Fix METEOR flowgraph
* Set the METEOR flowgraph in non-X mode * Reduce the stored bandwidth by a factor of 2. Captures have shown that twice the bandwidth of the METEOR is enough for RRC and clock recovery
This commit is contained in:
Manolis Surligas
parent
08522517c2
commit
22cb5e1844
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@ -38,7 +38,7 @@
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</param>
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<param>
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<key>generate_options</key>
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<value>qt_gui</value>
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<value>no_gui</value>
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</param>
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<param>
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<key>hier_block_src_path</key>
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@ -105,34 +105,7 @@
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</param>
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<param>
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<key>value</key>
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<value>4*80000.0</value>
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</param>
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</block>
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<block>
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<key>variable</key>
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<param>
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<key>comment</key>
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<value></value>
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</param>
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<param>
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<key>_enabled</key>
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<value>True</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(239, 75)</value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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</param>
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<param>
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<key>id</key>
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<value>samp_rate_lcm</value>
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</param>
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<param>
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<key>value</key>
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<value>satnogs.lcm(filter_rate, int(samp_rate_rx / int(samp_rate_rx/filter_rate)))</value>
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<value>2*80000.0</value>
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</param>
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</block>
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<block>
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@ -2193,305 +2166,6 @@ we shift the LO a little further</value>
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<value>0</value>
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</param>
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</block>
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<block>
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<key>qtgui_freq_sink_x</key>
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<param>
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<key>autoscale</key>
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<value>False</value>
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</param>
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<param>
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<key>average</key>
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<value>1.0</value>
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</param>
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<param>
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<key>axislabels</key>
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<value>True</value>
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</param>
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<param>
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<key>bw</key>
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<value>filter_rate</value>
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</param>
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<param>
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<key>alias</key>
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<value></value>
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</param>
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<param>
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<key>fc</key>
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<value>0</value>
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</param>
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<param>
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<key>comment</key>
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<value></value>
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</param>
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<param>
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<key>ctrlpanel</key>
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<value>False</value>
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</param>
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<param>
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<key>affinity</key>
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<value></value>
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</param>
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<param>
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<key>_enabled</key>
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<value>True</value>
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</param>
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<param>
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<key>fftsize</key>
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<value>1024</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(1037, 590)</value>
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</param>
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<param>
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<key>gui_hint</key>
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<value></value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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</param>
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<param>
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<key>grid</key>
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<value>False</value>
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</param>
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<param>
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<key>id</key>
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<value>qtgui_freq_sink_x_0</value>
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</param>
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<param>
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<key>legend</key>
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<value>True</value>
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</param>
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<param>
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<key>alpha1</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color1</key>
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<value>"blue"</value>
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</param>
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<param>
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<key>label1</key>
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<value></value>
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</param>
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<param>
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<key>width1</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha10</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color10</key>
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<value>"dark blue"</value>
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</param>
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<param>
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<key>label10</key>
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<value></value>
