DocumentCode
917856
Title
Precise Filter Design [DSP Tips & Tricks]
Author
Berchin, Greg
Volume
24
Issue
1
fYear
2007
Firstpage
137
Lastpage
139
Abstract
In this article, we describe an obscure but simple and powerful method for designing a digital filter that approximates an arbitrary magnitude and phase response. Called frequency-domain least-squares (FDLS) method, it can create a filter roughly comparable in computational burden and latency to that created by the bilinear transform method, with fidelity approaching that of fast convolution. In addition, the FDLS method can be applied to a wide variety of other system identification tasks
Keywords
digital filters; frequency-domain analysis; least squares approximations; matrix algebra; network synthesis; transforms; arbitrary magnitude; bilinear transform method; digital filter design; frequency-domain least-squares; phase response; precise filter design; Convolution; Delay; Digital filters; Digital signal processing; Equations; Frequency; Linear algebra; Matched filters; Matrices; Transfer functions;
fLanguage
English
Journal_Title
Signal Processing Magazine, IEEE
Publisher
ieee
ISSN
1053-5888
Type
jour
DOI
10.1109/MSP.2007.273077
Filename
4049924
Link To Document