/
fsk-demod.grc
830 lines (829 loc) · 16.7 KB
/
fsk-demod.grc
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<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.10'?>
<flow_graph>
<timestamp>Sun Jul 16 14:43:12 2017</timestamp>
<block>
<key>options</key>
<param>
<key>author</key>
<value>Johannes Mittendorfer</value>
</param>
<param>
<key>window_size</key>
<value></value>
</param>
<param>
<key>category</key>
<value>[GRC Hier Blocks]</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>description</key>
<value>Demodulates a FSK signal</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(8, 8)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>generate_options</key>
<value>hb</value>
</param>
<param>
<key>hier_block_src_path</key>
<value>.:</value>
</param>
<param>
<key>id</key>
<value>fsk_demod</value>
</param>
<param>
<key>max_nouts</key>
<value>0</value>
</param>
<param>
<key>qt_qss_theme</key>
<value></value>
</param>
<param>
<key>realtime_scheduling</key>
<value></value>
</param>
<param>
<key>run_command</key>
<value>{python} -u {filename}</value>
</param>
<param>
<key>run_options</key>
<value>prompt</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>thread_safe_setters</key>
<value></value>
</param>
<param>
<key>title</key>
<value>FSK demod</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(944, 316)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>fsk_deviation_hz</value>
</param>
<param>
<key>value</key>
<value>(high-low)/2</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(944, 388)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>high</value>
</param>
<param>
<key>value</key>
<value>center+deviation</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(944, 452)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>low</value>
</param>
<param>
<key>value</key>
<value>center-deviation</value>
</param>
</block>
<block>
<key>analog_agc_xx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>Normalize the signal for clock recovery</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(264, 472)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>gain</key>
<value>0.6</value>
</param>
<param>
<key>id</key>
<value>analog_agc_xx_0</value>
</param>
<param>
<key>max_gain</key>
<value>65536</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>rate</key>
<value>1e-4</value>
</param>
<param>
<key>reference</key>
<value>0.6</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
</block>
<block>
<key>analog_quadrature_demod_cf</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>Convert the frequency shift to a number
HLHHLLL -> 1011000</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(536, 300)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>gain</key>
<value>samp_rate/(2*math.pi*fsk_deviation_hz/8.0)</value>
</param>
<param>
<key>id</key>
<value>analog_quadrature_demod_cf_1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_multiply_const_vxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>Flip 1 and 0.</value>
</param>
<param>
<key>const</key>
<value>mult</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(296, 700)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_multiply_const_vxx_0_0</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(344, 128)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>center</value>
</param>
<param>
<key>label</key>
<value>Center frequency</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>value</key>
<value>160e6</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(496, 128)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>deviation</value>
</param>
<param>
<key>label</key>
<value>Frequency deviation</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>value</key>
<value>400</value>
</param>
</block>
<block>
<key>digital_binary_slicer_fb</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>Make signal digital</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(600, 704)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>digital_binary_slicer_fb_2_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
</block>
<block>
<key>digital_clock_recovery_mm_xx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>Recover the signal clock</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(568, 464)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>gain_mu</key>
<value>0.175</value>
</param>
<param>
<key>gain_omega</key>
<value>0.25*0.175*0.175</value>
</param>
<param>
<key>id</key>
<value>digital_clock_recovery_mm_xx_1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>mu</key>
<value>0.5</value>
</param>
<param>
<key>omega_relative_limit</key>
<value>0</value>
</param>
<param>
<key>omega</key>
<value>1/((1./samp_rate)*(high-low)*2)</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
</block>
<block>
<key>freq_xlating_fir_filter_xxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>center_freq</key>
<value>low+(high-low)/2</value>
</param>
<param>
<key>comment</key>
<value>Filter out the signal between high and low</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>decim</key>
<value>1</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(232, 280)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>freq_xlating_fir_filter_xxx_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate</value>
</param>
<param>
<key>taps</key>
<value>firdes.low_pass(1.0, samp_rate, (high-low), 200)</value>
</param>
<param>
<key>type</key>
<value>fcc</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>Multiplication of raw float values (e.g. -1 when higher frequency is 0 and lower is 1)</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(688, 136)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>mult</value>
</param>
<param>
<key>label</key>
<value>Multiplication</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>intx</value>
</param>
<param>
<key>value</key>
<value>-1</value>
</param>
</block>
<block>
<key>pad_sink</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1120, 708)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pad_sink_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>label</key>
<value>out</value>
</param>
<param>
<key>num_streams</key>
<value>1</value>
</param>
<param>
<key>optional</key>
<value>False</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>pad_sink</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1112, 268)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pad_sink_0_0</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>label</key>
<value>demoded</value>
</param>
<param>
<key>num_streams</key>
<value>1</value>
</param>
<param>
<key>optional</key>
<value>True</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>pad_source</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(56, 284)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pad_source_0</value>
</param>
<param>
<key>label</key>
<value>in</value>
</param>
<param>
<key>num_streams</key>
<value>1</value>
</param>
<param>
<key>optional</key>
<value>False</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(208, 128)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>samp_rate</value>
</param>
<param>
<key>label</key>
<value>Sample rate</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>intx</value>
</param>
<param>
<key>value</key>
<value>48000</value>
</param>
</block>
<connection>
<source_block_id>analog_agc_xx_0</source_block_id>
<sink_block_id>digital_clock_recovery_mm_xx_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>analog_quadrature_demod_cf_1</source_block_id>
<sink_block_id>analog_agc_xx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>analog_quadrature_demod_cf_1</source_block_id>
<sink_block_id>pad_sink_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_multiply_const_vxx_0_0</source_block_id>
<sink_block_id>digital_binary_slicer_fb_2_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_binary_slicer_fb_2_0</source_block_id>
<sink_block_id>pad_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_clock_recovery_mm_xx_1</source_block_id>
<sink_block_id>blocks_multiply_const_vxx_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>freq_xlating_fir_filter_xxx_0</source_block_id>
<sink_block_id>analog_quadrature_demod_cf_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pad_source_0</source_block_id>
<sink_block_id>freq_xlating_fir_filter_xxx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
</flow_graph>