Joint DOA, Range and Polarization Estimation of Near-Field Sources using Second Order Statistics

In this paper, the joint estimation of direction-of-arrival (DOA), range and polarization of near field sources is investigated. The uniform linear array (ULA) consists of orthogonal dipole-pairs, which measure the x-axis and y-axis components of the electric field of the polarized signals. Without spectral peak searching, the proposed algorithm gives a closed-form solution. Because using only second order statistics, this method reduces the calculating burden. Some numerical simulations illustrate the effectiveness of the proposed algorithm