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<?xml version="1.0"?>
<!--
###################################################
##Trellis Metrics
###################################################
-->
<block>
<name>Trellis Metrics</name>
<key>trellis_metrics_x</key>
<category>Error Correction/Trellis</category>
<import>from gnuradio import trellis, digital</import>
<make>trellis.metrics_$(type)($card, $dim, $table, $metric_type)</make>
<callback>set_TABLE($table)</callback>
<param>
<name>Type</name>
<key>type</key>
<type>enum</type>
<option>
<name>Complex</name>
<key>c</key>
<opt>io:complex</opt>
<opt>table:complex_vector</opt>
</option>
<option>
<name>Float</name>
<key>f</key>
<opt>io:float</opt>
<opt>table:real_vector</opt>
</option>
<option>
<name>Int</name>
<key>i</key>
<opt>io:int</opt>
<opt>table:int_vector</opt>
</option>
<option>
<name>Short</name>
<key>s</key>
<opt>io:short</opt>
<opt>table:int_vector</opt>
</option>
</param>
<param>
<name>Output Cardinality</name>
<key>card</key>
<type>int</type>
</param>
<param>
<name>Dimensionality</name>
<key>dim</key>
<type>int</type>
</param>
<param>
<name>Constellation</name>
<key>table</key>
<type>$type.table</type>
</param>
<param>
<name>Metric Type</name>
<key>metric_type</key>
<type>enum</type>
<option>
<name>Euclidean</name>
<key>digital.TRELLIS_EUCLIDEAN</key>
</option>
<option>
<name>Hard Symbol</name>
<key>digital.TRELLIS_HARD_SYMBOL</key>
</option>
<option>
<name>Hard Bit</name>
<key>digital.TRELLIS_HARD_BIT</key>
</option>
</param>
<sink>
<name>in</name>
<type>$type.io</type>
</sink>
<source>
<name>out</name>
<type>float</type>
</source>
<doc>
Generate metrics required for Viterbi or SISO algorithms.
</doc>
</block>
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