A joint estimation method of azimuth, elevation, range and polarization for near field sources based on second order statistics

A method is presented for the estimation of range, elevation, azimuth and polarization parameters of near-field sources based on second order statistics. The method adopts centro-symmetric cross array, and every sensor consists of orthogonal dipole-pairs with the same coordinate axis direction, and constructs eight second order statistics matrixes by receiving polarized array data, and estimates the parameters of near field according to the subspace decompositions. The method does not require any spectral peak search and easy parameter pairing only.