| 探测器着陆小天体的自主光学导航研究 |
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| 引用本文： | 黄翔宇,崔祜涛,崔平远. 探测器着陆小天体的自主光学导航研究[J]. 电子学报, 2003, 31(5): 659-661 |
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| 作者姓名： | 黄翔宇 崔祜涛 崔平远 |
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| 作者单位： | 哈尔滨工业大学137深空探测基础研究中心,黑龙江哈尔滨 150001 |
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| 基金项目： | 十五国防科技民用航天预研项目 |
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| 摘 要： | 提出了一种用于探测器着陆小天体的自主光学导航方案.该方案利用探测器上的光学导航相机和激光测距仪,分别测量三个预先选定特征点的图像坐标和探测器到特征点的距离,由此得出探测器的相对位置,并利用广义卡尔曼滤波实时确定探测器的轨道.最后,通过数学仿真验证了这种自主光学导航方案的可行性,并在敏感器测量精度一定的情况下,通过仿真分析了小天体模型误差对导航精度的影响.
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| 关 键 词： | 小天体 自主光学导航 广义卡尔曼滤波 |
| 文章编号： | 0372-2112(2003)05-0659-03 |
| 收稿时间： | 2001-12-20 |
Autonomous Optical Navigation for Probes Landing on Small Body |
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| HUANG Xiang yu,CUI Hu tao,CUI Ping yuan. Autonomous Optical Navigation for Probes Landing on Small Body[J]. Acta Electronica Sinica, 2003, 31(5): 659-661 |
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| Authors: | HUANG Xiang yu CUI Hu tao CUI Ping yuan |
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| Affiliation: | Deep Space Exploration Research Center,PO Box 137,Harbin Institute of Technology,Harbin,Heilongjiang 150001,China |
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| Abstract: | An autonomous optical navigation scheme for probes landing on small body is presented.The image coordinates of three pre selected fixation points (FPs) are obtained by using an optical navigation camera.And the distance from probes to each FP is measured using a laser range finder.Relative position for probes is acquired from three image coordinates and the distance.The real time orbit for probes is determined by using the extended Kalman filter.The effectiveness of the scheme is validated using digital simulations.And the influence of the navigation precision upon the small body model error for small body is analyzed by simulations,under the certain sensors precision circumstance. |
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| Keywords: | small body autonomous optical navigation extended Kalman filter |
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