Efficient lattice realizations of adaptive IIR algorithms

Author

Netto, Sergio Lima ; Agathoklis, Panajotis

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

Volume

46

Issue

1

fYear

1998

fDate

1/1/1998 12:00:00 AM

Firstpage

223

Lastpage

227

Abstract

Computationally efficient adaptive IIR-filter algorithms are presented based on lattice realizations allowing the adaptive filter stability to be easily monitored. New simplified recursive-in-order equations relating the parameters of the direct-form realization with the ones of two lattice realizations are presented. These equations lead to a simplified technique to compute the regressor vector and to a general method to implement any adaptive IIR algorithm using lattice realization. Results indicate that the proposed lattice-based algorithms converge to a set of parameters that realize the same transfer function as the corresponding direct-form algorithms

Keywords

IIR filters; adaptive filters; convergence of numerical methods; lattice filters; recursive filters; IIR-filter algorithms; adaptive IIR algorithms; adaptive filter stability; convergence; direct-form algorithms; direct-form realization; efficient lattice realizations; lattice-based algorithms; recursive-in-order equations; regressor vector; transfer function; Adaptive filters; Computational complexity; Convergence; Equations; Finite impulse response filter; IIR filters; Lattices; Signal processing algorithms; Stability; Transfer functions;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.651222

Filename

651222