Design of nearly linear phase IIR digital filters with prescribed log magnitude response

Masahiro Okuda, Masaaki Ikehara, Shin ichi Takahashi

    研究成果: Paper査読

    1 被引用数 (Scopus)

    抄録

    In this paper, we propose a new design algorithm for nearly linear phase IIR digital filters with prescribed log magnitude response. The error function used here is the sum of the weighted log magnitude-squared error and phase-squared error, and so it is possible to control log magnitude and phase response directly. The gradient vector of the proposed error function is easily calculated as the closed form solution because of its nature, in which the real and imaginary part of the logarithm of a complex transfer transfer function corresponds to the log magnitude and phase response, respectively. This algorithm is simple and converges quickly. Finally, we show the validity of the proposed algorithm with some examples.

    本文言語English
    ページ631-634
    ページ数4
    出版ステータスPublished - 1996 12 1
    イベントProceedings of the 1996 IEEE 39th Midwest Symposium on Circuits & Systems. Part 3 (of 3) - Ames, IA, USA
    継続期間: 1996 8 181996 8 21

    Other

    OtherProceedings of the 1996 IEEE 39th Midwest Symposium on Circuits & Systems. Part 3 (of 3)
    CityAmes, IA, USA
    Period96/8/1896/8/21

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • 電子工学および電気工学

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