A Novel Low Complexity CS-Based DOA Estimation Technique

This paper proposes a new compressive sensing (CS)-dependent direction of arrival (DOA) estimation technique based on beam-space (BS) processing. Two techniques have been proposed, namely, full beam-space (FBS) as well as multiple beam-space (MBS), and investigated versus the ordinary element-space (ES) technique in a CS-based framework. Both proposed plans will identify more source signals than the number of sensors used, without requiring a priori knowledge of the number of source signs to be evaluated. The exhibition of the proposed methods is contrasted with that of the ES-based strategy.