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</param>
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<param>
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<key>width10</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha2</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color2</key>
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<value>"red"</value>
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</param>
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<param>
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<key>label2</key>
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<value></value>
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</param>
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<param>
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<key>width2</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha3</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color3</key>
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<value>"green"</value>
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</param>
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<param>
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<key>label3</key>
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<value></value>
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</param>
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<param>
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<key>width3</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha4</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color4</key>
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<value>"black"</value>
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</param>
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<param>
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<key>label4</key>
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<value></value>
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</param>
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<param>
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<key>width4</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha5</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color5</key>
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<value>"cyan"</value>
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</param>
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<param>
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<key>label5</key>
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<value></value>
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</param>
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<param>
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<key>width5</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha6</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color6</key>
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<value>"magenta"</value>
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</param>
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<param>
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<key>label6</key>
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<value></value>
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</param>
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<param>
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<key>width6</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha7</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color7</key>
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<value>"yellow"</value>
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</param>
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<param>
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<key>label7</key>
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<value></value>
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</param>
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<param>
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<key>width7</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha8</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color8</key>
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<value>"dark red"</value>
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</param>
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<param>
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<key>label8</key>
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<value></value>
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</param>
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<param>
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<key>width8</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha9</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color9</key>
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<value>"dark green"</value>
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</param>
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<param>
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<key>label9</key>
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<value></value>
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</param>
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<param>
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<key>width9</key>
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<value>1</value>
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</param>
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<param>
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<key>maxoutbuf</key>
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<value>0</value>
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</param>
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<param>
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<key>minoutbuf</key>
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<value>0</value>
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</param>
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<param>
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<key>name</key>
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<value>""</value>
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</param>
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<param>
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<key>nconnections</key>
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<value>1</value>
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</param>
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<param>
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<key>showports</key>
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<value>True</value>
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</param>
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<param>
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<key>freqhalf</key>
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<value>True</value>
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</param>
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<param>
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<key>tr_chan</key>
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<value>0</value>
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</param>
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<param>
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<key>tr_level</key>
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<value>0.0</value>
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</param>
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<param>
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<key>tr_mode</key>
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<value>qtgui.TRIG_MODE_FREE</value>
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</param>
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<param>
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<key>tr_tag</key>
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<value>""</value>
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</param>
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<param>
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<key>type</key>
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<value>complex</value>
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</param>
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<param>
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<key>update_time</key>
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<value>0.10</value>
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</param>
