Separation of a Mixture of Signals Using Linear Filtering and Second Order Statistics
Ana Maria Tomé · 2002
Abstract. Some recent works address the problem of blind source separation with a matrix pencil. In this paper we show that the covariance matrices of the pencil can be computed at the output of a simple linear filter instead of using time-delayed covariance matrices. It is also shown, using block matrix manipulation, that the method might applied when the number of source signals is not equal to the number of mixed signals. An experimental study, comparing different strategies of computing the matrix pencil, is also presented. 1