def test_004(self):
''' Test impulse response - short form, ff '''
src_data = [1,] + 100*[0,]
expected_result = ((-0.029296875), (-0.0302734375),
(0.96875), (-0.0302734375),
(-0.029296875))
src = gr.vector_source_f(src_data)
op = gr.dc_blocker_ff(32, False)
dst = gr.vector_sink_f()
self.tb.connect (src, op, dst)
self.tb.run()
# only test samples around D-1
result_data = dst.data()[29:34]
self.assertFloatTuplesAlmostEqual (expected_result, result_data)
def test_003(self):
''' Test impulse response - long form, ff '''
src_data = [1,] + 100*[0,]
expected_result = ((-0.02072429656982422), (-0.02081298828125),
(0.979156494140625), (-0.02081298828125),
(-0.02072429656982422))
src = gr.vector_source_f(src_data)
op = gr.dc_blocker_ff(32, True)
dst = gr.vector_sink_f()
self.tb.connect (src, op, dst)
self.tb.run()
# only test samples around 2D-2
result_data = dst.data()[60:65]
self.assertFloatTuplesAlmostEqual (expected_result, result_data)
def test_004(self):
''' Test impulse response - short form, ff '''
src_data = [
1,
] + 100 * [
0,
]
expected_result = ((-0.029296875), (-0.0302734375), (0.96875),
(-0.0302734375), (-0.029296875))
src = gr.vector_source_f(src_data)
op = gr.dc_blocker_ff(32, False)
dst = gr.vector_sink_f()
self.tb.connect(src, op, dst)
self.tb.run()
# only test samples around D-1
result_data = dst.data()[29:34]
self.assertFloatTuplesAlmostEqual(expected_result, result_data)
def test_003(self):
''' Test impulse response - long form, ff '''
src_data = [
1,
] + 100 * [
0,
]
expected_result = ((-0.02072429656982422), (-0.02081298828125),
(0.979156494140625), (-0.02081298828125),
(-0.02072429656982422))
src = gr.vector_source_f(src_data)
op = gr.dc_blocker_ff(32, True)
dst = gr.vector_sink_f()
self.tb.connect(src, op, dst)
self.tb.run()
# only test samples around 2D-2
result_data = dst.data()[60:65]
self.assertFloatTuplesAlmostEqual(expected_result, result_data)
def __init__(self): grc_wxgui.top_block_gui.__init__(self, title="Top Block") ################################################## # Variables ################################################## self.threshold = threshold = 1 self.samp_rate = samp_rate = 48000 self.rf_freq = rf_freq = 136780000 self.ch0ifgain = ch0ifgain = 36 self.ch0gain = ch0gain = 24 self.audiogain = audiogain = 200 ################################################## # Blocks ################################################## _threshold_sizer = wx.BoxSizer(wx.VERTICAL) self._threshold_text_box = forms.text_box( parent=self.GetWin(), sizer=_threshold_sizer, value=self.threshold, callback=self.set_threshold, label='threshold', converter=forms.float_converter(), proportion=0, ) self._threshold_slider = forms.slider( parent=self.GetWin(), sizer=_threshold_sizer, value=self.threshold, callback=self.set_threshold, minimum=0, maximum=1000, num_steps=100, style=wx.SL_HORIZONTAL, cast=float, proportion=1, ) self.GridAdd(_threshold_sizer, 1, 1, 1, 1) _ch0ifgain_sizer = wx.BoxSizer(wx.VERTICAL) self._ch0ifgain_text_box = forms.text_box( parent=self.GetWin(), sizer=_ch0ifgain_sizer, value=self.ch0ifgain, callback=self.set_ch0ifgain, label="ch0ifgain", converter=forms.float_converter(), proportion=0, ) self._ch0ifgain_slider = forms.slider( parent=self.GetWin(), sizer=_ch0ifgain_sizer, value=self.ch0ifgain, callback=self.set_ch0ifgain, minimum=0, maximum=42, num_steps=42, style=wx.SL_HORIZONTAL, cast=float, proportion=1, ) self.GridAdd(_ch0ifgain_sizer, 