Robust whitening procedure in blind source separationcontext
- 23 November 2000
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 36 (24) , 2050-2051
- https://doi.org/10.1049/el:20001436
Abstract
An efficient algorithm is presented for robust whitening in the presence of temporally uncorrelated additive noise that may be spatially correlated. This whitening is introduced as a pre-processing step in the blind source separation process. The robust whitening consists in the eigenvalue decomposition of a positive definite linear combination of a set a correlation matrices taken at nonzero lags. The coefficients of the linear combination are computed by a finite step global convergence algorithm. Some numerical simulations are provided to illustrate the effectiveness of the solution.Keywords
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