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   1 <?xml version="1.0"?>
   2 <!--
   3 ###################################################
   4 ##Trellis Metrics
   5 ###################################################
   6  -->
   7 <block>
   8         <name>Trellis Metrics</name>
   9         <key>trellis_metrics_x</key>
  10         <import>from gnuradio import trellis</import>
  11         <make>trellis.metrics_$(type)($card, $dim, $table, $metric_type)</make>
  12         <callback>set_TABLE($table)</callback>
  13         <param>
  14                 <name>Type</name>
  15                 <key>type</key>
  16                 <type>enum</type>
  17                 <option>
  18                         <name>Complex</name>
  19                         <key>c</key>
  20                         <opt>io:complex</opt>
  21                         <opt>table:complex_vector</opt>
  22                 </option>
  23                 <option>
  24                         <name>Float</name>
  25                         <key>f</key>
  26                         <opt>io:float</opt>
  27                         <opt>table:real_vector</opt>
  28                 </option>
  29                 <option>
  30                         <name>Int</name>
  31                         <key>i</key>
  32                         <opt>io:int</opt>
  33                         <opt>table:int_vector</opt>
  34                 </option>
  35                 <option>
  36                         <name>Short</name>
  37                         <key>s</key>
  38                         <opt>io:short</opt>
  39                         <opt>table:int_vector</opt>
  40                 </option>
  41         </param>
  42         <param>
  43                 <name>Output Cardinality</name>
  44                 <key>card</key>
  45                 <type>int</type>
  46         </param>
  47         <param>
  48                 <name>Dimensionality</name>
  49                 <key>dim</key>
  50                 <type>int</type>
  51         </param>
  52         <param>
  53                 <name>Constellation</name>
  54                 <key>table</key>
  55                 <type>$type.table</type>
  56         </param>
  57         <param>
  58                 <name>Metric Type</name>
  59                 <key>metric_type</key>
  60                 <type>enum</type>
  61                 <option>
  62                         <name>Euclidean</name>
  63                         <key>trellis.TRELLIS_EUCLIDEAN</key>
  64                 </option>
  65                 <option>
  66                         <name>Hard Symbol</name>
  67                         <key>trellis.TRELLIS_HARD_SYMBOL</key>
  68                 </option>
  69                 <option>
  70                         <name>Hard Bit</name>
  71                         <key>trellis.TRELLIS_HARD_BIT</key>
  72                 </option>
  73         </param>
  74         <sink>
  75                 <name>in</name>
  76                 <type>$type.io</type>
  77         </sink>
  78         <source>
  79                 <name>out</name>
  80                 <type>float</type>
  81         </source>
  82         <doc>
  83 Generate metrics required for Viterbi or SISO algorithms.
  84         </doc>
  85 </block>