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Blind separation of nonstationary sources

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4 Author(s)
Belouchrani, A. ; Electr. Eng. Dept., Ecole Nat. Polytechnique, Algiers, Algeria ; Abed-Meraim, K. ; Amin, M.G. ; Zoubir, A.M.

We propose a blind separation technique for nonstationary sources that exploits both auto-terms and cross-terms of the time-frequency distributions. The technique is based on the simultaneous joint diagonalization and off-diagonalization of spatial time-frequency distributions. Computer simulations demonstrate the superiority of the approach in comparison with other time-frequency based methods.

Published in:

Signal Processing Letters, IEEE  (Volume:11 ,  Issue: 7 )