Complex Approximation of FIR Digital Filters by Updating Desired Responses

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

研究成果: Article査読

6 被引用数 (Scopus)

抄録

In this correspondence, we present a new numerical method for the complex approximation of FIR digital filters. Our objective is to design FIR filters whose absolute error between the designed and desired response is equiripple. The proposed method solves the least-squares 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. Moreover, by multiplying the arbitrary weighting function on the desired response of the passband and stopband, the errors in the passband and the stopband can be controlled. We show some examples to illustrate the advantages of our proposed methods.

本文言語English
ページ(範囲)2948-2953
ページ数6
ジャーナルIEEE Transactions on Signal Processing
53
8
DOI
出版ステータスPublished - 2005 8

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

フィンガープリント 「Complex Approximation of FIR Digital Filters by Updating Desired Responses」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル