Algorithm for jointly estimating 2-D direction-of-arrival and polarization of wideband cyclostationary sources

Based on a uniform circular array (UCA) of trimmed vector sensors, a new algorithm was proposed for the two-dimension (2-D) direction-of-arrival and polarization estimation of wideband cyclostationary sources. By sufficiently utilizing the cyclostationarity of the signals and array manifold of UCA, the proposed method could be employed to both wideband and narrowband cases, and could distinguish the closely-spaced sources by exploiting their polarization diversity. Besides, the proposed algorithm has the capability of suppressing additive noise and wideband interference, and the 2-D DOA and polarization can be automatically paired without spectral peak searching. Simulations illustrate the efficacy of the algorithm.