摘要
低轨预警卫星通常以弹道导弹作为探测对象,针对低轨双星系统对于临近空间高超声速飞行器的定位性能;基于STK和Matlab两种仿真软件,搭建了基于双星系统的目标观测场景,建立了"跳跃-滑翔"高超声速飞行器的弹道模型,推导了利用双星无源测角信息对于目标的几何定位算法,仿真分析了不同高度的卫星星座对于目标的定位精度,结果证明在卫星位置和测角误差相同的条件下,目标定位精度受到卫星高度的影响较大,给出了进一步提高定位精度的建议。
LEO satellites＇s main mission is to track ballistic missiles. This paper explores the positioning per-fomance of hypersonic vehicles based on the binaty satellite system. Firstly, the trajectoty model of the ＂jump-gliding＂ hypersonic vehicle is established. The geometric positioning algorithm using the passive measurement an-gle information of the binary satellite is deduced. Based on the STK and Matlab simulation software, the target ob-servation scene based on the binary star system is established. Simulation analysis of the positioning accuracy of the satellite constellations of different heights shows that under the same conditions of satellite position and angle error, the accuracy of the target positioning is greatly affected by the satellite constellation height. How to improve posi-tioning accuracy is put forward.
作者
曾江辉
高永明
丁丹
林存宝
宋鑫
ZENG Jiang-hui;GAO Yong-ming;DING Dan;LIN Cun-bao;SONG Xin(Graduate School of Space Engineering University,Beijing,101416,China;Aerospace Information Institute of Space Engineering Univer-sity,Beijing,101416,China;Department o f Electronic and Optical Engineering o f Space Engineering University)
出处
《软件》
2018年第8期88-93,共6页
Software
