An efficient localization method using bistatic range and AOA measurements in multistatic radar

This paper addresses the target localization problem in the three-dimensional (3D) space using the hybrid bistatic range (BR) and angle of arrival (AOA) measurements in multistatic radar. Based on the two-stage processing, an efficient closed-form solution to this nonlinear estimation problem is developed. The covariance matrix of the proposed solution is derived under small error condition. Theoretical analysis shows that the performance of the proposed method can reach the Cramer-Rao lower bound (CRLB) for Gaussian noise over small error region. Simulations are included to validate the performance of the proposed estimator.