Simultaneous estimation of 2-D DOA and polarization of multiple coherent sources using an electromagnetic vector sensor array
Zhiwen Liu · Journal of China Institute of Communications · 2004
This paper studies the problem of simultaneous estimation of two-dimensional directions- of-arrival (DOA) and polarizations of multiple coherent sources using redundant spatial coherence structure potentially possessed by an electromagnetic (EM) vector sensor array. This paper shows versatile realizations of spatial smoothing technique through distinct ways of sub-array grouping and dividing by which several MUSIC and ESPRIT variants are presented. The paper further provides sufficient conditions under which the given methods can tackle the coherence problem successfully. Simulation results are also included to verify the efficacy of the proposed methods.