Abstract: A Time Difference of Arrival/Angle of Arrival(TDOA/AOA) hybrid location scheme model is presented to solve the “hearing ability” problem in CDMA wireless location systems. The Unscented Kalman Filter(UKF) algorithm which is applied and simulated by using Matlab tools under the supposed circumstances. The final simulation results show that under the circumstances of TDOA/AOA hybrid location scheme, the UKF algorithm has better performances of convergence and precision than the common EKF.

Key words: wireless location, Unscented Kalman Filte(UKF) algorithm, Extended Kalman Filtering(EKF)

摘要： 针对CDMA无线定位系统中的“听力”问题，在CDMA无线系统中建立到达时间差/到达角度(TDOA/AOA)混合定位方案模型。针对常用滤波算法的性能改善问题，提出无迹卡尔曼滤波(UKF)算法解算定位方程，并结合设定环境对算法进行Matlab仿真。与常用EKF算法的比较表明，在TDOA/AOA混合定位方案中，UKF算法具有更好的收敛性和精度。

关键词: 无线定位, 无迹卡尔曼滤波算法, 扩展卡尔曼滤波

CLC Number: 

• TP312