Title :
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
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;
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
DOI :
10.1109/TFSA.1998.721440
