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- W2183858639 abstract "In this paper we address the issue of Orthogonal Techniques for Blind Source Separation of periodic signals when the mixtures are corrupted with spatially correlated noises. The noise covariance matrix is assumed to be unknown. This problem is of major interest with experimental signals. We first remind that the Principal Components Analysis (PCA), cannot provide a correct estimate of the signal subspace when the noises are spatially correlated or when their power spectral densities are different. We then introduce a new estimator of the unnoisy spectral matrix using delayed blocks,. The only assumption is that the noise correlation and crosscorrelation lengths must be shorter than the source correlation lengths. Simulation results show the efficiency of the new method." @default.
- W2183858639 created "2016-06-24" @default.
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- W2183858639 date "1998-01-01" @default.
- W2183858639 modified "2023-09-27" @default.
- W2183858639 title "IMP~~~I~G SIGNAL SUBSPACE EST1 SOURCE SEPAR~TI~~ IN THE CONTEXT OF SPATIALLY CORRELATED NOISES." @default.
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