Wed Dec 16 09:14:28 2009 options id file_rx_lrit _enabled True title LRIT Receiver (from capture file) author description window_size 4095, 4095 generate_options wx_gui category Custom run_options prompt run True realtime_scheduling _coordinate (10, 10) _rotation 0 variable id symbol_rate _enabled True value 293e3 _coordinate (347, 10) _rotation 0 variable id sps _enabled True value sample_rate/symbol_rate _coordinate (445, 10) _rotation 0 variable id config_filename _enabled True value os.environ['HOME']+'/.gnuradio/config.conf' _coordinate (11, 136) _rotation 0 import id import_0 _enabled True import import os _coordinate (10, 82) _rotation 0 variable id sample_rate _enabled True value 64e6/decim _coordinate (249, 10) _rotation 0 wxgui_fftsink2 id rx_spectrum _enabled True type complex title Baseband Spectrum samp_rate sample_rate baseband_freq 0 y_per_div 5 y_divs 10 ref_level 50 ref_scale 2.0 fft_size 1024 fft_rate 15 peak_hold False average True avg_alpha 0 win None win_size grid_pos 0, 0, 1, 1 notebook displays, 0 _coordinate (267, 556) _rotation 0 gr_file_source id gr_file_source_0 _enabled True file lrit.dat type complex repeat False vlen 1 _coordinate (79, 729) _rotation 0 gr_throttle id gr_throttle_0 _enabled True type complex samples_per_second sample_rate vlen 1 _coordinate (60, 824) _rotation 0 wxgui_scopesink2 id rx_waveform _enabled True type complex title Baseband Waveform samp_rate sample_rate v_scale 0 v_offset 0 t_scale 20.0/sample_rate ac_couple False xy_mode False num_inputs 1 win_size grid_pos 1, 0, 1, 1 notebook displays, 0 _coordinate (267, 915) _rotation 0 variable_slider id gain_mu _enabled True label Gain Mu value saved_gain_mu min 0 max 0.5 num_steps 100 style wx.SL_HORIZONTAL converver float_converter grid_pos 0, 1, 1, 1 notebook _coordinate (478, 91) _rotation 0 wxgui_fftsink2 id costas_spectrum _enabled True type complex title PLL Spectrum samp_rate sample_rate baseband_freq 0 y_per_div 10 y_divs 10 ref_level -15 ref_scale 2.0 fft_size 1024 fft_rate 30 peak_hold False average True avg_alpha 0 win window.hanning win_size grid_pos 0, 0, 1, 1 notebook displays, 2 _coordinate (916, 535) _rotation 0 gr_clock_recovery_mm_xx id gr_clock_recovery_mm_xx_0 _enabled True type complex omega sps gain_omega (gain_mu**2)/4.0 mu 0.5 gain_mu gain_mu omega_relative_limit 50e-6 _coordinate (915, 789) _rotation 0 wxgui_fftsink2 id costas_spectrum_0 _enabled True type complex title Bit Sync Spectrum samp_rate symbol_rate baseband_freq 0 y_per_div 10 y_divs 10 ref_level -15 ref_scale 2.0 fft_size 1024 fft_rate 30 peak_hold False average True avg_alpha 0 win window.hanning win_size grid_pos 0, 0, 1, 1 notebook displays, 3 _coordinate (1160, 539) _rotation 0 notebook id displays _enabled True style wx.NB_TOP labels ['USRP RX', 'RRC Filter', 'PLL', 'MM'] grid_pos 1, 0, 1, 2 notebook _coordinate (15, 206) _rotation 0 variable_slider id costas_alpha _enabled True label Costas Alpha value saved_costas_alpha min 0 max 0.5 num_steps 100 style wx.SL_HORIZONTAL converver float_converter grid_pos 0, 0, 1, 1 notebook _coordinate (338, 90) _rotation 0 wxgui_scopesink2 id costas_waveform _enabled True type complex title PLL Waveform samp_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 win_size grid_pos 1, 0, 1, 1 notebook displays, 2 _coordinate (915, 928) _rotation 0 wxgui_scopesink2 id mm_waveform _enabled True type complex title Constellation samp_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 win_size grid_pos 1, 0, 1, 1 notebook displays, 3 _coordinate (1160, 922) _rotation 0 variable_config id saved_costas_alpha _enabled True value 0.2 type real config_file config_filename section 'usrp_rx_lrit' option 'costas_alpha' writeback costas_alpha _coordinate (251, 244) _rotation 0 variable_config id saved_gain_mu _enabled True value 0.2 type real config_file config_filename section 'usrp_rx_lrit' option 'gain_mu' writeback gain_mu _coordinate (411, 242) _rotation 0 parameter id decim _enabled True label Decim value 160 type intx short_id d _coordinate (249, 90) _rotation 0 wxgui_fftsink2 id rrc_spectrum _enabled True type complex title RRC Spectrum samp_rate sample_rate baseband_freq 0 y_per_div 10 y_divs 10 ref_level -15 ref_scale 2.0 fft_size 1024 fft_rate 30 peak_hold False average True avg_alpha 0 win window.hanning win_size grid_pos 0, 0, 1, 1 notebook displays, 1 _coordinate (705, 534) _rotation 0 gr_agc_xx id gr_agc_xx_0 _enabled True type complex rate 1e-6 reference 1.0 gain 1.0/32767.0 max_gain 1.0 _coordinate (273, 800) _rotation 0 wxgui_scopesink2 id rx_waveform_0 _enabled True type complex title RRC Waveform samp_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 win_size grid_pos 1, 0, 1, 1 notebook displays, 1 _coordinate (706, 927) _rotation 0 gr_costas_loop_cc id costas _enabled True alpha costas_alpha beta (costas_alpha**2)/4.0 max_freq 50e-6*sps min_freq -50e-6*sps order 2 _coordinate (706, 792) _rotation 0 root_raised_cosine_filter id rrc _enabled True type fir_filter_ccf decim 1 interp 1 gain 1 samp_rate sample_rate sym_rate symbol_rate alpha 0.25 ntaps int(11*sample_rate/symbol_rate) _coordinate (448, 784) _rotation 0 rrc rx_waveform_0 0 0 rrc rrc_spectrum 0 0 gr_agc_xx_0 rrc 0 0 gr_throttle_0 rx_waveform 0 0 gr_throttle_0 rx_spectrum 0 0 gr_throttle_0 gr_agc_xx_0 0 0 gr_file_source_0 gr_throttle_0 0 0 rrc costas 0 0 costas costas_spectrum 0 0 costas costas_waveform 0 0 costas gr_clock_recovery_mm_xx_0 0 0 gr_clock_recovery_mm_xx_0 costas_spectrum_0 0 0 gr_clock_recovery_mm_xx_0 mm_waveform 0 0