4, 1, 1, 1) _ch0gain_sizer = wx.BoxSizer(wx.VERTICAL) self._ch0gain_text_box = forms.text_box( parent=self.GetWin(), sizer=_ch0gain_sizer, value=self.ch0gain, callback=self.set_ch0gain, label='ch0gain', converter=forms.float_converter(), proportion=0, ) self._ch0gain_slider = forms.slider( parent=self.GetWin(), sizer=_ch0gain_sizer, value=self.ch0gain, callback=self.set_ch0gain, minimum=-1, maximum=42, num_steps=43, style=wx.SL_HORIZONTAL, cast=float, proportion=1, ) self.GridAdd(_ch0gain_sizer, 3, 1, 1, 1) _audiogain_sizer = wx.BoxSizer(wx.VERTICAL) self._audiogain_text_box = forms.text_box( parent=self.GetWin(), sizer=_audiogain_sizer, value=self.audiogain, callback=self.set_audiogain, label='audiogain', converter=forms.float_converter(), proportion=0, ) self._audiogain_slider = forms.slider( parent=self.GetWin(), sizer=_audiogain_sizer, value=self.audiogain, callback=self.set_audiogain, minimum=0, maximum=1000, num_steps=100, style=wx.SL_HORIZONTAL, cast=float, proportion=1, ) self.GridAdd(_audiogain_sizer, 2, 1, 1, 1) self.wxgui_fftsink2_1 = fftsink2.fft_sink_f( self.GetWin(), baseband_freq=0, y_per_div=10, y_divs=10, ref_level=20, ref_scale=2.0, sample_rate=6000, fft_size=1024, fft_rate=10, average=False, avg_alpha=None, title="Audio", peak_hold=False, ) self.GridAdd(self.wxgui_fftsink2_1.win, 6, 1, 1, 1) self.wxgui_fftsink2_0 = fftsink2.fft_sink_c( self.GetWin(), baseband_freq=rf_freq, y_per_div=10, y_divs=10, ref_level=0, ref_scale=2.0, sample_rate=samp_rate*24, fft_size=1024, fft_rate=5, average=False, avg_alpha=None, title="RF", peak_hold=False, ) self.GridAdd(self.wxgui_fftsink2_0.win, 5, 1, 1, 1) self.osmosdr_source_c_0 = osmosdr.source_c( args="nchan=" + str(1) + " " + "" ) self.osmosdr_source_c_0.set_sample_rate(samp_rate*24) self.osmosdr_source_c_0.set_center_freq(rf_freq, 0) self.osmosdr_source_c_0.set_freq_corr(-32, 0) self.osmosdr_source_c_0.set_gain_mode(1, 0) self.osmosdr_source_c_0.set_gain(ch0gain, 0) self.osmosdr_source_c_0.set_if_gain(ch0ifgain, 0) self.low_pass_filter_0 = gr.fir_filter_ccf(6, firdes.low_pass( 1, samp_rate*24, 500000, 150000, firdes.WIN_HAMMING, 6.76)) self.gr_multiply_const_vxx_0 = gr.multiply_const_vff((audiogain, )) self.gr_keep_one_in_n_0 = gr.keep_one_in_n(gr.sizeof_float*1, 8) self.gr_dc_blocker_0 = gr.dc_blocker_ff(64, True) self.blks2_am_demod_cf_0 = blks2.am_demod_cf( channel_rate=samp_rate*4, audio_decim=4, audio_pass=5000, audio_stop=5500, ) self.audio_sink_0 = audio.sink(samp_rate, "", True) self.acars_decodeur_0 = acars.decodeur(threshold,"/tmp/log_jmf.txt") ################################################## # Connections ################################################## self.connect((self.osmosdr_source_c_0, 0), (self.wxgui_fftsink2_0, 0)) self.connect((self.low_pass_filter_0, 0), (self.blks2_am_demod_cf_0, 0)) self.connect((self.osmosdr_source_c_0, 0), (self.low_pass_filter_0, 0)) self.connect((self.gr_multiply_const_vxx_0, 0), (self.audio_sink_0, 0)) self.connect((self.gr_multiply_const_vxx_0, 0), (self.acars_decodeur_0, 0)) self.connect((self.blks2_am_demod_cf_0, 0), (self.gr_dc_blocker_0, 0)) self.connect((self.gr_dc_blocker_0, 0), (self.gr_multiply_const_vxx_0, 0)) self.connect((self.gr_multiply_const_vxx_0, 0), (self.gr_keep_one_in_n_0, 0)) self.connect((self.gr_keep_one_in_n_0, 0), (self.wxgui_fftsink2_1, 0))
