It bothered me that the random source wasn't working.
So I took at it again last night and discovered I needed to unpack a bit
from the random source stream.
Using the random source, the following work:
BPSK
QPSK
8PSK
16QAM
using the pull down menu.
There is, however, one caveat: for 8PSK you have to enable the complex
Multiply Const by -1 block after the Chunks to Symbols block.
Alternatively, you could change Chunks to Symbols from -1,1 to 1,-1 -
but that's many more key strokes then just enabling and disabling the
Multiply Const block.
They all work with the GLFSR source too and with the same caveat.
And you were right you don't need the PSK symbol table - you can use
Chunks to Symbols -1,1 (except for 8PKS.)
Also, I had to add a unpack k=1 block after the decoder - otherwise for
DPSK, 8PSK and 16QAM there was a vertical offset and BER sky rockets.
The unpack k=1 is not needed for BPSK and QPSK - but it doesn't create
any problems so I left it enabled.
You just need to add the complex noise source
Have fun with QT.
Actually, there is already a QT menu - the properties of Constellation
Object. You might want to look at the source - just figure what you need
to do to keep it open.
-- Cinaed
<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.13'?>
<flow_graph>
<timestamp>Wed Jan 23 13:59:42 2019</timestamp>
<block>
<key>options</key>
<param>
<key>author</key>
<value></value>
</param>
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<key>window_size</key>
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<param>
<key>category</key>
<value>[GRC Hier Blocks]</value>
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<key>run_command</key>
<value>{python} -u {filename}</value>
</param>
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<value>prompt</value>
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<param>
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<value>True</value>
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<block>
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<key>comment</key>
<value></value>
</param>
<param>
<key>const_points</key>
<value>digital.psk_2()[0]</value>
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<param>
<key>sym_map</key>
<value>digital.psk_2()[1]</value>
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<param>
<key>comment</key>
<value></value>
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<value></value>
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<block>
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<key>alias</key>
<value></value>
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<param>
<key>comment</key>
<value></value>
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<param>
<key>affinity</key>
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<key>vlen</key>
<value>1</value>
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<block>
<key>blocks_multiply_const_vxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>Enable Multiply Const block for 8PSK only.
Otherwise, set Multiply Const block to Bypass.</value>
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<param>
<key>const</key>
<value>-1</value>
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<param>
<key>affinity</key>
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<value>1</value>
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<block>
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<key>vlen</key>
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<block>
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<key>alias</key>
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<key>comment</key>
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<key>minoutbuf</key>
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<block>
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<param>
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<key>id</key>
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</param>
<param>
<key>k</key>
<value>1</value>
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<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
</block>
<block>
<key>digital_chunks_to_symbols_xx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
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<value>1</value>
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<value>1</value>
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<key>id</key>
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<value>0</value>
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<param>
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<value>1</value>
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<param>
<key>out_type</key>
<value>complex</value>
</param>
<param>
<key>symbol_table</key>
<value>-1,1</value>
</param>
</block>
<block>
<key>digital_constellation_decoder_cb</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>constellation</key>
<value>constel</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
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<key>_coordinate</key>
<value>(256, 308)</value>
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<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>digital_constellation_decoder_cb_0</value>
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<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
</block>
<block>
<key>fec_ber_bf</key>
<param>
<key>berlimit</key>
<value>-7.0</value>
</param>
<param>
<key>berminerrors</key>
<value>100</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
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<param>
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<value>True</value>
</param>
<param>
<key>avg</key>
<value>0</value>
</param>
<param>
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<value></value>
</param>
<param>
<key>comment</key>
<value></value>
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<value>1,0,1,1</value>
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<param>
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<value>180</value>
</param>
<param>
<key>graph_type</key>
<value>qtgui.NUM_GRAPH_NONE</value>
</param>
<param>
<key>id</key>
