碎片云演化分析新进展: 完全基于概率表征方法

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doi:10.6052/1000-0992-21-002

国防科技大学空天科学学院, 长沙 410073
空天任务智能规划与仿真湖南省重点实验室, 长沙 410073

基金项目:国家自然科学基金资助项目 (11972044)

详细信息

作者简介:
罗亚中, 国防科技大学空天科学学院教授, 博士生导师. 主要从事航天动力学与控制研究. 被表彰为中国载人航天工程突出贡献者, 获教育部青年科学奖、省自然科学一等奖2项

通讯作者:
luoyz@nudt.edu.cn

中图分类号:V41
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- 被引次数:0
出版历程
- 收稿日期:2021-01-15
- 录用日期:2021-06-15
- 网络出版日期:2021-06-30
- 刊出日期:2021-11-26

Progress in the analysis of debris cloud evolution: Fully based on probabilistic methods

College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Mission, Changsha 410073, China

More Information

Corresponding author:luoyz@nudt.edu.cn

摘要

摘要:从碎片云的不确定性特征出发, 可以构建完全基于概率表征的碎片云演化分析方法. 用于对解体、演化和碰撞过程进行解析分析, 避免了数值方法计算效率低和结果鲁棒性差的问题.
- 碎片云/
- 演化/
- 密度
Abstract:In view of the intrinsic uncertainty of the debris cloud, a fully probabilistic framework of debris evolution is constructed. The breakup, evolution and collision of the debris cloud can be analyzed analytically, avoiding the problems of low computational efficiency and poor robustness of numerical methods.
- space debris cloud/
- density/
- evolution

HTML全文

图 1(a)分别通过采样法(颜色图)和解析法(等高线)得到的解体碎片半长轴与偏心率分布; (b)不同采样数量得到的概率密度(实线)与解析法(虚线)比较, 采样方法需要大量样本才能捕获小概率事件; (c)解体碎片云对空间目标的年碰撞率变化; (d) (e) (f) 碎片云在选定位置的速度分布 (Frey & Colombo 2021)

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参考文献 (14)

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