A flexible structure for wavelet packet-based subband adaptive equalization

Author

Prelcic, N. González ; González, A. B Mosquera ; González, F. Pérez

Author_Institution

ETSI Telecomunicacion, Vigo Univ., Spain

fYear

1998

Firstpage

377

Lastpage

380

Abstract

We propose a new technique for subband adaptive equalization of highly correlated time-varying signals. The main contribution of the work consists of a tree selection algorithm that leads, for a fixed number of bands, to a quasi optimum convergence rate of the adaptive filters in the different subbands. We also provide a detailed analysis of the behaviour of the subband scheme and verify experimentally the efficiency of the proposed scheme; moreover, we compare its overall performance to that of NLMS and RLS in the time domain

Keywords

adaptive equalisers; adaptive filters; adaptive signal processing; convergence of numerical methods; correlation methods; filtering theory; time-domain analysis; wavelet transforms; NLMS; RLS; adaptive filters; correlated time-varying signals; efficiency; flexible structure; performance; quasi optimum convergence rate; time domain; tree selection algorithm; wavelet packet-based subband adaptive equalization; Adaptive equalizers; Adaptive filters; Convergence; Eigenvalues and eigenfunctions; Filter bank; Filtering algorithms; Flexible structures; Resonance light scattering; Wavelet packets; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Time-Frequency and Time-Scale Analysis, 1998. Proceedings of the IEEE-SP International Symposium on

Conference_Location

Pittsburgh, PA

Print_ISBN

0-7803-5073-1

Type

conf

DOI

10.1109/TFSA.1998.721440

Filename

721440