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视线坐标系带多普勒观测的雷达目标跟踪
引用本文:祝依龙,范红旗,付强.视线坐标系带多普勒观测的雷达目标跟踪[J].雷达科学与技术,2009,7(3):200-204.
作者姓名:祝依龙  范红旗  付强
作者单位:国防科技大学ATR国家重点实验室,湖南长沙,410073
摘    要:雷达观测量与目标状态呈非线性关系,使目标跟踪成为非线性滤波问题,目标状态估计精度与跟踪滤波算法复杂度成了一对不可调和的矛盾。提出了在视线坐标系中建立观测方程,将笛卡尔坐标系中的目标运动方程转换到视线坐标系中,使得雷达观测量尤其是多普勒速度观测与目标状态呈线性关系,并推导得到了该坐标系下的卡尔曼滤波算法,比较了与标准卡尔曼滤波算法的不同。仿真结果表明,该算法不仅能改善跟踪滤波效果,还明显降低了算法复杂度,节省了运算时间。

关 键 词:多普勒观测  目标跟踪  卡尔曼滤波  视线坐标系

Radar Target Tracking with Range-Rate Measurement in Line-of-Sight Cartesian Coordinate System
ZHU Yi-long,FAN Hong-qi,FU Qiang.Radar Target Tracking with Range-Rate Measurement in Line-of-Sight Cartesian Coordinate System[J].Radar Science and Technology,2009,7(3):200-204.
Authors:ZHU Yi-long  FAN Hong-qi  FU Qiang
Affiliation:ATR State Key Lab;National University of Defense Technology;Changsha 410073;China
Abstract:The radar measurements are nonlinear with target state variables,and thus target tracking is actually a nonlinear filtering problem.The state estimation precision and the computation complexity of tracking algorithms are always in contradictory.The measurement equation is built in the line-of-sight Cartesian coordinate system(LCCS) in the paper.The target dynamic model is built in radar Cartesian coordinate system(RCCS) and then converted into the LCCS.Therefore,the radar measurements especially the range-r...
Keywords:range-rate measurement  target tracking  Kalman filtering  line-of-sight Cartesian coordinate system  
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