Quadrature mirror filter
id:
quadrature-mirror-filter-320-7160755
title:
Quadrature mirror filter
text:
In digital signal processing, a quadrature mirror filter is a filter whose magnitude response is the mirror image around π / 2 of that of another filter. Together these filters, first introduced by Croisier et al., are known as the quadrature mirror filter pair. A filter H 1 is the quadrature mirror filter of H 0 if H 1 = H 0 . The filter responses are symmetric about Ω = π / 2 : In audio/voice codecs, a quadrature mirror filter pair is often used to implement a filter bank that splits an input
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wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Quadrature_mirror_filter
date created:
date modified:
2022-08-26T18:38:39Z
main entity:
{"identifier":"Q2699730","url":"https://www.wikidata.org/entity/Q2699730"}
image:
fields total:
13
integrity:
13