Analytical Solution of the Blind Identification Problem for Multichannel FIR Systems Based on Second Order Statistics

We present a novel method for the blind identification problem of multichannel FIR systems based on the analytical solution of a linear system of equations derived from the output signal second order statistics. The method is very efficient computationally since it does not involve iterative optimization procedures. In addition, it is very robust to noise as shown by our experiments. We also demonstrate that it compares favorably in terms of estimation accuracy compared to classical second order methods.