基于无迹卡尔曼滤波的高纬度超视距目标跟踪方法

摘要

In the traditional OTH target tracking,the target position information is transformed to the right angle coordinate system which the origin of it is the fusion center,aiming at the problem of target location information error caused by the use of this method in high latitude area,the transformation of the target information to the transverse earth coordinate is proposed,on the basis of this,the target motion model,the target observation model and the OTH target tracking model based on UKF are constructed,the results of simulation analysis show that,the method proposed in this paper can improve the tracking accuracy of the OTH target in high latitude area,it can meet the requirements of the information accuracy of the OTH target in the naval battle command system of the high latitude area.%传统超视距目标跟踪中将目标位置信息转变到以融合中心为原点的直角坐标系下进行,针对这种方法在高纬度地区使用所带来的目标位置信息误差问题,提出将目标信息转变到横向地球坐标进行表示,在此基础上构建了目标运动模型、目标观测模型以及基于无迹卡尔曼滤波的超视距目标跟踪模型,仿真分析结果表明,所提出的方法能够提高高纬度地区的超视距目标跟踪精度,能够满足高纬度地区舰艇作战指挥系统对超视距目指信息的精度需求.