Title :
Iterative differential decorrelation for nonstationary blind source separation
Author :
Ubaidulla, P. ; Ravikiran, N.
Author_Institution :
Central Res. Lab, Bharat Electron., Bangalore, India
fDate :
31 Aug.-4 Sept. 2004
Abstract :
In this work we address the problem of blind separation for the case where the sources are second-order non-stationary. The concept of differential correlation is used to capture the information contained in the time variation of the second order statistics of the source signals. We develop an iterative least squares algorithm based on the principle of correlation matching and the concept of differential correlation.
Keywords :
blind source separation; correlation methods; iterative methods; least squares approximations; statistical analysis; correlation matching; iterative differential decorrelation; iterative least squares algorithm; nonstationary blind source separation; second order statistics; second-order nonstationary source; Biomedical measurements; Blind source separation; Decorrelation; Electronic switching systems; Laboratories; Least squares methods; Signal processing algorithms; Source separation; Statistics; Wireless communication;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1452652
