Accurate estimation of minimum filter length for optimum FIR digital filters

Author

Ichige, Koichi ; Iwaki, Mamoru ; Ishii, Rokuya

Author_Institution

Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan

Volume

47

Issue

10

fYear

2000

fDate

10/1/2000 12:00:00 AM

Firstpage

1008

Lastpage

1016

Abstract

This paper presents an accurate estimation formula of minimum filter length for optimum (minimax criterion based) linear-phase finite impulse response (FIR) low-pass digital filters. Two estimation formulae have been already proposed; however, they have some problems which lead to wrong estimation. Discussing the problems based on our experimental results, a new estimation formula is newly proposed. The accuracy of the proposed formula is evaluated in comparison with that of the conventional formulae. Furthermore, the proposed formula is applied to the design of high-pass, band-pass, and band-stop filters. The estimation accuracy is discussed also in this case

Keywords

FIR filters; band-pass filters; band-stop filters; circuit optimisation; digital filters; high-pass filters; linear phase filters; low-pass filters; minimax techniques; band-pass filters; band-stop filters; estimation accuracy; estimation formula; estimation formulae; high-pass filters; linear-phase finite impulse response filters; low-pass digital filters; minimax criterion based; minimum filter length; optimum FIR digital filters; Algorithm design and analysis; Band pass filters; Design optimization; Digital filters; Finite impulse response filter; Frequency; Iterative algorithms; Low pass filters; Minimax techniques; Passband;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.877143

Filename

877143