Added blks2.pfb_arb_resampler_ccf to GRC block list

* New block XML file
* Added set_taps callback to blks2 hier block
* GRC example showing pre- and post-resampling swept spectrum

diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_arb_resampler.py b/gnuradio-core/src/python/gnuradio/blks2impl/pfb_arb_resampler.py
index b1b3dfcab57d5bbc5650e6b78c54f0299faa2f77..e40d9636ad8fdf9fdfc9e75c3703d732a13297a4 100644 (file)
--- a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_arb_resampler.py
+++ b/gnuradio-core/src/python/gnuradio/blks2impl/pfb_arb_resampler.py
@@ -24,7 +24,7 @@ from gnuradio import gr
 
 class pfb_arb_resampler_ccf(gr.hier_block2):
     '''
-    Convinience wrapper for the polyphase filterbank arbitrary resampler.
+    Convenience wrapper for the polyphase filterbank arbitrary resampler.
 
     The block takes a single complex stream in and outputs a single complex
     stream out. As such, it requires no extra glue to handle the input/output
@@ -45,6 +45,5 @@ class pfb_arb_resampler_ccf(gr.hier_block2):
         self.connect(self, self.pfb)
         self.connect(self.pfb, self)
         
-        
-        
-        
+    def set_taps(self, taps):
+        self.pfb.set_taps(taps)

diff --git a/gnuradio-examples/python/pfb/Makefile.am b/gnuradio-examples/python/pfb/Makefile.am
index 4aa9248eadf9d4e920601cd3f1eb36a79d7d9b3c..0b91d0a2daa885f8f8f3301ce0bc08f6978ba13e 100644 (file)
--- a/gnuradio-examples/python/pfb/Makefile.am
+++ b/gnuradio-examples/python/pfb/Makefile.am
@@ -29,3 +29,6 @@ dist_ourdata_SCRIPTS =                \
        decimate.py             \
        interpolate.py          \
        fmtest.py
+
+dist_ourdata_DATA =            \
+       resampler_demo.grc

diff --git a/gnuradio-examples/python/pfb/resampler_demo.grc b/gnuradio-examples/python/pfb/resampler_demo.grc
new file mode 100644 (file)
index 0000000..468636a
--- /dev/null
+++ b/gnuradio-examples/python/pfb/resampler_demo.grc
@@ -0,0 +1,598 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+  <timestamp>Sun Aug 23 11:39:47 2009</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>id</key>
+      <value>resampler_demo</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value></value>
+    </param>
+    <param>
+      <key>author</key>
+      <value></value>
+    </param>
+    <param>
+      <key>description</key>
+      <value></value>
+    </param>
+    <param>
+      <key>window_size</key>
+      <value>1280, 1024</value>
+    </param>
+    <param>
+      <key>generate_options</key>
+      <value>wx_gui</value>
+    </param>
+    <param>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(10, 10)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>import</key>
+    <param>
+      <key>id</key>
+      <value>import_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>import</key>
+      <value>import math</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(11, 59)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>rs_taps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>firdes.low_pass(nphases, nphases, frac_bw, 0.5-frac_bw)</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(273, 154)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_add_const_vxx</key>
+    <param>
+      <key>id</key>
+      <value>adder</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>const</key>
+      <value>-1.0</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(227, 303)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_throttle</key>
+    <param>
+      <key>id</key>
+      <value>throttle</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>samples_per_second</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(227, 493)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_fftsink2</key>
+    <param>
+      <key>id</key>
+      <value>orig_fft</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Original Spectrum</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>baseband_freq</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>y_per_div</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>y_divs</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ref_level</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>fft_size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>fft_rate</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>peak_hold</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>avg_alpha</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>1, 0, 1, 3</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(409, 289)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_fftsink2</key>
+    <param>
+      <key>id</key>
+      <value>resamp_fft</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Resampled Spectrum</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>new_rate</value>
+    </param>
+    <param>
+      <key>baseband_freq</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>y_per_div</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>y_divs</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ref_level</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>fft_size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>fft_rate</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>peak_hold</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>avg_alpha</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>2, 0, 1, 3</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(640, 256)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_sig_source_x</key>
+    <param>
+      <key>id</key>
+      <value>tri_source</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>waveform</key>
+      <value>gr.GR_TRI_WAVE</value>
+    </param>
+    <param>
+      <key>freq</key>
+      <value>0.05</value>
+    </param>
+    <param>
+      <key>amp</key>
+      <value>2.0</value>
+    </param>
+    <param>
+      <key>offset</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(21, 271)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_frequency_modulator_fc</key>
+    <param>
+      <key>id</key>
+      <value>fm_mod</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>sensitivity</key>
+      <value>math.pi</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(411, 493)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>blks2_pfb_arb_resampler_ccf</key>
+    <param>
+      <key>id</key>
+      <value>resampler</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>rate</key>
+      <value>float(new_rate)/samp_rate</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>rs_taps</value>
+    </param>
+    <param>
+      <key>size</key>
+      <value>nphases</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(641, 477)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>nphases</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>32</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(185, 153)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_static_text</key>
+    <param>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Sample Rate</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>44100</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>None</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(179, 14)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_static_text</key>
+    <param>
+      <key>id</key>
+      <value>new_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Resampled Rate</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>48000</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>None</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 1, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(328, 15)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_static_text</key>
+    <param>
+      <key>id</key>
+      <value>frac_bw</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Fractional Bandwidth</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.45</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>lambda x: "%0.2f"%x</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0,2,1,1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(473, 14)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>tri_source</source_block_id>
+    <sink_block_id>adder</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>adder</source_block_id>
+    <sink_block_id>throttle</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>resampler</source_block_id>
+    <sink_block_id>resamp_fft</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>fm_mod</source_block_id>
+    <sink_block_id>resampler</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>fm_mod</source_block_id>
+    <sink_block_id>orig_fft</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>throttle</source_block_id>
+    <sink_block_id>fm_mod</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+</flow_graph>

