Accurately tracking hypersonic gliding vehicles via an LEO mega-constellation in relay tracking mode  

作　　者：LI Zhao WANG Yidi ZHENG Wei 

机构地区：[1]College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China

出　　处：《Journal of Systems Engineering and Electronics》2024年第1期211-221,共11页系统工程与电子技术（英文版）

基　　金：supported by the Science and Technology Innovation Program of Hunan Province(2021RC3078)。

摘　　要：In order to effectively defend against the threats of the hypersonic gliding vehicles(HGVs),HGVs should be tracked as early as possible,which is beyond the capability of the ground-based radars.Being benefited by the developing megaconstellations in low-Earth orbit,this paper proposes a relay tracking mode to track HGVs to overcome the above problem.The whole tracking mission is composed of several tracking intervals with the same duration.Within each tracking interval,several appropriate satellites are dispatched to track the HGV.Satellites that are planned to take part in the tracking mission are selected by a new derived observability criterion.The tracking performances of the proposed tracking mode and the other two traditional tracking modes,including the stare and track-rate modes,are compared by simulation.The results show that the relay tracking mode can track the whole trajectory of a HGV,while the stare mode can only provide a very short tracking arc.Moreover,the relay tracking mode achieve higher tracking accuracy with fewer attitude controls than the track-rate mode.

关 键 词：target tracking mega-constellation hypersonic gliding vehicle(HGV) sensor selection observability analysis 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] E91[自动化与计算机技术—控制科学与工程] E926.4[军事]