Difference between revisions of "Hierarchical Polyphase Channelizer"

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(add Example Flowgraph and Output)
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; Passband Ripple
; Passband Ripple
: Pass band ripple in dB
: Pass band ripple in dB
== Example Flowgraph ==
This flowgraph can be found at [https://raw.githubusercontent.com/gnuradio/gnuradio/master/gr-filter/examples/polyphase_channelizer_demo.grc]
[[File:Polyphase_channelizer_demo_fg.png|800px]]
== Example Output ==
[[File:Polyphase_channelizer_demo_out.png|800px]]
== Source Files ==
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]

Revision as of 01:45, 22 December 2021

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

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

Example Flowgraph

This flowgraph can be found at [1]

Polyphase channelizer demo fg.png

Example Output

Polyphase channelizer demo out.png

Source Files

C++ files
TODO
Header files
TODO
Public header files
TODO
Block definition
TODO