Design of linear-phase IIR filters via impulse-response gramians

Author

Sreeram, Venkatappa ; Agathoklis, Panos

Author_Institution

Dept. of Electr. & Electron. Eng., Western Australia Univ., Perth, WA, Australia

Volume

40

Issue

2

fYear

1992

fDate

2/1/1992 12:00:00 AM

Firstpage

389

Lastpage

394

Abstract

A new method for the design of a linear-phase infinite-impulse-response (IIR) filter is presented. It involves designing a finite-impulse-response (FIR) filter satisfying the given frequency response specifications and subsequently obtaining a significantly lower order IIR filter using model reduction based on impulse-response gramians. The general outline of the method and a brief overview of the existing linear-phase FIR filter design and model-reduction techniques are presented. The impulse-response gramian and the model-reduction algorithm used are presented. The method is illustrated by design examples and is compared with other methods for the design of linear-phase IIR filters using equalizers

Keywords

digital filters; filtering and prediction theory; frequency response; frequency response; impulse-response gramians; infinite-impulse-response; linear-phase FIR filter; linear-phase IIR filters; model reduction; Delay; Design methodology; Digital filters; Digital signal processing; Finite impulse response filter; Fourier series; Frequency response; Helium; IIR filters; Passband;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.124948

Filename

124948