Title :
A consideration of blind source separation using wavelet transform
Author :
Hirai, Noriyuki ; Matsumoto, Hiroki ; Furukawa, Toshihiro ; Furuya, Kiyoshi
Author_Institution :
Dept. of Inf. Eng., Chuo Univ., Tokyo, Japan
Abstract :
We propose a new method of blind source separation for convolutive mixtures. We use a wavelet transform which can get information from the two sides of time and frequency when we change the observed signals into the time-frequency domain. Our idea is to use a new estimation equation of the separating matrix for time delay. We aim to improve the separation performance. We show the result of desktop simulation of artificially controlled data.
Keywords :
blind source separation; delays; matrix algebra; parameter estimation; time-frequency analysis; wavelet transforms; blind source separation; convolutive mixtures; estimation equation; separating matrix; time delay; time-frequency domain; wavelet transform; Blind source separation; Delay effects; Delay estimation; Engineering management; Frequency estimation; Independent component analysis; Source separation; Technology management; Time frequency analysis; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465937
