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Séparation aveugle de sources dans les systèmes de communication MIMO

Abstract : In this thesis we consider the problem of blind source separation in Multiple Input Multiple Output (MIMO) communication systems. We are interested in the case of independent source signals, which are transmitted over a linear, instantaneous or convolutive and time invariant MIMO channel. Firstly, we present some useful tools for blind source separation. Afterwards, we consider the case of an instantaneous MIMO channel. We propose a new constant modulus algorithm based on complex Givens rotations. An extension of the constant norm algorithm to MIMO case is also proposed, where three other algorithms are derived from the general criterion. Finally, we consider the case of a convolutive MIMO channel. We propose a new algorithm that allows the control of the delay with which the source signals are recovered. Moreover, the convergence study of this new criterion is carried out.
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https://tel.archives-ouvertes.fr/tel-00355164
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Submitted on : Thursday, January 22, 2009 - 11:52:09 AM
Last modification on : Wednesday, April 27, 2022 - 3:51:03 AM
Long-term archiving on: : Tuesday, June 8, 2010 - 9:03:59 PM

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  • HAL Id : tel-00355164, version 1

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Aissa Ikhlef. Séparation aveugle de sources dans les systèmes de communication MIMO. Traitement du signal et de l'image [eess.SP]. Université Rennes 1, 2008. Français. ⟨tel-00355164⟩

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