Blind Paraunitary Equalization

Abstract : In this paper a blind MIMO space-time equalizer is described, dedicated to convolutive mixtures when observations have been pre-whitened. Filters preserving space-time whiteness are paraunitary; a parameterization of such filters is proposed. Theoretical developments then lead to a numerical algorithm that sweeps all pairs of delayed outputs. This algorithm involves the solution of a polynomial system, whose coefficients depend on the output cumulants. Simulations and performance of the numerical algorithm are reported.
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Submitted on : Tuesday, January 20, 2009 - 4:35:27 PM
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Sylvie Icart, Pierre Comon, Ludwig Rota. Blind Paraunitary Equalization. Signal Processing, Elsevier, 2009, 89 (3), pp.283-290. ⟨10.1016/j.sigpro.2008.08.014⟩. ⟨hal-00354719⟩

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