A UNIFIED AND EFFICIENT LEAST-SQUARES DESIGN OF LINEAR-PHASE NONRECURSIVE FILTERS

被引：11
|
作者：
RAMACHANDRAN, RP
SUNDER, S
机构：
[1] Department of Electrical Engineering, Caip Center, Rutgers University, Piscataway, NJ 08855-1390, Freylinghuysen Road
[2] Department of Electrical and Computer Engineering, Concordia University, Montreal
来源：
SIGNAL PROCESSING | 1994年 / 36卷 / 01期
关键词：
LEAST SQUARES; LINEAR PHASE; NONRECURSIVE; EFFICIENT; FILTERS;
D O I：
10.1016/0165-1684(94)90177-5
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 method is described which can be used to design a wide class of nonrecursive linear-phase filters including those with arbitrary magnitude specifications and with time-domain constraints. The approach is based on formulating the weighted mean-square error between the amplitude responses of the practical and ideal filters as a quadratic function. The filter coefficients are obtained by solving a set of linear equations. This method leads to a lower weighted mean-square error and is computationally more efficient than both the eigenfilter method and the method based on the Remez exchange algorithm. However, the main advantage of our method lies in its computational efficiency. Design examples of many different types of filters are provided.
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页码：41 / 53
页数：13
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