Adaptive IIR filtering using cascade structures

Author

Rao, Bhaskar D.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA

fYear

1993

fDate

1-3 Nov 1993

Firstpage

194

Abstract

This paper studies the use of cascade form filter structures for implementing adaptive IIR filters. An efficient scheme for the computation of the gradient is developed. This greatly simplifies the complexity of the adaptive algorithms for cascade implementation of adaptive IIR filters. Issues related to the convergence of the adaptive cascade filter, and computational complexity reduction via alternate mixed form implementations are explored. The application of the cascade IIR adaptive filter for enhancing narrowband/sinusoidal signals in noise is also considered. Simulation results are presented to support the observations

Keywords

IIR filters; adaptive filters; cascade networks; computational complexity; convergence of numerical methods; filtering theory; adaptive IIR filtering; adaptive algorithms; cascade IIR adaptive filter; cascade structures; computational complexity reduction; convergence; gradient; mixed form implementations; narrowband signals; noise; simulations; sinusoidal signals; Adaptive algorithm; Adaptive filters; Computational complexity; Computational modeling; Convergence; Filtering; Finite impulse response filter; IIR filters; Narrowband; Signal processing algorithms; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1993. 1993 Conference Record of The Twenty-Seventh Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

0-8186-4120-7

Type

conf

DOI

10.1109/ACSSC.1993.342498

Filename

342498