高空飞行器被动段运行轨迹精密解算方法  

The Precise Flight Trajectory Tracking Approach of Altitude Vehicle in Unpowered Phase

作　　者：翟国君[1,2] 卞光浪[2,3,4] 孙君亮[3] 李连登[3] 项树林[3] 童艳[3] 

机构地区：[1]海军海洋测绘研究所 [2]海军工程大学导航工程系 [3]91550部队 [4]国家海洋局海底科学重点实验室

出　　处：《测绘学报》2014年第11期1109-1117,共9页Acta Geodaetica et Cartographica Sinica

基　　金：国家自然科学基金(41374018);国家海洋局海底科学重点实验室基金(KLSG1201)

摘　　要：如何精确解算高空飞行器被动段运行轨迹是航天测控领域研究的热点与难点问题。本文在分析空间飞行器受力状况的基础上,建立了严密飞行器运动状态方程,采用层次聚类分析方法构建了落点数据质量控制方案。通过仿真试验,研究了空气阻力、地球引力和积分迭代步长等要素对飞行器运行轨迹的影响,检验了落点预报质量控制方案的可行性和有效性。结论表明,提出的数学模型能够高精度地解算出飞行器被动段运行轨迹,实现了落点位置自动化预报处理。How to accurately track the flight trajectory of altitude vehicle at unpowered phase is the hot and tough problemin the field of space measurement and control .Based on the analysis of forces acting on the flight vehicle ,its rigid movement state equation has been established ,and the quality control scheme has also been put forward adopting hierarchical clustering technique to figure out the precise position of impact point .The feasibility and effectiveness of the suggested quality control scheme has been illustrated by simulated example ,in which the influence caused by air drag ,gravity and iterative step has been researched .The conclusion shows that the flight trajectory of altitude vehicle in unpowered phase could be accurately calcul ated with offered mathematics model , and the impact point could be automatically estimated .

关 键 词：高空飞行器 运行轨迹 状态方程 落点预报 质量控制 

分 类 号：P227[天文地球—大地测量学与测量工程]