A nearly optimum linear-phase digital FIR filters design

被引：10
|
作者：
Joaquim, Marcelo Basilio [1 ]
Lucietto, Carlos A. S. [2 ]
机构：
[1] Univ Sao Paulo, Sch Engn Sao Carlos, Dept Elect Engn, BR-13566590 Sao Carlos, SP, Brazil
[2] DPF RP SP, Sao Paulo, Brazil
来源：
DIGITAL SIGNAL PROCESSING | 2011年 / 21卷 / 06期
关键词：
Digital filters; FIR; Linear phase; Optimization; Steepest-descent method;
D O I：
10.1016/j.dsp.2011.01.012
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 new simple method to design linear-phase finite impulse response (FIR) digital filters, based on the steepest-descent optimization method, is presented in this paper. Starting from the specifications of the desired frequency response and a maximum approximation error a nearly optimum digital filter is obtained. Tests have shown that this method is alternative to other traditional ones such as Frequency Sampling and Parks-McClellan, mainly when other than brick wall frequency response is required as a desired frequency response. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码：690 / 693
页数：4
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