| 火星轨道交会自主导航与制导方法 |
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| 引用本文： | 刘涛,解永春,王晓磊,胡锦昌.火星轨道交会自主导航与制导方法[J].宇航学报,2019,40(4):406-414. |
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| 作者姓名： | 刘涛 解永春 王晓磊 胡锦昌 |
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| 作者单位： | 1.北京控制工程研究所,北京 100190; 2.空间智能控制技术国家级重点试验室,北京 100190 |
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| 基金项目： | 国家重点基础研究发展(973)计划(2013CB733100)； 国家自然科学基金（61403031） |
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| 摘 要： | 对火星采样返回任务中的火星轨道交会自主导航和制导技术进行了研究。采用光学自主导航敏感器测量的火星中心方向和视半径，相对敏感器测量的相对位置等观测量，设计了导航滤波器同时估计轨返组合体和上升器的轨道。在导航滤波器设计中，针对光学自主导航敏感器更新频率远低于滤波解算频率的问题，设计了一种连续观测量构造算法，确保每个滤波周期均可进行测量更新，以提高导航精度。基于导航滤波器估计结果，采用T-H制导设计了4脉冲共椭圆交会策略实施轨道控制，从而构成近程交会自主导航和制导方案用于完成火星轨道交会任务。通过数学仿真校验了所提出方法的有效性。
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| 关 键 词： | 火星轨道 交会 自主导航 制导 |
| 收稿时间： | 2018-01-03 |
An Autonomous Rendezvous Navigation and Guidance Method in Mars Orbit |
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| LIU Tao,XIE Yong chun,WANG Xiao lei,HU Jin chang.An Autonomous Rendezvous Navigation and Guidance Method in Mars Orbit[J].Journal of Astronautics,2019,40(4):406-414. |
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| Authors: | LIU Tao XIE Yong chun WANG Xiao lei HU Jin chang |
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| Affiliation: | 1. Beijing Institute of Control Engineering， Beijing 100190, China; 2. Science and Technology on Space Intelligent Control Laboratory, Beijing 100190, China |
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| Abstract: | An autonomous rendezvous navigation and guidance method for a Mars sample return mission is proposed. Based on the Mars’ centroid and apparent diameter from an optical autonomous navigation sensor and the relative position from a rendezvous sensor, a navigation filter is designed to simultaneously estimate the orbit states both of the orbit vehicle and the ascent vehicle. As the update rate of the optical autonomous navigation sensor is notably less than the filter calculation rate, a novel generator algorithm for the sequential measurements is applied in the filter, which can generate the sequential data for every measurement update procedure and improve the filter’s capability. Using the navigation results, a co-elliptic orbit rendezvous strategy is adopted to complete the near phase rendezvous, and four impulses calculated by the T-H guidance law are executed in this phase. Finally, the efficiency of the method is validated by a simulation. |
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| Keywords: | Mars orbit Rendezvous Autonomous navigation Guidance |
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