On 06/24/2011 01:14 AM, Colby Boyer wrote: > > > > Hi Marcus, > > Check out a pfb channelizer! > > gnuradio-core/src/python/gnuradio/blks2impl/pfb_channelizer.py is a > nice python wrapper for the class and gr_pfb_channelizer_ccf is the > C++ name. > > Also if you need to carve out a a shifted part of the spectrum, use > the gr_freq_xlating_fir_filter_*** block. > > These are polyphase implementations so they should be computationally > efficient. Lastly, if you need even more efficiency you can see if > they are doing the fft implementation of filtering (not sure if they > are vs standard computation). As you know, there is the difference > between NlogN and N^2 > > --Colby Right, so how do I set the filter taps for the PFB channelizer? Is it just a low-pass filter, or something else?
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