Quasi-equiripple approximation of minimum phase FIR filters by updating desired response

M. Okuda, I. R. Khan, M. Ikehara, S. Takahashi

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The authors present a new numerical method for the Chebyshev approximation of minimum phase FIR digital filters. This method is based on solving a least squares (LS) problem iteratively. At each iteration, the desired response is transformed so as to have an equiripple magnitude error. This method makes it possible to design minimum phase FIR filters whose magnitude error is quasi-equiripple. Using this method, a quasi-equiripple solution is obtained very quickly. Since the proposed methods do not require any time-consuming optimisation procedure, they require less computational complexity than conventional methods. Finally, some examples to illustrate the advantage of the proposed methods are shown.

本文言語English
ページ(範囲)164-169
ページ数6
ジャーナルIEE Proceedings: Vision, Image and Signal Processing
151
3
DOI
出版ステータスPublished - 2004 6

ASJC Scopus subject areas

  • 信号処理
  • 電子工学および電気工学

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