An improved polarization and DOA estimation algorithm

Abstract

In order to reduce the computation complexity during the multi-dimension iterative search of the MUSIC algorithm used to estimate the polarization and DOA of incident signal, an improved algorithm for estimating the polarization and DOA is proposed based on a polarization sensitive uniform array. Firstly, the polarization and DOA of the incident signal are coarsely estimated by a beam forming method based on FFT operation, then the traditional MUSIC algorithm is adapted to get the multi-dimension iterative search. By this method, the searching area for the multi-dimension full space is reduced to a smaller size, and the computation complexity is effectively reduced. The availability of the algorithm has been verified by the simulation.