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<param>
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<key>wintype</key>
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<value>firdes.WIN_BLACKMAN_hARRIS</value>
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</param>
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<param>
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<key>label</key>
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<value>Relative Gain</value>
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</param>
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<param>
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<key>ymax</key>
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<value>10</value>
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</param>
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<param>
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<key>ymin</key>
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<value>-140</value>
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</param>
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<param>
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<key>units</key>
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<value>dB</value>
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</param>
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</block>
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<block>
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<key>parameter</key>
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<param>
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@ -2927,12 +2601,6 @@ we shift the LO a little further</value>
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<source_key>0</source_key>
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<sink_key>0</sink_key>
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</connection>
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<connection>
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<source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
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<sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
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<source_key>0</source_key>
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<sink_key>0</sink_key>
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</connection>
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<connection>
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<source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
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<sink_block_id>satnogs_iq_sink_0</sink_block_id>
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@ -5,61 +5,25 @@
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# Title: METEOR Demodulation
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# Author: Manolis Surligas (surligas@gmail.com)
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# Description: A METEOR weather satellite decoder
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# Generated: Mon Jan 8 19:06:02 2018
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# Generated: Thu Jan 11 02:21:20 2018
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##################################################
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if __name__ == '__main__':
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import ctypes
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import sys
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if sys.platform.startswith('linux'):
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try:
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x11 = ctypes.cdll.LoadLibrary('libX11.so')
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x11.XInitThreads()
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except:
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print "Warning: failed to XInitThreads()"
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from PyQt4 import Qt
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from gnuradio import eng_notation
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from gnuradio import filter
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from gnuradio import gr
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from gnuradio import qtgui
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from gnuradio.eng_option import eng_option
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from gnuradio.filter import firdes
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from gnuradio.filter import pfb
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from optparse import OptionParser
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import osmosdr
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import satnogs
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import sip
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import sys
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import time
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from gnuradio import qtgui
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class satnogs_meteor_decoder(gr.top_block, Qt.QWidget):
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class satnogs_meteor_decoder(gr.top_block):
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def __init__(self, antenna=satnogs.not_set_antenna, bb_gain=satnogs.not_set_rx_bb_gain, decoded_data_file_path='/tmp/.satnogs/data/data', dev_args=satnogs.not_set_dev_args, doppler_correction_per_sec=20, enable_iq_dump=0, file_path='test.ogg', if_gain=satnogs.not_set_rx_if_gain, iq_file_path='/tmp/iq.dat', lo_offset=100e3, ppm=0, rf_gain=satnogs.not_set_rx_rf_gain, rigctl_port=4532, rx_freq=100e6, rx_sdr_device='usrpb200', waterfall_file_path='/tmp/waterfall.dat'):
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gr.top_block.__init__(self, "METEOR Demodulation")
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Qt.QWidget.__init__(self)
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self.setWindowTitle("METEOR Demodulation")
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qtgui.util.check_set_qss()
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try:
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self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
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except:
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pass
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self.top_scroll_layout = Qt.QVBoxLayout()
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self.setLayout(self.top_scroll_layout)
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self.top_scroll = Qt.QScrollArea()
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self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
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self.top_scroll_layout.addWidget(self.top_scroll)
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self.top_scroll.setWidgetResizable(True)
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self.top_widget = Qt.QWidget()
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self.top_scroll.setWidget(self.top_widget)
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self.top_layout = Qt.QVBoxLayout(self.top_widget)
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self.top_grid_layout = Qt.QGridLayout()
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self.top_layout.addLayout(self.top_grid_layout)
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self.settings = Qt.QSettings("GNU Radio", "satnogs_meteor_decoder")
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self.restoreGeometry(self.settings.value("geometry").toByteArray())
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##################################################
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# Parameters
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@ -85,9 +49,8 @@ class satnogs_meteor_decoder(gr.top_block, Qt.QWidget):
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# Variables
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##################################################
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self.samp_rate_rx = samp_rate_rx = satnogs.hw_rx_settings[rx_sdr_device]['samp_rate']
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self.filter_rate = filter_rate = 4*80000.0
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self.xlate_filter_taps = xlate_filter_taps = firdes.low_pass(1, samp_rate_rx, 80000, 25000, firdes.WIN_HAMMING, 6.76)
