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

Tatsuya Matsunaga, Masaaki Ikehara

    Research output: Contribution to journalConference article

    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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