Design of IIR digital filters using all-pass networks

Masaaki Ikehara, Hiroyuki Tanaka, Masaaki Ikehara

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

THis paper presents a new method of designing the generalized IIR digital filter in the form of a parallel connection of two all-pass filters. It is shown that the numerator of the overall transfer function of this form can be expressed as real function of the all-pass coefficients. The Remez algorithm is applied to the numerator and the rational approximation problem is transformed into a linear problem. IIR digital filters with the desired specification can be directly designed in the z-domain by this method. This proposed algorithm converges through a few iterations, and the amplitude property of IIR digital filter has equiripple.

Original languageEnglish
Pages (from-to)231-235
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing
Volume41
Issue number3
DOIs
Publication statusPublished - 1994 Mar

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IIR filters
Digital filters
All-pass filters
Transfer functions
Specifications

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

Design of IIR digital filters using all-pass networks. / Ikehara, Masaaki; Tanaka, Hiroyuki; Ikehara, Masaaki.

In: IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, Vol. 41, No. 3, 03.1994, p. 231-235.

Research output: Contribution to journalArticle

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