A new estimation formula for minimum filter length of optimum FIR digital filters

Author

Ichige, Koichi ; Iwaki, Mamoru ; Ishii, Rokuya

Author_Institution

Doctoral Program in Eng., Tsukuba Univ., Ibaraki, Japan

fYear

1998

fDate

1998

Firstpage

89

Abstract

This paper presents an accurate estimation formula for the minimum filter length of optimum (the minimax criterion-based) FIR low-pass digital filters. The authors have proposed an accurate estimation formula for the particular case that the passband and stopband ripples are identical. Now we expand the formula for the general case. The accuracy of the proposed formula is evaluated in comparison with that of the conventional formulae. We also describe how to apply the proposed formula for the design of other types of filters

Keywords

FIR filters; digital filters; low-pass filters; minimax techniques; minimisation; parameter estimation; signal processing; FIR filters; digital filters; estimation formula; low-pass digital filters; minimax criterion; minimum filter length; optimum filters; passband ripple; stopband ripple; Algorithm design and analysis; Cutoff frequency; Design optimization; Digital filters; Finite impulse response filter; Iterative algorithms; Iterative methods; Low pass filters; Minimax techniques; Passband;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-4325-5

Type

conf

DOI

10.1109/ICOSP.1998.770158

Filename

770158