双星预警系统弹道参数估计及一些问题分析  

Estimation of Ballistic Parameters with DuaI-GEO Early Warning System and Analysis of Some Problems

作　　者：李润恒[1] 周海银[1] 

机构地区：[1]国防科学技术大学数学与系统科学系,湖南长沙410073

出　　处：《飞行器测控学报》2006年第1期37-42,共6页Journal of Spacecraft TT&C Technology

摘　　要：主要讨论由2颗地球同步轨道卫星组成的卫星预警系统（简称双星预警系统）中弹道导弹参数的估计问题。阐述了主动段运动的建模问题和弹道数据处理方法，考虑到微分求速的重要性，采用了带光滑约束的样条拟合方法。结合预警系统对弹道导弹预警的具体情况，分别讨论了预警系统下的发射原点估计、射向估计、关机时刻估计、关机点弹道参数估计、落点估计等问题。还讨论了系统中存在的两个问题的分析与解决。模型及分析方法均经过理论和仿真的验证，可应用于双星预警系统下的实际预警的研究。This paper discusses the design of algorithms for ballistic missile parameter estimation. A space early warning system is designed with two satellites in Geosynchronous Earth Orbit （Dual-GEOs）. It introduces the kinematic modeling during boost phase and the data processing for ballistic missiles. For estimation of velocity, an approximating function of smoothing spline is used in this paper. A parameter estimate problem is presented about material ballistic trajectory of missiles to estimate the position and heading at launch, at burnout, and at impact. Two problems of the system and solutions for them are discussed. The methods and models are tested from both theoretical and emulation perspectives.

关 键 词：双星预警系统 弹道参数估计 建模 

分 类 号：V412.1[航空宇航科学与技术—航空宇航推进理论与工程] V474.274