Egalisation aveugle, application pour des canaux de transmission

Abstract : The work of this thesis deals with the equalization of the transmission channels for a single-carrier and multi-carrier modulation. In the context of equalization, we focus precisely on the blind equalization. First, we give a description of various elements constituting a communication chain, a description of different types of single-carrier modulations and a description of a multi-carrier modulation (OFDM). Then, we give an overview of the blind equalization methods for a single-carrier modulation. We propose subsequently a blind equalization algorithm in the presence of a bounded perturbation. Next, we provide stability and convergence analysis of the proposed method. In the context of multi-carrier modulation, we first present an overview of the blind equalization techniques for the OFDM system. Next, we adapt the proposed method for the OFDM system under multipath channels, especially the Raleigh and the Rice channels. Performance of the proposed algorithm have been illustrated in simulation by considering many examples throughout this thesis.
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Ali Moussa. Egalisation aveugle, application pour des canaux de transmission. Automatique / Robotique. Normandie Université; Université de Gabès (Tunisie), 2018. Français. ⟨NNT : 2018NORMC267⟩. ⟨tel-02159550⟩



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