git.gag.com Git - debian/gnuradio/blob - grc/blocks/root_raised_cosine_filter.xml

   1 <?xml version="1.0"?>
   2 <!--
   3 ###################################################
   4 ##Root Raised Cosine Filter: Custom wrapper
   5 ###################################################
   6  -->
   7 <block>
   8         <name>Root Raised Cosine Filter</name>
   9         <key>root_raised_cosine_filter</key>
  10         <import>from gnuradio import gr</import>
  11         <import>from gnuradio.gr import firdes</import>
  12         <make>gr.$(type)(#if str($type).startswith('interp') then $interp else $decim#, firdes.root_raised_cosine(
  13         $gain, $samp_rate, $sym_rate, $alpha, $ntaps))</make>
  14         <callback>set_taps(firdes.root_raised_cosine($gain, $samp_rate, $sym_rate, $alpha, $ntaps))</callback>
  15         <param>
  16                 <name>FIR Type</name>
  17                 <key>type</key>
  18                 <type>enum</type>
  19                 <option>
  20                         <name>Complex->Complex (Decimating)</name>
  21                         <key>fir_filter_ccf</key>
  22                         <opt>input:complex</opt>
  23                         <opt>output:complex</opt>
  24                 </option>
  25                 <option>
  26                         <name>Complex->Complex (Interpolating)</name>
  27                         <key>interp_fir_filter_ccf</key>
  28                         <opt>input:complex</opt>
  29                         <opt>output:complex</opt>
  30                 </option>
  31                 <option>
  32                         <name>Float->Float (Decimating)</name>
  33                         <key>fir_filter_fff</key>
  34                         <opt>input:float</opt>
  35                         <opt>output:float</opt>
  36                 </option>
  37                 <option>
  38                         <name>Float->Float (Interpolating)</name>
  39                         <key>interp_fir_filter_fff</key>
  40                         <opt>input:float</opt>
  41                         <opt>output:float</opt>
  42                 </option>
  43         </param>
  44         <param>
  45                 <name>Decimation</name>
  46                 <key>decim</key>
  47                 <value>1</value>
  48                 <type>int</type>
  49                 <hide>#if str($type).startswith('interp') then 'all' else 'none'#</hide>
  50         </param>
  51         <param>
  52                 <name>Interpolation</name>
  53                 <key>interp</key>
  54                 <value>1</value>
  55                 <type>int</type>
  56                 <hide>#if str($type).startswith('interp') then 'none' else 'all'#</hide>
  57         </param>
  58         <param>
  59                 <name>Gain</name>
  60                 <key>gain</key>
  61                 <value>1</value>
  62                 <type>real</type>
  63         </param>
  64         <param>
  65                 <name>Sample Rate</name>
  66                 <key>samp_rate</key>
  67                 <value>samp_rate</value>
  68                 <type>real</type>
  69         </param>
  70         <param>
  71                 <name>Symbol Rate</name>
  72                 <key>sym_rate</key>
  73                 <value>1.0</value>
  74                 <type>real</type>
  75         </param>
  76         <param>
  77                 <name>Alpha</name>
  78                 <key>alpha</key>
  79                 <value>0.35</value>
  80                 <type>real</type>
  81         </param>
  82         <param>
  83                 <name>Num Taps</name>
  84                 <key>ntaps</key>
  85                 <value>11*samp_rate</value>
  86                 <type>int</type>
  87         </param>
  88         <sink>
  89                 <name>in</name>
  90                 <type>$type.input</type>
  91         </sink>
  92         <source>
  93                 <name>out</name>
  94                 <type>$type.output</type>
  95         </source>
  96         <doc>
  97 This filter is a convenience wrapper for an fir filter and a firdes taps generating function.
  98
  99 Sample rate in Hertz.
 100         </doc>
 101 </block>