DIRECT DESIGN OF APPROXIMATELY LINEAR-PHASE (ALP) 2-D IIR DIGITAL-FILTERS

被引：8

作者：

ANDERSON, MS

LAWSON, SS

机构：

[1] Department of Engineering, University of Warwick

来源：

ELECTRONICS LETTERS | 1993年 / 29卷 / 09期

关键词：

FILTERS; DIGITAL FILTERS;

D O I：

10.1049/el:19930537

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A fast design method is presented for approximately linear phase (ALP) 2-D IIR digital filters composed of a parallel connection of two allpass subfilters. The technique exploits the fact that the filter transform function depends on the phase of each subfilter. A closed form expression is derived for the phase and the filler coefficients of each subfilter are obtained by solving a set of overdetermined linear simultaneous equations.

引用

页码：804 / 805

页数：2

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