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Design of Zero-phase FIR Filters Through the Modeling and Analysis of A Frequency-domain Error Function
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 Title & Authors
Design of Zero-phase FIR Filters Through the Modeling and Analysis of A Frequency-domain Error Function
Jeon, Joon-Hyeon;
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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.
MAXFLAT FIR;nonrecursive filter;zero-phase filter;FIR;digital filter;
 Cited by
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