WIDE-BAND DOA ESTIMATION IN THE PRESENCE OF CORRELATED NOISE

Two new techniques are proposed for DOA estimation of wide-band signal s in the presence of spatially correlated noise field with unknown cov ariance matrix. These techniques do not require any a priori knowledge of the DOAs. These methods will cancel out uncorrelated singleton sig nals, but in a realistic passive sonar multipath scenario, there will be uncorrelated groups of correlated signals. The algorithms are appli cable in such a scenario. Simulation results comparing the performance of these algorithms with those of CSM-MUSIC algorithm are also presen ted.