现代防御技术 ›› 2022, Vol. 50 ›› Issue (6): 11-18.DOI: 10.3969/j.issn.1009-086x.2022.06.002

• 专栏 • 上一篇    下一篇

主动接近式航天器威胁分析方法

吴丽君1(), 张皓2   

  1. 1.北京电子工程总体研究所,北京 100854
    2.中国科学院 空间应用工程与技术中心,北京 100094
  • 收稿日期:2022-09-21 修回日期:2022-11-15 出版日期:2022-12-28 发布日期:2023-01-06
  • 作者简介:吴丽君(1997-),女,苗族,湖南城步人。助工,硕士,研究方向为航天器动力学控制与仿真。通信地址:100854 北京市 142 信箱 30 分箱 Email: wulijun0921@163.com

Threat Analysis Methods of Actively Approaching Spacecraft

Li-jun WU1(), Hao ZHANG2   

  1. 1.Beijing Institute of Electronic Engineering, Beijing 100854, China
    2.Chinese Academy of Sciences, Technology and Engineering Center for Space Utilization, Beijing 100094, China
  • Received:2022-09-21 Revised:2022-11-15 Online:2022-12-28 Published:2023-01-06

摘要:

针对具有机动能力的非合作主动接近航天器,提出一种威胁指标计算模型,用于分析追踪航天器对目标航天器的威胁大小。分析追踪航天器的任务模式,利用双脉冲Lambert算法得到交会所需的脉冲冲量和交会时间,以其为威胁要素,选择最具威胁性的接近路线进行威胁要素的加权,计算得到综合威胁指标。仿真结果表明,追踪航天器的威胁指标对于轨道数据变化十分敏感,相比于常用的相对距离指标,根据威胁指标变化趋势可以更快判断出非合作航天器某次机动的接近意图。在复杂空间态势背景下,该模型可以完成主动接近式航天器的威胁预判,以便及时采取防护措施,提升卫星生存能力。

关键词: 非合作航天器, 威胁要素, 双脉冲交会, 指标加权, 威胁指标, 威胁预判

Abstract:

With regard to the non-cooperative actively approaching spacecraft with maneuverability, a threat index calculation model to analyze the threat of the chaser to the target is proposed. We extract the impulse and the time required for rendezvous based on two impulses Lambert algorithm as threat elements after analyzing the mission mode of the chaser. The most threatening route is selected to weigh the impulse and time in order to calculate the comprehensive threat index. Simulation results show that the threat index of the chaser is very sensitive to the changes of orbital elements. Comparing the commonly used relative distance index, the threat index can identify the maneuver intention more quickly according to its trend. Under the complex space situation, the threat index analysis model is able to predict the threat of actively approaching spacecraft so as to take timely protective measures and improve the survivability of satellites.

Key words: non-cooperative spacecraft, threat elements, two impulse rendezvous, weighted index, threat index, threat prediction

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