Evaluating expectation-maximization algorithm for 2D DOA estimation via planar antenna arrays

Abstract

The paper is devoted direction-of-arrival (DOA) estimation in case of planar antenna arrays relating to azimuth and elevation source location. We investigate circular antenna array which is well known and studied and additionally compare it with L and curved shapes. As the methods of DOA estimation stochastic maximum likelihood (SML) and expectation-maximization (EM) algorithms are studied.