Blind Joint Stationary Correlated Sources Separation Using Second-Order Statistics

The separation of unobserved sources from mixed observed data is a fundamental signal processing problem. Most proposed techniques for solving this problem rely on independence or at least uncorrelation assumption of source signals. This paper introduces a technique for cases that source signals are correlated with each other. The method uses Wold decomposition principle for extracting desired and proper information from the predictable part of the observed data, and exploits approaches based on second-order statistics to estimate the mixing matrix and sourcesignals. Simulation results are provided to illustrate the effectiveness of the method.

Keywords:

blind source separation , wold decomposition , second-order statistics