Joint Polarization and Angle Estimation for Robust Multi-Target Localization in Bistatic MIMO Radar

摘要

In the paper, we propose a novel algorithm usingjoint polarization and angle information for robust andhigh-resolution multi-target localization in bistatic multipleinputmultiple-output (MIMO) radar system. The proposedalgorithm exploits the singular value decomposition (SVD)of cross-correlation matrix of the received data from twotransmitter subarrays to obtain robust performance in noise.Polarization sensitive array-based ESPRIT technologies areemployed to estimate the direction of departure (DOD), thedirection of arrival (DOA) and the polarization parameters.The Cramer-Rao bounds (CRBs) are given. In the method,the closely spaced targets can be well distinguished bypolarization diversity. Also, the DODs, DOAs, andpolarizations of multiple targets can be well paired. Thesimulation results demonstrate that the proposed algorithmcan work well and achieve high-resolution identification androbust localization of multiple targets.