月面形貌仿真设计及在嫦娥三号任务中的应用
发布时间：2018-07-31 19:11
【摘要】：月面形貌仿真可以为嫦娥三号着陆前地形建立及视觉导航仿真测试提供逼真的三维月面环境。利用分形随机算法并结合月面撞击坑与石块的数学分布模型,在实现月面数字地形的基础上利用纹理映射和纹理融合的方法为月面地形添加纹理,完成了月面逼真三维环境的构建。结合导航相机的外方位元素和光照条件,实现了对该仿真月面环境的模拟环拍,支撑了嫦娥三号发射前月球车导航相机数据获取、地形建立、通行代价图计算、月球车路径规划等遥操作任务过程仿真测试。测试结果表明,仿真月面三维地形具有良好的视觉效果,满足了巡视器导航相机测试验证对精细月面地形和纹理的需求,为导航相机测试验证提供了有效的月面形貌仿真数据。
[Abstract]:The simulation of lunar surface topography can provide realistic 3D lunar surface environment for terrain establishment and visual navigation simulation test before Chang 'e-3 landing. Based on the fractal random algorithm and the mathematical distribution model of lunar impact crater and rock, the texture mapping and texture fusion method are used to add texture to the lunar terrain based on the realization of lunar digital terrain. The construction of the realistic three-dimensional environment of lunar surface is completed. Combined with the external azimuth elements and illumination conditions of the navigation camera, the simulation of the lunar surface environment is realized, which supports the data acquisition of the lunar rover navigation camera before the Chang 'e-3 launch, the establishment of the terrain, and the calculation of the passage cost map. Lunar rover path planning and other remote operation task process simulation test. The test results show that the simulation of lunar 3D terrain has a good visual effect, which meets the needs of precise lunar topography and texture verification of patrol navigation camera test, and provides effective simulation data of lunar topography for navigation camera testing and verification.
【作者单位】： 遥感科学国家重点实验室中国科学院遥感与数字地球研究所;中国矿业大学物联网(感知矿山)研究中心;北京航天飞行控制中心;
【基金】：国家自然科学基金项目(41201480,41171355)
【分类号】：P184.5
，
本文编号：2156561
[Abstract]:The simulation of lunar surface topography can provide realistic 3D lunar surface environment for terrain establishment and visual navigation simulation test before Chang 'e-3 landing. Based on the fractal random algorithm and the mathematical distribution model of lunar impact crater and rock, the texture mapping and texture fusion method are used to add texture to the lunar terrain based on the realization of lunar digital terrain. The construction of the realistic three-dimensional environment of lunar surface is completed. Combined with the external azimuth elements and illumination conditions of the navigation camera, the simulation of the lunar surface environment is realized, which supports the data acquisition of the lunar rover navigation camera before the Chang 'e-3 launch, the establishment of the terrain, and the calculation of the passage cost map. Lunar rover path planning and other remote operation task process simulation test. The test results show that the simulation of lunar 3D terrain has a good visual effect, which meets the needs of precise lunar topography and texture verification of patrol navigation camera test, and provides effective simulation data of lunar topography for navigation camera testing and verification.
【作者单位】： 遥感科学国家重点实验室中国科学院遥感与数字地球研究所;中国矿业大学物联网(感知矿山)研究中心;北京航天飞行控制中心;
【基金】：国家自然科学基金项目(41201480,41171355)
【分类号】：P184.5
，
本文编号：2156561
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