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<?xml version="1.0"?>
<block>
<name>FCCH bursts detector</name>
<key>gsm_fcch_detector</key>
<import>import grgsm</import>
<make>grgsm.fcch_detector($OSR)</make>
<callback>set_OSR($OSR)</callback>
<param>
<name>OverSamplingRatio</name>
<key>OSR</key>
<value>4</value>
<type>int</type>
</param>
<sink>
<name>in</name>
<type>complex</type>
<vlen>1</vlen>
</sink>
<source>
<name>out</name>
<type>complex</type>
<vlen>1</vlen>
</source>
<doc>Piotr Krysik
Detects positions of FCCH bursts. At the end of each detected FCCH burst adds to the stream a tag with key "fcch" and value which is a frequency offset estimate. The input sampling frequency should be integer multiply of GSM GMKS symbol rate - 1625000/6 Hz.</doc>
<grc_source>/home/piotr/Odbiornik_gsm/gr-gsm/examples/gsm_fcch_detector.grc</grc_source>
</block>
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