空间碎片天基激光辐照下的轨道特性仿真分析

发布时间：2018-05-09 05:09

本文选题：空间碎片 + 天基激光　；参考：《红外与激光工程》2017年03期

【摘要】：厘米级空间碎片对在轨航天器的威胁极大,高能激光辐照使其降轨进入大气层烧毁是近年来的研究热点。针对空间站附近厘米级空间碎片,利用天基平台搭载高能激光器,提出了多脉冲激光降轨的计算方法。仿真结果表明,天基平台激光清除厘米级空间碎片的前提是空间碎片处于"清除窗口","清除窗口"的选择是能否实现空间碎片降轨的关键;根据已有的激光器及天基平台参数,空间碎片多脉冲激光降轨可以达到清除效果;多脉冲降轨结果表明,空间碎片偏心率变化较大,造成其半长轴与远地点变化幅度很小而近地点变化幅度很大,而轨道倾角变化幅度很小;当降轨幅度相同时,需要施加的多脉冲速度增量总和与一次性施加的单脉冲速度增量基本相同,但降轨效果相差较大,不能通过一次单脉冲计算近似表示多脉冲降轨效果。通过上述问题的研究,为进一步实现空间碎片天基激光探测清除一体化仿真研究奠定基础。
[Abstract]:Centimeter space debris poses a great threat to orbiting spacecraft. It is a hot research topic in recent years that high-energy laser irradiation can make the space debris descend into the atmosphere and burn out. Aiming at the centimeter space debris near the space station, a calculation method of multi-pulse laser deorbiting is proposed by using space-based platform to carry high energy laser. The simulation results show that the premise of eliminating centimeter level space debris by space-based platform laser is that the space debris is located in the "clearance window", and the selection of "clearance window" is the key to the realization of space debris deorbiting, according to the existing laser and space-based platform parameters, The results show that the eccentricity of space debris varies greatly, which results in the small variation of semi-long axis and apogee, and the large variation of perigee. When the amplitude of descent is the same, the sum of the increment of multi-pulse velocity that needs to be applied is basically the same as the increment of single-pulse velocity applied at one time, but the effect of orbit descent is quite different. The effect of multi-pulse descent can not be expressed by the calculation of single pulse. Through the research of the above problems, it lays a foundation for the further realization of space debris space-based laser detection and clearance integrated simulation research.
【作者单位】：装备学院激光推进及其应用国家重点实验室;
【基金】：国家自然科学基金(11502301)
【分类号】：V528;TN249

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