Separation of instantaneous mixtures of cyclo-stationary sources

Authors:
Pierre Jallon;Antoine Chevreuil
Affiliations:
Equipe Signal et Communications, Institut Gaspard Monge, University of Marne-la-vallée, UMR 8049 CNRS IGMLabInfo, France;Equipe Signal et Communications, Institut Gaspard Monge, University of Marne-la-vallée, UMR 8049 CNRS IGMLabInfo, France
Venue:
Signal Processing
Year:
2007

Citing 7
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Abstract

It has been observed that, generally, the Comon algorithm successfully achieves to separate instantaneous mixtures of non-stationary signals, despite it has been designed for stationary environments. We address the theoretical justification of this fact. We provide a tractable condition on the statistics of the sources ensuring that the Comon function is a contrast. This condition is worked out for various digital communication signals. We finally explain why the Comon and JADE algorithms remain strongly connected in a cyclo-stationary context.