Reference Based Contrast Functions in a Semi-blind Context

  • Authors:
  • Marc Castella;Eric Moreau

  • Affiliations:
  • Institut TELECOM/ TELECOM & Management SudParis, UMR-CNRS 5157, Evry CEDEX, France 91011;University of Sud Toulon Var, ISITV, LSEET UMR-CNRS 6017, La Valette du Var CEDEX, France 83162

  • Venue:
  • ICA '09 Proceedings of the 8th International Conference on Independent Component Analysis and Signal Separation
  • Year:
  • 2009

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Abstract

We deal with blind signal extraction in the framework of a convolutive mixture of independent sources. Considering so-called reference signals, we generalize former identifiability conditions. Based on this result, we propose to incorporate some a priori information in the references. We show the validity of reference based contrast functions in two semi-blind situations. The results are confirmed by computer simulations.