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http://dx.doi.org/10.7840/KICS.2011.36C.7.451

Design of Zero-phase FIR Filters Through the Modeling and Analysis of A Frequency-domain Error Function  

Jeon, Joon-Hyeon (동국대학교 서울캠퍼스 공과대학 컴퓨터정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.7C, 2011 , pp. 451-458 More about this Journal
Abstract
Maximally flat (MAXFLAT) FIR filter design provides the advantage of giving a closed-form solution, but there still remains a problem of exactly and efficiently choosing the order of flatness for the accurate design of filters. This paper provides, through the modeling and analysis of a frequency-domain error function in the closed-form solution, how to determine the order of flatness. A proposed method, based on the frequency-domain error function, is accomplished by computing a minimum distance between its peak frequency and specified cutoff frequency. It is also shown that the proposed scheme is computationally efficient and accurate than the empirical formula given by Herrmann.
Keywords
MAXFLAT FIR; nonrecursive filter; zero-phase filter; FIR; digital filter;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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