diff --git a/grc/blocks/Makefile.am b/grc/blocks/Makefile.am
index fbd8f4bb4dace7e169f4a3f640691815e703c1f3..caae6ce7540e7c8465a91c94d4feb23ce8ab8376 100644 (file)
--- a/grc/blocks/Makefile.am
+++ b/grc/blocks/Makefile.am
@@ -45,6 +45,7 @@ dist_ourdata_DATA = \
        blks2_ofdm_mod.xml \
        blks2_packet_decoder.xml \
        blks2_packet_encoder.xml \
+       blks2_pfb_arb_resampler.xml \
        blks2_qamx_demod.xml \
        blks2_qamx_mod.xml \
        blks2_rational_resampler_xxx.xml \

diff --git a/grc/blocks/blks2_pfb_arb_resampler.xml b/grc/blocks/blks2_pfb_arb_resampler.xml
new file mode 100644 (file)
index 0000000..062b0dd
--- /dev/null
+++ b/grc/blocks/blks2_pfb_arb_resampler.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Polyphase Arbitrary Resampler
+###################################################
+ -->
+<block>
+       <name>Polyphase Resampler</name>
+       <key>blks2_pfb_arb_resampler_ccf</key>
+       <import>from gnuradio import blks2</import>
+       <import>from gnuradio.gr import firdes</import>
+       <make>blks2.pfb_arb_resampler_ccf(
+       $rate,
+       $taps,
+       $size,
+)</make>
+       <callback>set_taps($taps)</callback>
+       <param>
+               <name>Resample Rate</name>
+               <key>rate</key>
+               <type>real</type>
+       </param>
+       <param>
+               <name>Taps</name>
+               <key>taps</key>
+               <type>real_vector</type>
+       </param>
+       <param>
+               <name>Size (# phases)</name>
+               <key>size</key>
+               <value>32</value>
+               <type>int</type>
+       </param>
+       <sink>
+               <name>in</name>
+               <type>complex</type>
+       </sink>
+       <source>
+               <name>out</name>
+               <type>complex</type>
+       </source>
+</block>

diff --git a/grc/blocks/block_tree.xml b/grc/blocks/block_tree.xml
index 2cedb45a2a7dbb376f54a7cc0ccf53b24b9a1b9c..5b45466f59289a25759b88bc5322debd24ca87e9 100644 (file)
--- a/grc/blocks/block_tree.xml
+++ b/grc/blocks/block_tree.xml
@@ -176,6 +176,8 @@
                <!-- Filter banks -->
                <block>blks2_synthesis_filterbank</block>
                <block>blks2_analysis_filterbank</block>
+               <!-- Polyphase filers -->
+               <block>blks2_pfb_arb_resampler_ccf</block>
                <!-- Other filters -->
                <block>gr_single_pole_iir_filter_xx</block>
                <block>gr_hilbert_fc</block>