摘要
针对地面辐射源目标的定位问题,提出一种TDOA/AOA联合定位算法。将一个传感器放置在地面上的一个固定平台上,测量辐射源相对于该传感器的方位角与俯仰角;将另一个传感器放置在一个运动的平台上,根据不同的时刻测量不同的时差量测值,进而建立求解目标位置估计值的最小二乘算法。仿真结果表明:该算法可以有效提高系统的定位精度,特别是TDOA的测量值应用得越多,则定位精度越高。
Aiming at the position problem of emitter on the ground, put forward a TDOA/AOA combined position algorithm. In this algorithm, one sensor can be placed on one fixed platform on the ground to measure the azimuth and pitch angle between this sensor and the emitter. The other sensor can be placed on one moving platform, and the different TDOA (Time Difference Of Arrival) can be measured at different time, then the LS (Least square) algorithm can be reached to solve the evaluated value of the emitter's position. The simulation results show that the algorithm can improve the position precision effectively, especially the more TDOA measurements are used, the more position precision is.
出处
《兵工自动化》
2010年第6期1-3,7,共4页
Ordnance Industry Automation
基金
国家自然科学基金(60874112)(基于尺度的综合导航系统信息融合方法研究)
"泰山学者"建设工程专项经费资助
关键词
TDOA
AOA
最小二乘解
联合定位算法
定位精度
TDOA
AOA
Least square solution (LS solution)
Combined position algorithm
Position precision