<?xml version='1.0' encoding='ASCII'?> <flow_graph> <timestamp>Thu Jul 5 16:28:45 2012</timestamp> <block> <key>options</key> <param> <key>id</key> <value>mpsk_demod</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>title</key> <value>MPSK Demod Demo</value> </param> <param> <key>author</key> <value></value> </param> <param> <key>description</key> <value></value> </param> <param> <key>window_size</key> <value>1280, 1024</value> </param> <param> <key>generate_options</key> <value>wx_gui</value> </param> <param> <key>category</key> <value>Custom</value> </param> <param> <key>run_options</key> <value>prompt</value> </param> <param> <key>run</key> <value>True</value> </param> <param> <key>max_nouts</key> <value>0</value> </param> <param> <key>realtime_scheduling</key> <value></value> </param> <param> <key>_coordinate</key> <value>(10, 10)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable</key> <param> <key>id</key> <value>samp_rate</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>value</key> <value>32000</value> </param> <param> <key>_coordinate</key> <value>(10, 170)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable</key> <param> <key>id</key> <value>samps_per_sym</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>value</key> <value>4</value> </param> <param> <key>_coordinate</key> <value>(7, 89)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>noise</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Noise</value> </param> <param> <key>value</key> <value>.1</value> </param> <param> <key>min</key> <value>0</value> </param> <param> <key>max</key> <value>1</value> </param> <param> <key>num_steps</key> <value>100</value> </param> <param> <key>style</key> <value>wx.SL_HORIZONTAL</value> </param> <param> <key>converver</key> <value>float_converter</value> </param> <param> <key>grid_pos</key> <value></value> </param> <param> <key>notebook</key> <value></value> </param> <param> <key>_coordinate</key> <value>(259, 353)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>freq_off</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Freq Offset</value> </param> <param> <key>value</key> <value>0</value> </param> <param> <key>min</key> <value>-.5</value> </param> <param> <key>max</key> <value>.5</value> </param> <param> <key>num_steps</key> <value>1000</value> </param> <param> <key>style</key> <value>wx.SL_HORIZONTAL</value> </param> <param> <key>converver</key> <value>float_converter</value> </param> <param> <key>grid_pos</key> <value></value> </param> <param> <key>notebook</key> <value></value> </param> <param> <key>_coordinate</key> <value>(126, 345)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>notebook</key> <param> <key>id</key> <value>notebook</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>style</key> <value>wx.NB_TOP</value> </param> <param> <key>labels</key> <value>['Constellation', 'Spectrum']</value> </param> <param> <key>grid_pos</key> <value></value> </param> <param> <key>notebook</key> <value></value> </param> <param> <key>_coordinate</key> <value>(520, 407)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>wxgui_constellationsink2</key> <param> <key>id</key> <value>wxgui_constellationsink2_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>title</key> <value>Constellation Plot</value> </param> <param> <key>samp_rate</key> <value>samp_rate</value> </param> <param> <key>frame_rate</key> <value>5</value> </param> <param> <key>const_size</key> <value>2048</value> </param> <param> <key>M</key> <value>4</value> </param> <param> <key>theta</key> <value>0</value> </param> <param> <key>loop_bw</key> <value>6.28/100.0</value> </param> <param> <key>fmax</key> <value>0.06</value> </param> <param> <key>mu</key> <value>0.5</value> </param> <param> <key>gain_mu</key> <value>0.005</value> </param> <param> <key>symbol_rate</key> <value>samp_rate/4.</value> </param> <param> <key>omega_limit</key> <value>0.005</value> </param> <param> <key>win_size</key> <value></value> </param> <param> <key>grid_pos</key> <value></value> </param> <param> <key>notebook</key> <value>notebook, 0</value> </param> <param> <key>_coordinate</key> <value>(824, 212)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>wxgui_fftsink2</key> <param> <key>id</key> <value>wxgui_fftsink2_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>title</key> <value>FFT Plot</value> </param> <param> <key>samp_rate</key> <value>samp_rate</value> </param> <param> <key>baseband_freq</key> <value>0</value> </param> <param> <key>y_per_div</key> <value>10</value> </param> <param> <key>y_divs</key> <value>10</value> </param> <param> <key>ref_level</key> <value>50</value> </param> <param> <key>ref_scale</key> <value>2.0</value> </param> <param> <key>fft_size</key> <value>1024</value> </param> <param> <key>fft_rate</key> <value>30</value> </param> <param> <key>peak_hold</key> <value>False</value> </param> <param> <key>average</key> <value>False</value> </param> <param> <key>avg_alpha</key> <value>0</value> </param> <param> <key>win</key> <value>None</value> </param> <param> <key>win_size</key> <value></value> </param> <param> <key>grid_pos</key> <value></value> </param> <param> <key>notebook</key> <value>notebook, 1</value> </param> <param> <key>freqvar</key> <value>None</value> </param> <param> <key>_coordinate</key> <value>(847, 10)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_channel_model</key> <param> <key>id</key> <value>gr_channel_model_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>noise_voltage</key> <value>noise</value> </param> <param> <key>freq_offset</key> <value>freq_off</value> </param> <param> <key>epsilon</key> <value>1.0</value> </param> <param> <key>taps</key> <value>1.0</value> </param> <param> <key>seed</key> <value>42</value> </param> <param> <key>_coordinate</key> <value>(487, 282)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_throttle</key> <param> <key>id</key> <value>gr_throttle_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>samples_per_second</key> <value>samp_rate</value> </param> <param> <key>vlen</key> <value>1</value> </param> <param> <key>_coordinate</key> <value>(633, 82)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>random_source_x</key> <param> <key>id</key> <value>random_source_x_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>byte</value> </param> <param> <key>min</key> <value>0</value> </param> <param> <key>max</key> <value>2**8</value> </param> <param> <key>num_samps</key> <value>10000</value> </param> <param> <key>repeat</key> <value>True</value> </param> <param> <key>_coordinate</key> <value>(161, 119)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>digital_dxpsk_mod</key> <param> <key>id</key> <value>digital_dxpsk_mod_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>dqpsk</value> </param> <param> <key>samples_per_symbol</key> <value>samps_per_sym</value> </param> <param> <key>excess_bw</key> <value>0.35</value> </param> <param> <key>gray_coded</key> <value>True</value> </param> <param> <key>verbose</key> <value>False</value> </param> <param> <key>log</key> <value>False</value> </param> <param> <key>_coordinate</key> <value>(361, 119)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <connection> <source_block_id>gr_throttle_0</source_block_id> <sink_block_id>wxgui_constellationsink2_0</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> <connection> <source_block_id>gr_throttle_0</source_block_id> <sink_block_id>wxgui_fftsink2_0</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> <connection> <source_block_id>gr_channel_model_0</source_block_id> <sink_block_id>gr_throttle_0</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> <connection> <source_block_id>digital_dxpsk_mod_0</source_block_id> <sink_block_id>gr_channel_model_0</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> <connection> <source_block_id>random_source_x_0</source_block_id> <sink_block_id>digital_dxpsk_mod_0</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> </flow_graph>