Design of stable IIR filters in the complex domain by automatic delay selection

Author

Vuerinckx, R. ; Rolain, Y. ; Schoukens, J. ; Pintelon, R.

Author_Institution

ELEC Dept., Vrije Univ., Brussels, Belgium

Volume

3

fYear

1996

fDate

7-10 May 1996

Firstpage

1379

Abstract

A major problem when designing infinite impulse response (IIR) filters in the complex domain is ensuring that the filter is stable, especially when the IIR filter approximates the inverse of a non-minimum phase system, as is often the case for equalisation filters. Adding delay to the target frequency response can result in a stable filter, but up to now selecting that delay has been a matter of trial and error. This paper presents an automated method for finding this delay

Keywords

IIR filters; circuit stability; delays; digital filters; equalisers; filtering theory; frequency response; automatic delay selection; complex domain; equalisation filters; frequency response; infinite impulse response filters; inverse nonminimum phase system; stable IIR filter design; Added delay; Algorithm design and analysis; Approximation methods; Delay effects; Finite impulse response filter; Frequency response; H infinity control; IIR filters; Poles and zeros; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.543917

Filename

543917