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姚文龙, 刘毅, 邵巍, 孙玉洁. 小天体地形动态模拟与着陆视景仿真系统设计[J]. 深空探测学报(中英文), 2022, 9(4): 427-437. DOI: 10.15982/j.issn.2096-9287.2022.20220010
引用本文: 姚文龙, 刘毅, 邵巍, 孙玉洁. 小天体地形动态模拟与着陆视景仿真系统设计[J]. 深空探测学报(中英文), 2022, 9(4): 427-437. DOI: 10.15982/j.issn.2096-9287.2022.20220010
YAO Wenlong, LIU Yi, SHAO Wei, SUN Yujie. Design of Terrain Dynamic Simulation and Landing View Simulation System for Small Celestial Bodies[J]. Journal of Deep Space Exploration, 2022, 9(4): 427-437. DOI: 10.15982/j.issn.2096-9287.2022.20220010
Citation: YAO Wenlong, LIU Yi, SHAO Wei, SUN Yujie. Design of Terrain Dynamic Simulation and Landing View Simulation System for Small Celestial Bodies[J]. Journal of Deep Space Exploration, 2022, 9(4): 427-437. DOI: 10.15982/j.issn.2096-9287.2022.20220010

小天体地形动态模拟与着陆视景仿真系统设计

Design of Terrain Dynamic Simulation and Landing View Simulation System for Small Celestial Bodies

  • 摘要: 针对小天体探测器着陆段光学图像导航难以开展实验验证等问题,基于虚拟现实设计小天体地形动态模拟与着陆视景仿真系统,实现了探测器姿态设计及着陆序列图像获取。运用三维建模技术建立小天体模型,利用加权最小二乘法实现模型网格光顺;采用线性插值处理贴图,通过球面映射与立体投影映射相结合实现纹理映射;开发虚拟视景仿真场景,根据旋转矩阵法实现探测器姿态设计。实验表明:仿真系统能够满足探测器着陆段图像导航验证需求,可以实现对小天体地形动态观测及着陆图像获取,图形质量高、实时性好,通过具体实例仿真验证了该系统的有效性。

     

    Abstract: To solve the problem that it is difficult to carry out experimental verification for optical image navigation of small celestial body detector landing section, a small celestial body terrain dynamic simulation and landing scene simulation system was designed based on virtual reality, and the detector attitude design and landing sequence image acquisition were realized. The small celestial body model was established by using three-dimensional modeling technology, and the weighted least square method was used to realize the smooth grid of the model; linear interpolation was used to process the map, and texture mapping was realized by combining spherical mapping with cube mapping; the virtual scene simulation was developed, and the detector attitude design was realized according to the rotation matrix method. Experiments show that the simulation system can meet the demand for image navigation verification of the landing section of the probe, and can realize dynamic observation of small object topography and landing image acquisition with high graphic quality and good real-time performance, and the effectiveness of the system is verified by specific example simulation.

     

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