Title :
Wavelet domain natural gradient algorithm for blind source separation of non-stationary sources
Author :
Jafari, M.G. ; Chambers, J.A.
Author_Institution :
Centre for Digital Signal Process. Res., King´´s Coll., London, UK
fDate :
7/4/2002 12:00:00 AM
Abstract :
A wavelet domain approach to blind source separation which avoids the permutation problem in transfer domain operation, and yields improved convergence rate for certain non-stationary signals, is introduced. The wavelet transform also facilitates noise reduction, further improving performance of the natural gradient algorithm
Keywords :
gradient methods; signal sources; wavelet transforms; blind source separation; nonstationary signal; wavelet domain natural gradient algorithm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020479
