宇航学报 ›› 2020, Vol. 41 ›› Issue (12): 1544-1552.doi: 10.3873/j.issn.1000-1328.2020.12.008

• 制导、导航、控制与电子 • 上一篇    下一篇

基于光度曲线的弱特征空间目标姿态估计

梁勇奇,韩凌峰,李恒年   

  1. 1. 西安交通大学机械结构强度与振动国家重点实验室,西安 7100492. 西安卫星测控中心宇航动力学国家重点实验室,西安 710043
  • 收稿日期:2019-12-18 修回日期:2020-03-13 出版日期:2020-12-15 发布日期:2020-12-15
  • 基金资助:
    宇航动力学国家重点实验室开放基金;中央高校基本科研业务费专项基金(xjj2016070)

Attitude Estimation of Weak Feature Space Object from Light Curve

LIANG Yong qi, HAN Ling feng, LI Heng nian   

  1. 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, Xian Jiaotong University,Xian 710049,China;2. State Key Laboratory of Astronautics Dynamics,Xian Satellite Control Center,Xian 710043,China
  • Received:2019-12-18 Revised:2020-03-13 Online:2020-12-15 Published:2020-12-15

摘要: 针对暗弱空间光度曲线波动不明显的弱特征目标姿态难以估计的问题,本文基于不同观测站所得到的目标光度曲线具有差异的特点提出以空间换取精度的设想,并据此设计了多站联合光度观测并行融合的解决方案。通过分析站点位置以及站点数量对弱特征空间目标姿态估计的影响,验证了该解决方案的可行性与有效性,发现了站点的布置有规律可循。仿真表明,站点之间距离的增加以及站点数量的增加都可以减小姿态估计误差,而通过沿空间目标对太阳光线反射的相对方向布置站点可以得到更好的姿态估计结果。

关键词: font-size:10.5pt, ">光度观测;多站观测;并行融合;姿态估计

Abstract: Considering the difficulty in attitude estimation of a weak feature object in faint space with insignificant fluctuation light curve, this paper proposes the idea of trading space for accuracy based on the fact that the light curves obtained on different sites are different, and designs a multi site joint photometric parallel fusion solution. By analyzing the influence of the positions and the number of sites on the weak feature space object attitude estimation, the feasibility and effectiveness of the solution are verified. We also find there are rules for the site positions to follow. The numerical simulation shows that both the increased site distance and site number can reduce the attitude estimation error, and a much better attitude estimation result can be obtained by arranging the sites along the opposite directions of the space objects reflection of the sun lights.

Key words: Photometric observation, Multi site observation, Parallel fusion, Attitude estimation

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