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self.samp_rate_lcm = samp_rate_lcm = satnogs.lcm(filter_rate, int(samp_rate_rx / int(samp_rate_rx/filter_rate)))
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self.filter_rate = filter_rate = 2*80000.0
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##################################################
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# Blocks
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@ -96,49 +59,6 @@ class satnogs_meteor_decoder(gr.top_block, Qt.QWidget):
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self.satnogs_tcp_rigctl_msg_source_0 = satnogs.tcp_rigctl_msg_source("127.0.0.1", rigctl_port, False, 1000/doppler_correction_per_sec, 1500)
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self.satnogs_iq_sink_0 = satnogs.iq_sink(32767, iq_file_path, False, enable_iq_dump)
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self.satnogs_coarse_doppler_correction_cc_0 = satnogs.coarse_doppler_correction_cc(rx_freq, samp_rate_rx)
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self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
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1024, #size
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firdes.WIN_BLACKMAN_hARRIS, #wintype
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0, #fc
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filter_rate, #bw
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"", #name
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1 #number of inputs
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)
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self.qtgui_freq_sink_x_0.set_update_time(0.10)
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self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
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self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
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self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
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self.qtgui_freq_sink_x_0.enable_autoscale(False)
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self.qtgui_freq_sink_x_0.enable_grid(False)
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self.qtgui_freq_sink_x_0.set_fft_average(1.0)
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self.qtgui_freq_sink_x_0.enable_axis_labels(True)
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self.qtgui_freq_sink_x_0.enable_control_panel(False)
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if not True:
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self.qtgui_freq_sink_x_0.disable_legend()
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if "complex" == "float" or "complex" == "msg_float":
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self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
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labels = ['', '', '', '', '',
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'', '', '', '', '']
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widths = [1, 1, 1, 1, 1,
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1, 1, 1, 1, 1]
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colors = ["blue", "red", "green", "black", "cyan",
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||||
"magenta", "yellow", "dark red", "dark green", "dark blue"]
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||||
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
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1.0, 1.0, 1.0, 1.0, 1.0]
|
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for i in xrange(1):
|
||||
if len(labels[i]) == 0:
|
||||
self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
|
||||
else:
|
||||
self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
|
||||
self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
|
||||
self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
|
||||
self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
|
||||
|
||||
self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
|
||||
self.top_layout.addWidget(self._qtgui_freq_sink_x_0_win)
|
||||
self.pfb_arb_resampler_xxx_0 = pfb.arb_resampler_ccf(
|
||||
filter_rate / int(samp_rate_rx / int(samp_rate_rx/filter_rate)),
|
||||
taps=None,
|
||||
|
|
@ -166,16 +86,10 @@ class satnogs_meteor_decoder(gr.top_block, Qt.QWidget):
|
|||
self.msg_connect((self.satnogs_tcp_rigctl_msg_source_0, 'freq'), (self.satnogs_coarse_doppler_correction_cc_0, 'freq'))
|
||||
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.pfb_arb_resampler_xxx_0, 0))
|
||||
self.connect((self.osmosdr_source_0, 0), (self.satnogs_coarse_doppler_correction_cc_0, 0))
|
||||
self.connect((self.pfb_arb_resampler_xxx_0, 0), (self.qtgui_freq_sink_x_0, 0))
|
||||
self.connect((self.pfb_arb_resampler_xxx_0, 0), (self.satnogs_iq_sink_0, 0))
|
||||
self.connect((self.pfb_arb_resampler_xxx_0, 0), (self.satnogs_waterfall_sink_0, 0))
|
||||
self.connect((self.satnogs_coarse_doppler_correction_cc_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
|
||||
|
||||
def closeEvent(self, event):
|
||||
self.settings = Qt.QSettings("GNU Radio", "satnogs_meteor_decoder")
|
||||
self.settings.setValue("geometry", self.saveGeometry())
|
||||
event.accept()
|
||||
|
||||
def get_antenna(self):
|
||||
return self.antenna
|
||||
|
||||
|
|
@ -292,20 +206,10 @@ class satnogs_meteor_decoder(gr.top_block, Qt.QWidget):
|
|||
def set_samp_rate_rx(self, samp_rate_rx):
|
||||
self.samp_rate_rx = samp_rate_rx
|
||||
self.set_xlate_filter_taps(firdes.low_pass(1, self.samp_rate_rx, 80000, 25000, firdes.WIN_HAMMING, 6.76))
|
||||
self.set_samp_rate_lcm(satnogs.lcm(self.filter_rate, int(self.samp_rate_rx / int(self.samp_rate_rx/self.filter_rate))))
|
||||
self.pfb_arb_resampler_xxx_0.set_rate(self.filter_rate / int(self.samp_rate_rx / int(self.samp_rate_rx/self.filter_rate)))
|
||||
self.osmosdr_source_0.set_sample_rate(self.samp_rate_rx)
|
||||
self.osmosdr_source_0.set_bandwidth(self.samp_rate_rx, 0)
|
||||
|
||||
def get_filter_rate(self):
|
||||
return self.filter_rate
|
||||
|
||||
def set_filter_rate(self, filter_rate):
|
||||
self.filter_rate = filter_rate
|
||||
self.set_samp_rate_lcm(satnogs.lcm(self.filter_rate, int(self.samp_rate_rx / int(self.samp_rate_rx/self.filter_rate))))
|
||||
self.qtgui_freq_sink_x_0.set_frequency_range(0, self.filter_rate)
|
||||
self.pfb_arb_resampler_xxx_0.set_rate(self.filter_rate / int(self.samp_rate_rx / int(self.samp_rate_rx/self.filter_rate)))
|
||||
|
||||
def get_xlate_filter_taps(self):
|
||||
return self.xlate_filter_taps
|
||||
|
||||
|
|
@ -313,11 +217,12 @@ class satnogs_meteor_decoder(gr.top_block, Qt.QWidget):
|
|||
self.xlate_filter_taps = xlate_filter_taps
|
||||
self.freq_xlating_fir_filter_xxx_0.set_taps((self.xlate_filter_taps))
|
||||
|
||||
def get_samp_rate_lcm(self):
|
||||
return self.samp_rate_lcm
|
||||
def get_filter_rate(self):
|
||||
return self.filter_rate
|
||||
|
||||
def set_samp_rate_lcm(self, samp_rate_lcm):
|
||||
self.samp_rate_lcm = samp_rate_lcm
|
||||
def set_filter_rate(self, filter_rate):
|
||||
self.filter_rate = filter_rate
|
||||
self.pfb_arb_resampler_xxx_0.set_rate(self.filter_rate / int(self.samp_rate_rx / int(self.samp_rate_rx/self.filter_rate)))
|
||||
|
||||
|
||||
def argument_parser():
|
||||
|
|
@ -378,21 +283,9 @@ def main(top_block_cls=satnogs_meteor_decoder, options=None):
|
|||
if options is None:
|
||||
options, _ = argument_parser().parse_args()
|
||||
|
||||
from distutils.version import StrictVersion
|
||||
if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
|
||||
style = gr.prefs().get_string('qtgui', 'style', 'raster')
|
||||
Qt.QApplication.setGraphicsSystem(style)
|
||||
qapp = Qt.QApplication(sys.argv)
|
||||
|
||||
tb = top_block_cls(antenna=options.antenna, bb_gain=options.bb_gain, decoded_data_file_path=options.decoded_data_file_path, dev_args=options.dev_args, doppler_correction_per_sec=options.doppler_correction_per_sec, enable_iq_dump=options.enable_iq_dump, file_path=options.file_path, if_gain=options.if_gain, iq_file_path=options.iq_file_path, lo_offset=options.lo_offset, ppm=options.ppm, rf_gain=options.rf_gain, rigctl_port=options.rigctl_port, rx_freq=options.rx_freq, rx_sdr_device=options.rx_sdr_device, waterfall_file_path=options.waterfall_file_path)
|
||||
tb.start()
|
||||
tb.show()
|
||||
|
||||
def quitting():
|
||||
tb.stop()
|
||||
tb.wait()
|
||||
qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
|
||||
qapp.exec_()
|
||||
tb.wait()
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
|
|
|
|||
Loading…
Reference in New Issue