A Procedure for Quasi-Equiripple Linear-Phase IIR Filters Design

被引：3
|
作者：
Konopacki, Jacek [1 ]
Moscinska, Katarzyna [1 ]
机构：
[1] Silesian Tech Univ, Inst Elect, Akad 16, PL-44100 Gliwice, Poland
来源：
INTERNATIONAL JOURNAL OF ELECTRONICS AND TELECOMMUNICATIONS | 2010年 / 56卷 / 04期
关键词：
Digital filters; IIR filters; filters design;
D O I：
10.2478/v10177-010-0052-x
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
The linear-phase IIR filters are described in many cases, mainly due to distortion-free transmission of signals. One of the major problems of IIR filter design is stability, which can be obtained with suitable value of group delay tau. This paper concerns calculation of filter order N and group delay tau in case of quasi-equiripple design of IIR filters. We propose a novel procedure for determining N and tau values; the procedure is valid for all types of filters with arbitrary number of zeros and a few non-zero poles. Evaluation of the proposed approach as well as examples illustrating its application are provided in the paper.
引用
收藏
页码：393 / 398
页数：6
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