小天体探测任务及形状建模综述

Exploration mission and shape modeling of small celestial bodies:a review

小天体形状建模对小天体探测具有重要的工程和科学意义.精细的地形模型是进行小天体着陆和采样返回的前提条件,同样也是进行小天体形貌分析和地质特征及成因探讨的基础数据.本文首先回顾了过去十几年中主要的小天体探测任务,对其相关的小天体三维表面模型重建工作进行介绍,在此基础上对主流的重建方法进行总结、分析,讨论了各种方法的局限性,提出未来可能的研究方向.这一工作将为我国小天体探测任务的地形三维建模提供重要参考.

The shape modeling of small celestial bodies is of great engineering and scientific significance for the exploration of small celestial bodies. Fine terrain model is the prerequisite for landing and sampling return, and it is also the basic data for small objects morphology analysis, geological characteristics and genesis. In this paper, we first review the major small celestial bodies exploration missions in the past decade, and introduce the related 3D surface model reconstruction of small objects. On this basis, we summarize and analyze the mainstream reconstruction methods, discuss the limitations of various methods, and put forward the possible research directions in the future. This work will provide some reference for the 3D terrain modeling of small celestial bodies exploration mission in China.