Design and Application of Allpass Filters with Equiripple Group Delay Errors

被引：0
|
作者：
Lai, Xiaoping [1 ]
Lin, Zhiping [2 ]
机构：
[1] Hangzhou Dianzi Univ, Inst Informat & Control, Hangzhou 310018, Zhejiang, Peoples R China
[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
来源：
2013 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) | 2013年
关键词：
allpass filter; halfband filter; weighted minimax design; equiripple design; IIR DIGITAL-FILTERS;
D O I：
暂无
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：
Allpass filters have found many applications in signal processing areas. In this paper, an iterative linear programming (LP) algorithm is first presented to solve the minimax phase error design of allpass filters. Then an iterative weighted minimax (WMM) method is presented to design allpass filters with equiripple group delay errors. Finally, the iterative WMM method is applied to the design of allpass-filter-based halfband filters with equiripple constant group delays. Design examples demonstrate that the new iterative LP algorithm is very efficient for the minimax allpass filter design, and the iterative WMM method is very effective for the equiripple constant group delay designs of allpass filters and allpass-filter-based halfband filters.
引用
收藏
页码：2924 / 2927
页数：4
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