Source separation based on second order statistics: An algebraic approach

Abstract

this paper is a blockmethod based on second-order statistics of the measurement data only. The parameters of the inverse filter are to be found such that the resulting filtered output signals y 1 (t) and y 2 (t) have zero cross-covariance function. Assuming a certain filter structure, the resulting conditions take the form of bilinear equations. The usual approach at this point is to set up a cos