Polarization-DOA estimation for conical conformal array antennas

The different orientations and polarization characteristics of elements in a conical conformal array, which are caused by the variable curvature of the platform, make the polarization diversity of the conformal array. Aiming at the polarization parameter estimation deficiency of the spatial super-resolution algorithm based on conformal array, the polarization diversity of the conical conformal array and the multiple signal classification (MUSIC) algorithm are combined to realize polarization parameters and 2D direction of arrival (DOA) estimation of the sources, the algorithm has less restriction on array distribution and is needless for parameter association. Moreover the performance of the joint parameters estimation algorithm is analyzed and the Cramer-Rao bound (CRB) is derived. The availability of the method is verified by computer simulation.