| 引用本文: | 王卫东,张泽旭,朱圣英,崔平远.一种小天体绕飞轨道及目标天体参数确定方法[J].哈尔滨工业大学学报,2011,43(9):19.DOI:10.11918/j.issn.0367-6234.2011.09.004 |
| WANG Wei-dong,ZHANG Ze-xu,ZHU Sheng-ying,CUI Ping-yuan.An algorithm of around orbit and parameters determination for small body[J].Journal of Harbin Institute of Technology,2011,43(9):19.DOI:10.11918/j.issn.0367-6234.2011.09.004 |
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| 摘要: |
| 提出一种基于SRIF滤波器的小天体探测器绕飞轨道及目标天体参数确定方法.考虑绕飞小天体初期待估参数多、动力学环境复杂等特点,利用SRIF滤波器对组合导航数据进行处理,对探测器绕飞轨道以及目标天体引力场模型、自旋状态、星历信息等动力学参数进行估计.利用Eros433的观测数据进行数学仿真表明,本文给出的方法能够有效地计算绕飞轨道和确定目标天体的物理参数. |
| 关键词: 小天体探测 绕飞轨道 光学导航 均方根信息滤波 |
| DOI：10.11918/j.issn.0367-6234.2011.09.004 |
| 分类号:V412.41 |
| 基金项目:航天创新基金资助项目(CASC200902-4);深空探测着陆与返回控制技术国防重点学科实验室开放基金资助项目(HIT.KLOF.2009070) |
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| An algorithm of around orbit and parameters determination for small body |
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WANG Wei-dong1, ZHANG Ze-xu1, ZHU Sheng-ying2, CUI Ping-yuan2
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1.Deep Space Exploration Research Center,Harbin Institute of Technology,150001 Harbin,China;2.Aerospace College,Beijing Institute of Technology,100081 Beijing,China)
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| Abstract: |
| The around orbit parameters and small body physical parameters determination methods are studied based on Square Root Information Filter(SRIF).Due to a great deal of parameters to be estimated and the complexity of the dynamics,the SRIF is designed to process the integrated navigation data and estimate the gravity field,rotation,and ephemeris of small body and orbit parameters of probe.The mathematic simulation experiments using the measuring data of Eros433 small body have validated the algorithm. |
| Key words: small body exploration around orbit optical navigation Square Root Information Filter(SRIF) |
