Robust improvement of unmasking capabilities of iterative LMMSE filtering

A general aim in radar processing is to allow for target separation. Several advanced techniques have been developed to fulfill this aim. Nevertheless they pose a heavy constraint on the signal reference known at the receiver, and degrade their performance when this reference is incorrect. This paper addresses the problems that rise when there is a discrepancy between the echoing signal and the signal reference used in the processing. A technique is then developed to counteract the degradation of the performance.