基于低轨预警卫星测量数据的弹道重构与选星算法研究  

Research on Trajectory Estimation and Selection Based on Observation Data of STSS

作　　者：叶飚 曾占魁[1,2] 冯刚 曹喜滨[2] 

机构地区：[1]上海宇航系统工程研究所,上海201109 [2]哈尔滨工业大学航天学院,黑龙江哈尔滨15001

出　　处：《上海航天》2014年第1期7-11,62,共6页Aerospace Shanghai

摘　　要：在低轨天基预警卫星(STSS)24星构型配置条件下,对弹道导弹ICBM全程飞行过程中可见预警卫星数多于2颗,用最小二乘几何弹道一次定位及扩展卡尔曼滤波(EKF)算法,提出了基于观测噪声估计方差最小的可见星最优选星原则。仿真结果表明:与不进行选星方式相比,用该选星原则进行弹道导弹弹道重构计算可满足在最小限度占用监视预警卫星资源条件下,获得更高的弹道重构精度。On the condition of space tracking and surveillance system （STSS） constellation made up of 24 satellites and more than two visible satellites on the full trajectory of intercontinental ballistic missile （ICBM）, a method of optimal selecting visible satellites based on the least variance estimation of measurement noises, from the applying on the algorithm of the least square missile position estimation and extend Kalman filtering （EKF） was proposed in this paper. The simulation results showed that this method could attain higher precision of trajectory estimation than the non-selecting plan for the least occupying resource of STSS signal procession.

关 键 词：低轨预警卫星 弹道重构 选星算法 最小二乘法 扩展卡尔曼滤波 

分 类 号：V412.41[航空宇航科学与技术—航空宇航推进理论与工程]