Peak-constrained least-squares design of IIR digital filters

Author

Netto, Sergio L. ; Diniz, Paulo S R

Author_Institution

COPPE, Univ. Fed. do Rio de Janeiro, Brazil

fYear

1998

fDate

5-6 Jun 1998

Firstpage

53

Lastpage

56

Abstract

An approach for approximating infinite duration impulse response (IIR) digital filters is proposed. The method is able to compromise maximum stopband attenuation and minimum stopband energy requirements. The approach is based on the weighted-least-squares (WLS) method with a weight function which is made constant within a given frequency interval at each iteration. In that sense, IIR digital filters with partially WLS-like and partially equiripple stopbands are efficiently designed

Keywords

Chebyshev filters; IIR filters; digital filters; least squares approximations; minimax techniques; network synthesis; Chebyshev method; IIR digital filters; Lawson method; Lim-Lee-Chen-Yang algorithm; approximation method; frequency interval; infinite duration impulse response; iteration; maximum stopband attenuation; minimax approach; minimum stopband energy; partially WLS-like stopbands; partially equiripple stopbands; peak-constrained least-squares design; weight function; weighted-least-squares method; Attenuation; Chebyshev approximation; Digital filters; Filter bank; Frequency response; IIR filters; Minimax techniques; Passband; Prototypes; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Digital Filtering and Signal Processing, 1998 IEEE Symposium on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-4957-1

Type

conf

DOI

10.1109/ADFSP.1998.685694

Filename

685694