Hierarchical Polyphase Channelizer

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A helpful wrapper to the Polyphase Channelizer block, making it easier to use. It is written as a Python Hier block, see https://github.com/gnuradio/gnuradio/blob/master/gr-filter/python/filter/pfb.py

See Polyphase Filterbanks for more info on Polyphase Filters within GNU Radio.

Parameters[edit]

Number of Channels
The number of channels to split into.
Number of Filterbanks
The number of filterbank blocks to use (default=2).
Taps
The taps to use. If this is None then taps are generated using optfir.low_pass.
Output Channels
Which channels to output streams for (a list of integers) (default is all channels).
Attenuation
Stop band attenuation.
Fraction of Channel to Keep
The fraction of the channel you want to keep.
Transition Band
Transition band with as fraction of channel width.
Passband Ripple
Pass band ripple in dB