| <?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> |