digitizers_stft_algorithms.xml

<?xml version="1.0"?>
<block>
  <name>B.4 STFT (Static)</name>
  <key>digitizers_stft_algorithms</key>
  <category>[digitizers]</category>
  <import>import digitizers</import>
  <import>from gnuradio.filter import firdes</import>
  <make>digitizers.stft_algorithms($samp_rate, $delta_t, $win_size, $win_type, $alg_id, $fq_low, $fq_hi, $nbins)</make>
  
  <callback>self.$(id).set_samp_rate($samp_rate)</callback>
  <callback>self.$(id).set_window_size($win_size)</callback>
  <callback>self.$(id).set_window_type($win_type)</callback>
  <callback>self.$(id).set_freqs($fq_low, $fq_hi)</callback>
  
  <param>
    <name>Sample rate</name>
    <key>samp_rate</key>
    <value>samp_rate</value>
    <type>float</type>
  </param>
  <param>
    <name>Delta T</name>
    <key>delta_t</key>
    <value>0.5</value>
    <type>float</type>
  </param>
  <param>
    <name>Algorithm</name>
    <key>alg_id</key>
    <value>0</value>
    <type>int</type>
    <hide>part</hide>
    <option>
      <name>FFT</name>
      <key>0</key>
    </option>
    <option>
      <name>Goertzel</name>
      <key>1</key>
    </option>
    <option>
      <name>DFT</name>
      <key>2</key>
    </option>
  </param>
  <param>
    <name>Window size</name>
    <key>win_size</key>
    <value>2048</value>
    <type>int</type>
  </param>
  <param>
    <name>Window Type</name>
    <key>win_type</key>
    <value>firdes.WIN_BLACKMAN_hARRIS</value>
    <type>enum</type>
    <hide>#if $alg_id() == 0 then 'part' else 'all'#</hide>
    <option>
      <name>Blackman-harris</name>
      <key>firdes.WIN_BLACKMAN_hARRIS</key>
    </option>
    <option>
      <name>Hamming</name>
      <key>firdes.WIN_HAMMING</key>
    </option>
    <option>
      <name>Hann</name>
      <key>firdes.WIN_HANN</key>
    </option>
    <option>
      <name>Blackman</name>
      <key>firdes.WIN_BLACKMAN</key>
    </option>
    <option>
      <name>Rectangular</name>
      <key>firdes.WIN_RECTANGULAR</key>
    </option>
    <option>
      <name>Kaiser</name>
      <key>firdes.WIN_KAISER</key>
    </option>
    <option>
      <name>Flat-top</name>
      <key>firdes.WIN_FLATTOP</key>
    </option>
  </param>
  <param>
    <name>Lower frequency</name>
    <key>fq_low</key>
    <value>0.0</value>
    <type>float</type>
    <hide>#if $alg_id() == 1 then 'none' else 'all'#</hide>
  </param>
  <param>
    <name>Upper frequency</name>
    <key>fq_hi</key>
    <value>samp_rate/2</value>
    <type>float</type>
    <hide>#if $alg_id() == 1 then 'none' else 'all'#</hide>
  </param>
  <param>
    <name>Number of bins</name>
    <key>nbins</key>
    <value>win_size/2</value>
    <type>int</type>
    <hide>#if $alg_id() == 1 then 'none' else 'all'#</hide>
  </param>
  
  
  
  <sink>
    <name>sig</name>
    <type>float</type>
  </sink>
  <source>
  	<name>ampl</name>
    <type>float</type>
	<vlen>#if $alg_id() == 1 then $nbins() else $win_size()#</vlen>
  </source>
  <source>
  	<name>phase</name>
    <type>float</type>
	<vlen>#if $alg_id() == 1 then $nbins() else $win_size()#</vlen>
  </source>
  <source>
    <name>freqs</name>
    <type>float</type>
    <vlen>#if $alg_id() == 1 then $nbins() else $win_size()#</vlen>
  </source>
</block>