A blind source separation technique using second-order statistics

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Authors A. Belouchrani, K. Abed-Meraim, Jean-Fran├žois Cardoso, E. Moulines
Journal/Conference Name IEEE Transactions on Signal Processing
Paper Category
Paper Abstract Separation of sources consists of recovering a set of signals of which only instantaneous linear mixtures are observed. In many situations, no a priori information on the mixing matrix is available The linear mixture should be "blindly" processed. This typically occurs in narrowband array processing applications when the array manifold is unknown or distorted. This paper introduces a new source separation technique exploiting the time coherence of the source signals. In contrast with other previously reported techniques, the proposed approach relies only on stationary second-order statistics that are based on a joint diagonalization of a set of covariance matrices. Asymptotic performance analysis of this method is carried out; some numerical simulations are provided to illustrate the effectiveness of the proposed method.
Date of publication 1997
Code Programming Language Python
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