Group delay approximation of allpass digital filters by transforming the desired response

Tatsuya Matsunaga, Masaaki Ikehara

Research output: Contribution to journalConference articlepeer-review

Abstract

In this paper, we present a new design method of allpass digital filters with equiripple group delay response. This method is based on solving a least squares solution iteratively. At each iteration, the desired group delay response is transformed so as to have equiripple error. By this method, an equiripple solution is obtained very quickly with less computational complexity.

Original languageEnglish
Pages (from-to)II45-II48
JournalMidwest Symposium on Circuits and Systems
Volume2
Publication statusPublished - 2004 Dec 1
EventThe 2004 47th Midwest Symposium on Circuits and Systems - Conference Proceedings - Hiroshima, Japan
Duration: 2004 Jul 252004 Jul 28

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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