Changed directory structure.

Corrected clock_offset_corrector (for some streange and yet unknown reason fractional resampler eats strem tags for some values of sps).
(this commit may contain some changes that are not described)

6 files changed, 196 insertions, 0 deletions

diff --git a/grc/receiver/gsm_clock_offset_control.xml b/grc/receiver/gsm_clock_offset_control.xml
new file mode 100644
index 0000000..a5c8854
--- /dev/null
+++ b/grc/receiver/gsm_clock_offset_control.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0"?>
+<block>
+  <name>GSM clock offset control</name>
+  <key>gsm_clock_offset_control</key>
+  <category>GSM</category>
+  <import>import gsm</import>
+  <make>gsm.clock_offset_control($fc, $samp_rate)</make>
+  <callback></callback>
+  <param>
+    <name>fc</name>
+    <key>fc</key>
+    <value>fc</value>
+    <type>float</type>
+  </param>
+
+  <param>
+    <name>samp_rate</name>
+    <key>samp_rate</key>
+    <value>samp_rate</value>
+    <type>float</type>
+  </param>
+
+  <sink>
+    <name>measurements</name>
+    <type>message</type>
+  </sink>
+
+  <source>
+    <name>ppm</name>
+    <type>message</type>
+    <optional>1</optional>
+  </source>
+</block>
diff --git a/grc/receiver/gsm_fcch_burst_tagger.xml b/grc/receiver/gsm_fcch_burst_tagger.xml
new file mode 100644
index 0000000..90f5688
--- /dev/null
+++ b/grc/receiver/gsm_fcch_burst_tagger.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+<block>
+  <name>fcch_burst_tagger</name>
+  <key>gsm_fcch_burst_tagger</key>
+  <category>GSM</category>
+  <import>import gsm</import>
+  <make>gsm.fcch_burst_tagger($OSR)</make>
+  <param>
+    <name>OSR</name>
+    <key>OSR</key>
+    <type>int</type>
+  </param>
+
+  <sink>
+    <name>in</name>
+    <type>complex</type>
+  </sink>
+  
+  <sink>
+    <name>threshold</name>
+    <type>float</type>
+  </sink>
+
+  <source>
+    <name>out</name>
+    <type>complex</type>
+  </source>
+</block>
diff --git a/grc/receiver/gsm_fcch_detector.xml b/grc/receiver/gsm_fcch_detector.xml
new file mode 100644
index 0000000..d40aba7
--- /dev/null
+++ b/grc/receiver/gsm_fcch_detector.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+<block>
+  <name>FCCH bursts detector</name>
+  <key>gsm_fcch_detector</key>
+  <category>GSM</category>
+  <import>import gsm</import>
+  <make>gsm.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>
diff --git a/grc/receiver/gsm_receiver.xml b/grc/receiver/gsm_receiver.xml
new file mode 100644
index 0000000..eb0db5f
--- /dev/null
+++ b/grc/receiver/gsm_receiver.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0"?>
+<block>
+  <name>GSM Receiver bare</name>
+  <key>gsm_receiver</key>
+  <category>GSM</category>
+  <import>import gsm</import>
+  <make>gsm.receiver($osr, $arfcn)</make>
+
+  <param>
+    <name>Oversampling ratio</name>
+    <key>osr</key>
+    <value>4</value>
+    <type>int</type>
+  </param>
+
+  <param>
+    <name>ARFCN</name>
+    <key>arfcn</key>
+    <value>0</value>
+    <type>int</type>
+  </param>
+
+  <sink>
+    <name>in</name>
+    <type>complex</type>
+  </sink>
+  <source>
+    <name>bursts</name>
+    <type>message</type>
+    <optional>1</optional>
+  </source>
+  
+  <source>
+    <name>measurements</name>
+    <type>message</type>
+    <optional>1</optional>
+  </source>
+</block>
diff --git a/grc/receiver/gsm_receiver_hier.xml b/grc/receiver/gsm_receiver_hier.xml
new file mode 100644
index 0000000..b41eb99
--- /dev/null
+++ b/grc/receiver/gsm_receiver_hier.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0"?>
+<block>
+  <name>GSM Receiver hier</name>
+  <key>gsm_receiver_hier</key>
+  <category>GSM</category>
+  <import>import gsm</import>
+  <make>gsm.receiver_hier($input_rate, $osr, $arfcn)</make>
+  <param>
+    <name>Input rate</name>
+    <key>input_rate</key>
+    <value>samp_rate</value>
+    <type>real</type>
+  </param>
+
+  <param>
+    <name>Oversampling ratio</name>
+    <key>osr</key>
+    <value>4</value>
+    <type>int</type>
+  </param>
+
+  <param>
+    <name>ARFCN</name>
+    <key>arfcn</key>
+    <value>0</value>
+    <type>int</type>
+  </param>
+
+  <sink>
+    <name>in</name>
+    <type>complex</type>
+  </sink>
+  <source>
+    <name>bursts</name>
+    <type>message</type>
+    <optional>1</optional>
+  </source>
+  
+  <source>
+    <name>measurements</name>
+    <type>message</type>
+    <optional>1</optional>
+  </source>
+</block>
diff --git a/grc/receiver/gsm_sch_detector.xml b/grc/receiver/gsm_sch_detector.xml
new file mode 100644
index 0000000..3445dc6
--- /dev/null
+++ b/grc/receiver/gsm_sch_detector.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<block>
+  <name>SCH bursts detector</name>
+  <key>gsm_sch_detector</key>
+  <category>GSM</category>
+  <import>import gsm</import>
+  <make>gsm.sch_detector($OSR)</make>
+  <callback>set_OSR($OSR)</callback>
+  <param>
+    <name>OSR</name>
+    <key>OSR</key>
+    <value>4</value>
+    <type>int</type>
+  </param>
+
+  <sink>
+    <name>in</name>
+    <type>complex</type>
+  </sink>
+
+  <source>
+    <name>out</name>
+    <type>complex</type>
+  </source>
+</block>