Compressive sensing DOA estimation for active radar in forward-looking direction

The resolution of multiple targets at the same range but different angle in the forward-looking direction is of great trouble for active radar. Based on compressive sensing (CS) framework, a direction of arrival (DOA) estimation strategy for active radar in the forward looking direction is proposed, which can discriminate multiple unresolved targets using single-receiver channel. Radar returns are formulated as the measurements with respect to a sparse target scenario via the joint representation basis, and then the sparse scene is reconstructed using the single-receiver echoes. Numerical experiments show the effectiveness of the proposed strategy.