.set_sample_rate(self.sample_rate)
433 self.root_raised_cosine_filter_0.set_taps(firdes.root_raised_cosine(1, self.sample_rate, self.symbol_rate, 0.25, int(11*self.sample_rate/self.symbol_rate)))
434 self.rrc_waveform.set_sample_rate(self.sample_rate)
435 self.rrc_spectrum.set_sample_rate(self.sample_rate)
436 self.costas_spectrum.set_sample_rate(self.sample_rate)
437 self.costas_waveform.set_sample_rate(self.sample_rate)
439 def set_sps(self, sps):
441 self.mm_sync.set_omega(self.sps)
443 def set_side(self, side):
445 self._side_config = ConfigParser.ConfigParser()
446 self._side_config.read(self.config_filename)
447 if not self._side_config.has_section('usrp_rx_lrit'):
448 self._side_config.add_section('usrp_rx_lrit')
449 self._side_config.set('usrp_rx_lrit', 'side', str(self.side))
450 self._side_config.write(open(self.config_filename, 'w'))
452 def set_offset(self, offset):
454 self._saved_offset_config = ConfigParser.ConfigParser()
455 self._saved_offset_config.read(self.config_filename)
456 if not self._saved_offset_config.has_section('usrp_rx_lrit'):
457 self._saved_offset_config.add_section('usrp_rx_lrit')
458 self._saved_offset_config.set('usrp_rx_lrit', 'offset', str(self.offset))
459 self._saved_offset_config.write(open(self.config_filename, 'w'))
460 self._offset_slider.set_value(self.offset)
461 self._offset_text_box.set_value(self.offset)
462 self.rrc_spectrum.set_baseband_freq(self.freq+self.offset)
463 self.costas_spectrum.set_baseband_freq(self.freq+self.offset)
464 self.usrp_simple_source_x_0.set_frequency(self.freq+self.offset)
466 def set_gain_mu(self, gain_mu):
467 self.gain_mu = gain_mu
468 self._gain_mu_slider.set_value(self.gain_mu)
469 self._gain_mu_text_box.set_value(self.gain_mu)
470 self._saved_gain_mu_config = ConfigParser.ConfigParser()
471 self._saved_gain_mu_config.read(self.config_filename)
472 if not self._saved_gain_mu_config.has_section('usrp_rx_lrit'):
473 self._saved_gain_mu_config.add_section('usrp_rx_lrit')
474 self._saved_gain_mu_config.set('usrp_rx_lrit', 'gain_mu', str(self.gain_mu))
475 self._saved_gain_mu_config.write(open(self.config_filename, 'w'))
476 self.mm_sync.set_gain_omega((self.gain_mu**2)/4.0)
477 self.mm_sync.set_gain_mu(self.gain_mu)
479 def set_gain(self, gain):
481 self._saved_gain_config = ConfigParser.ConfigParser()
482 self._saved_gain_config.read(self.config_filename)
483 if not self._saved_gain_config.has_section('usrp_rx_lrit'):
484 self._saved_gain_config.add_section('usrp_rx_lrit')
485 self._saved_gain_config.set('usrp_rx_lrit', 'gain', str(self.gain))
486 self._saved_gain_config.write(open(self.config_filename, 'w'))
487 self._gain_slider.set_value(self.gain)
488 self._gain_text_box.set_value(self.gain)
489 self.usrp_simple_source_x_0.set_gain(self.gain)
491 def set_freq(self, freq):
493 self._freq_text_box.set_value(self.freq)
494 self._saved_freq_config = ConfigParser.ConfigParser()
495 self._saved_freq_config.read(self.config_filename)
496 if not self._saved_freq_config.has_section('usrp_rx_lrit'):
497 self._saved_freq_config.add_section('usrp_rx_lrit')
498 self._saved_freq_config.set('usrp_rx_lrit', 'freq', str(self.freq))
499 self._saved_freq_config.write(open(self.config_filename, 'w'))
500 self.rx_spectrum.set_baseband_freq(self.freq)
501 self.rrc_spectrum.set_baseband_freq(self.freq+self.offset)
502 self.costas_spectrum.set_baseband_freq(self.freq+self.offset)
503 self.usrp_simple_source_x_0.set_frequency(self.freq+self.offset)
505 def set_costas_alpha(self, costas_alpha):
506 self.costas_alpha = costas_alpha
507 self._costas_alpha_slider.set_value(self.costas_alpha)
508 self._costas_alpha_text_box.set_value(self.costas_alpha)
509 self._saved_costas_alpha_config = ConfigParser.ConfigParser()
510 self._saved_costas_alpha_config.read(self.config_filename)
511 if not self._saved_costas_alpha_config.has_section('usrp_rx_lrit'):
512 self._saved_costas_alpha_config.add_section('usrp_rx_lrit')
513 self._saved_costas_alpha_config.set('usrp_rx_lrit', 'costas_alpha', str(self.costas_alpha))
514 self._saved_costas_alpha_config.write(open(self.config_filename, 'w'))
515 self.costas.set_alpha(self.costas_alpha)
516 self.costas.set_beta((self.costas_alpha**2.0)/4.0)
518 if __name__ == '__main__':
519 parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
520 (options, args) = parser.parse_args()