A New Method of Fixed Single Observer Passive Location Based on Phase Difference Rate-of-Change

Aimed at the disadvantages of DFRC method such as low observability and big relative error, so this paper accedes phase difference rate-of-change, put forward the DPFRC method. Combined with the extended Kalman filter (EKF) and unscented Kalman filter (UKF) algorithm, this paper proved the advantages of the UKF algorithm which applied to DPFRC method verified with the computer simulation.