A new structure for adaptive IIR filters with guaranteed stability

Author

Zhou, Jiong ; Li, Gang

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

Volume

2

fYear

2005

Lastpage

690

Abstract

In this paper, a new condition, with which the bounded-input bounded-output (BIBO) stability of the adaptive filters can be ensured, is derived. Based on this result, a new structure for adaptive IIR filters is proposed. The basic feature of this structure is to cascade the denominator of the IIR filter transfer function with a set of 2nd-order sub-filters that are implemented with a normal state-space realization. Simulations are given to support the theoretical results and to compare the performance of the proposed structure with that of the classical direct-form II structure.

Keywords

IIR filters; adaptive filters; circuit stability; state-space methods; transfer functions; BIBO stability; adaptive IIR filters; bounded-input bounded-output stability; digital filters; filter transfer function denominator; guaranteed stability filters; normal state-space realization; second-order sub-filters; Adaptive filters; Cellular neural networks; Convergence; Error correction; IIR filters; Lattices; Least squares approximation; Numerical stability; Propulsion; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on

Print_ISBN

0-7803-9015-6

Type

conf

DOI

10.1109/ICCCAS.2005.1495206

Filename

1495206