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<param>
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<value>float</value>
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<param>
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<value>1e6</value>
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<param>
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<param>
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<key>label10</key>
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<key>unit10</key>
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<key>label2</key>
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<param>
<key>label6</key>
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<value></value>
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<param>
<key>label7</key>
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<key>unit7</key>
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<param>
<key>color8</key>
<value>("black", "black")</value>
</param>
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<key>factor8</key>
<value>1</value>
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<param>
<key>label8</key>
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</param>
<param>
<key>unit8</key>
<value></value>
</param>
<param>
<key>color9</key>
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<key>label9</key>
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<key>unit9</key>
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<value>2</value>
</param>
<param>
<key>min</key>
<value>0</value>
</param>
<param>
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<value>""</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
</block>
<block>
<key>qtgui_time_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>entags</key>
<value>True</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(280, 492)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_time_sink_x_0</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value>demod random</value>
</param>
<param>
<key>marker1</key>
<value>-1</value>
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<param>
<key>style1</key>
<value>1</value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>marker10</key>
<value>-1</value>
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<param>
<key>style10</key>
<value>1</value>
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<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
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<param>
<key>label2</key>
<value>random</value>
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<key>marker2</key>
<value>-1</value>
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<param>
<key>style2</key>
<value>1</value>
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<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>marker3</key>
<value>-1</value>
</param>
<param>
<key>style3</key>
<value>1</value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>marker4</key>
<value>-1</value>
</param>
<param>
<key>style4</key>
<value>1</value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>marker5</key>
<value>-1</value>
</param>
<param>
<key>style5</key>
<value>1</value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>marker6</key>
<value>-1</value>
</param>
<param>
<key>style6</key>
<value>1</value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>marker7</key>
<value>-1</value>
</param>
<param>
<key>style7</key>
<value>1</value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>marker8</key>
<value>-1</value>
</param>
<param>
<key>style8</key>
<value>1</value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>marker9</key>
<value>-1</value>
</param>
<param>
<key>style9</key>
<value>1</value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>name</key>
<value>""</value>
</param>
<param>
<key>nconnections</key>
<value>2</value>
</param>
<param>
<key>size</key>
<value>250</value>
</param>
<param>
<key>srate</key>
<value>samp_rate</value>
</param>
<param>
<key>stemplot</key>
<value>False</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_delay</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_slope</key>
<value>qtgui.TRIG_SLOPE_POS</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>ylabel</key>
<value>Amplitude</value>
</param>
<param>
<key>yunit</key>
<value>""</value>
</param>
<param>
<key>ymax</key>
<value>6</value>
</param>
<param>
<key>ymin</key>
<value>-1</value>
</param>
</block>
<connection>
<source_block_id>analog_random_source_x_0</source_block_id>
<sink_block_id>blocks_unpack_k_bits_bb_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_char_to_float_0</source_block_id>
<sink_block_id>qtgui_time_sink_x_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_char_to_float_1</source_block_id>
<sink_block_id>qtgui_time_sink_x_0</sink_block_id>
<source_key>0</source_key>
<sink_key>1</sink_key>
</connection>
<connection>
<source_block_id>blocks_multiply_const_vxx_0</source_block_id>
<sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_throttle_0</source_block_id>
<sink_block_id>blocks_char_to_float_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_throttle_0</source_block_id>
<sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_throttle_0</source_block_id>
<sink_block_id>fec_ber_bf_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_unpack_k_bits_bb_0</source_block_id>
<sink_block_id>blocks_char_to_float_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_unpack_k_bits_bb_0</source_block_id>
<sink_block_id>fec_ber_bf_0</sink_block_id>
<source_key>0</source_key>
<sink_key>1</sink_key>
</connection>
<connection>
<source_block_id>blocks_unpack_k_bits_bb_0_0</source_block_id>
<sink_block_id>blocks_throttle_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_chunks_to_symbols_xx_0</source_block_id>
<sink_block_id>blocks_multiply_const_vxx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_constellation_decoder_cb_0</source_block_id>
<sink_block_id>blocks_unpack_k_bits_bb_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>fec_ber_bf_0</source_block_id>
<sink_block_id>qtgui_number_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
</flow_graph>
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