Polyphase quadrature filter
id:
polyphase-quadrature-filter-260-3852622
title:
Polyphase quadrature filter
text:
A polyphase quadrature filter, or PQF, is a filter bank which splits an input signal into a given number N of equidistant sub-bands. A factor of N subsamples these sub-bands, so they are critically sampled.
An important application of the polyphase filters concerns the filtering and decimation of large band input signals, e.g. coming from a high rate ADC, which can not be directly processed by an FPGA or in some case by an ASIC either. Suppose the ADC plus FPGA/ASIC interface implements a demult
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wiki
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encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Polyphase_quadrature_filter
date created:
date modified:
2023-08-23T13:05:58Z
main entity:
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