Research on characterized graphics matching method of autonomous optical navigation for lunar explorer
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摘要: 对基于特征图形匹配的月面精确着陆光学导航方法进行了研究, 包括图像特征点提取、特征图形构建以及特征图形匹配. 利用特征点间相对距离不变的特性, 确立特征点的连通规则, 解决存在平移、旋转和放缩等情况下的图形匹配问题. 利用多幅月面真实图片对算法进行仿真测试, 仿真结果验证了其有效性. 以所提出的特征图形匹配方法为基础, 设计仿真算例对导航方法进行验证, 结果表明, 基于特征图形匹配的光学导航方法可实时确定飞行器的位置和速度信息且精度较高, 是适用于探月飞行器精确着陆导航的有效途径.Abstract: This paper focuses on the characterized graphics matching based navigation method of precise landing on the moon, which mainly consists of feature point extracting, characterized graphics constructing and matching. Based on the property that the relative distance between two characterized points is unchanged, by establishing the connected rules of two characterized points, the method is adopted to overcome the problem of graphics matching with translation, rotation and scale changes. The algorithm is tested with multiple real lunar pictures, and the emulational experiment results approve the effectiveness of the method. Navigation method based on the characterized graphics matching is validated by designing a numerical simulation. The simulations reveal that the method that can gain the position and speed of vehicle with high precision in nearly real-time is an effective solution to lunar precise landing.
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Key words:
- Characterized graphics /
- Graphics matching /
- Lunar landing /
- Optical navigation
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[1] Mu Rongjun, Han Pengxin, Cui Naigang. Navigation device scheme and information processing method of RLV[J]. Chin. J. Space Sci., 2009, 29(1):117-123. In Chinese (穆荣军, 韩鹏鑫, 崔乃刚. RLV导航系统硬件配置方案及信息处理技术[J]. 空间科学学报, 2009, 29(1):117-123) [2] Xiong Weiming, Xie Chunjian, Liang Xianfeng, et al. Deep space TT&C equipments of YH-1[J]. Chin. J. Space Sci., 2009, 29(5):490-494. In Chinese (熊蔚明, 谢春坚, 梁显锋, 等. 萤火一号深空测控设备[J]. 空间科学学报, 2009, 29(5):490-494) [3] Chirold D E, Edward A R, Brady T. Autonomous landing and hazard avoidance technology (ALHAT)[C]//IEEE Aerospace Conference Proceedings, Big Sky, 2008:243-249 [4] Ansar A, Yang C. An analysis of spacecraft localization from descent image data for pinpoint landing on Mars and other cratered bodies[J]. Photogr. Eng. Remote Sens., 2005, 71(10):1197-1204 [5] Yang C, Johnson A E, Matthies L H, et al. Optical landmark detection for spacecraft navigation[C]//Proceedings of the 13th Annual AAS/AIAA Space Flight Mechanics Meeting. Ponce, PR, 2003:1785-1803 [6] Yang C. Landmark based position estimation for pinpoint landing on Mars[C]//IEEE International Conference on Robotics and Automation, 2005: 4470-4475 [7] Tian Yang. Autonomous Navigation and Control Methods Research for Planet Lander[D]. Harbin: Harbin Institute of Technology, 2009. In Chinese (田阳. 行星着陆器自主导航与控制方法研究[D]. 哈尔滨: 哈尔滨工业大学, 2009) [8] Feng Junhua. Research On Autonomous Optical Navigation for Pinpoint Lunar Soft Landing[D]. Harbin: Harbin Institute of Technology, 2010. In Chinese (冯军华. 月球探测器软着陆自主光学导航方法研究[D]. 哈尔滨: 哈尔滨工业大学, 2010) [9] He Jiang, Cui Hutao, Feng Junhua. Edge information based crater detection and matching for lunar exploration[C]//International Conference on Intelligent Control and Information Processing, Dalian, 2010:302-307 [10] Feng Junhua, Cui Hutao, Cui Pingyuan, Tian Yang. Autonomous crater detection and matching on planetary surface [J]. Acta Aeron. Astron. Sin., 2010, 31(9):1858-1863. In Chinese (冯军华, 崔祜涛, 崔平远, 田阳. 行星表面陨石坑检测与匹配方法[J]. 航空学报, 2010, 31(9):1858-1863) [11] Jie Ming, Yin Hang, Huang Xianlin. On 3D reconstruction technology of lunar lander autonomous soft landing[J]. J. Astron., 2007, 28(4):966-971. In Chinese (介鸣, 尹航, 黄显林. 月球探测器自主软着陆中的三维重构技术研究[J]. 宇航学报, 2007, 28(4):966-971) [12] Jiang Xiaonan. Vision-based Navigation for Lunar Probe Soft Landing[D]. Harbin: Harbin Institute of Technology, 2010. In Chinese (姜肖楠. 月球探测器软着陆视觉导航方法研究[D]. 哈尔滨: 哈尔滨工业大学, 2010) [13] Huang Guoqiang. Global 4D trajectory optimization design for lunar vertical soft landing[J]. Chin. J. Space Sci., 2014, 34(3):313-318. In Chinese (黄国强. 月球探测器垂直软着陆4D轨道全局优化[J]. 空间科学学报, 2014, 34(3):313-318) [14] Lin Shengyong, Li Zhuji, He Xingsuo. Preliminary design and characteristics of vertical[J]. Chin. Space Sci. Technol., 2005:47-51. In Chinese (林胜勇, 李珠基, 何兴锁. 月球垂直软着陆轨道初步设计[J]. 中国空间科学技术, 2005:47-51) [15] Cui Wen, Zhang Shaoyu, Zhang Shuyu, Baoyin Hexi. Research on optical autonomous navigation for approach phase of Mars exploration[J]. Chin. J. Space Sci., 2013, 33(2):313-319. In Chinese (崔文, 张少愚, 张树瑜, 宝音贺西. 火星探测接近段的光学自主导航研究[J]. 空间科学学报, 2013, 33(2):313-319) [16] Wang Pengji, Zhang He, Qu Guangji. Design and optimization of the descending trajectory and guidance of lunar soft-landing[J]. J. Astron., 2007, 28(5):1175-1179. In Chinese (王鹏基, 张熇, 曲广吉. 月球软着陆下降轨迹与制导律优化设计研究[J]. 宇航学报, 2007, 28(5):1175-1179) [17] Wang Jie, Zeng Zuoxun, Yue Zongyu, Hu Ye. Research of lunar tectonic features: Primary results from Chang'E-1 lunar CCD image[J]. Chin. J. Space Sci., 2011, 31(4):482-491. In Chinese (王杰, 曾佐勋, 岳宗玉, 胡烨. 月球主要构造特征:嫦娥一号月球影像初步研究[J]. 空间科学学报, 2011, 31(4):482-491)
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