Modifying blsk2 wrapper for PFB arbitrary resampler to allow the user to just specify...

[debian/gnuradio] / gnuradio-core / src / python / gnuradio / blks2impl / pfb_arb_resampler.py

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 e40d9636ad8fdf9fdfc9e75c3703d732a13297a4..cd9289fa5fbcdbc08e13f47070086b50e2d249bf 100644 (file)
--- a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_arb_resampler.py
+++ b/gnuradio-core/src/python/gnuradio/blks2impl/pfb_arb_resampler.py
@@ -31,15 +31,22 @@ class pfb_arb_resampler_ccf(gr.hier_block2):
     streams. This block is provided to be consistent with the interface to the
     other PFB block.
     '''
     streams. This block is provided to be consistent with the interface to the
     other PFB block.
     '''

-    def __init__(self, rate, taps, flt_size=32):
+    def __init__(self, rate, taps=None, flt_size=32, atten=80):

        gr.hier_block2.__init__(self, "pfb_arb_resampler_ccf",
                                gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
                                gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature
         
         self._rate = rate
        gr.hier_block2.__init__(self, "pfb_arb_resampler_ccf",
                                gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
                                gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature
         
         self._rate = rate

-        self._taps = taps

         self._size = flt_size
 
         self._size = flt_size
 

+        if taps is not None:
+            self._taps = taps
+        else:
+            # Create a filter that covers the full bandwidth of the input signal
+            bw = 0.5
+            tb = 0.1
+            self._taps = gr.firdes.low_pass_2(self._size, self._size, bw, tb, atten)
+

         self.pfb = gr.pfb_arb_resampler_ccf(self._rate, self._taps, self._size)
 
         self.connect(self, self.pfb)
         self.pfb = gr.pfb_arb_resampler_ccf(self._rate, self._taps, self._size)
 
         self.connect(self, self.pfb)