Simultaneous approximation for magnitude and phase responses of FIR digital filters

Masahiro Okuda, Masahiro Yoshida, Masaaki Ikehara, Shin Ichi Takahashi

    研究成果: Article査読

    抄録

    In this paper, we present a new numerical method for the complex approximation of FIR digital filters. Our objective is to design FIR filters with equiripple magnitude and phase errors. The proposed method solves the least squares (LS) problem iteratively. At each iteration, the desired response is updated so as to have an equiripple error. The proposed methods do not require any time-consuming optimization procedure such as the quasi-Newton methods and converge to equiripple solutions quickly. We show some examples to illustrate the advantages of our proposed methods.

    本文言語English
    ページ(範囲)2957-2963
    ページ数7
    ジャーナルIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
    E87-A
    11
    出版ステータスPublished - 2004 11

    ASJC Scopus subject areas

    • 信号処理
    • コンピュータ グラフィックスおよびコンピュータ支援設計
    • 電子工学および電気工学
    • 応用数学

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