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

Tatsuya Matsunaga, Masaaki Ikehara

    Research output: Contribution to journalConference article

    1 Citation (Scopus)

    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)393-396
    Number of pages4
    JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    Volume6
    Publication statusPublished - 2003 Sep 25
    Event2003 IEEE International Conference on Accoustics, Speech, and Signal Processing - Hong Kong, Hong Kong
    Duration: 2003 Apr 62003 Apr 10

    ASJC Scopus subject areas

    • Software
    • Signal Processing
    • Electrical and Electronic Engineering

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