The blind separation of non-stationary signals by only using the second order statistics
نویسنده
چکیده
For the last 10 years, source separation has raised an increasing interest, partly because it has been discovered that space-time approaches will play an essential role in future radio communications" Lathauwer and Comon [1]. In the case of instantaneous mixture (memoryless mixture or channel), many algorithms are proposed to solve the blind separation problem. In general case (where no special assumption is assumed), the high order statistics (i.e fourth order) are used [2]. By adding special assumptions, algorithms and criteria can be simpli ed [3]. In this paper, we discuss and shortly present how the separation of non stationary signal can be done using only second order statistic.
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