The invention discloses a composite guide vector field method for rapid optimization of an extraterrestrial celestial body landing point, and belongs to the field of deep space exploration. The implementation method comprises the following steps: comprehensively considering complex constraints given by a specific task, constructing a comprehensive weighted optimization evaluation function, and further obtaining a composite guide vector field reflecting a potential indication effect of a star catalogue environment; numbering all discontinuous independent search areas and composite guide vector fields thereof in a star catalogue DEM (Digital Elevation Model); a step length attenuation jump search algorithm is adopted for searching at the same time, and the centroid of each sub-region is extracted to serve as a search starting point; comparing the N search results, and selecting the maximum point of the comprehensive optimization weighted evaluation function J as the search result of the current independent search area; and comparing the target landing point search results in each independent search area Ai to obtain the maximum comprehensive optimization weighted evaluation function J search result in the alternative landing area and the corresponding optimal landing point of the star catalogue under multiple constraints so as to realize the rapid optimization of the extraterrestrial celestial body landing point.
本发明公开的地外天体着陆点快速优选的复合引导矢量场方法,属于深空探测领域。本发明实现方法为:综合考虑具体任务给定的复杂约束,构建综合加权优选评估函数,进而得到反映星表环境潜在指示作用的复合引导矢量场;在星表DEM中对所有不连续的独立搜索区域及其复合引导矢量场编号;采用步长衰减的跳跃搜索算法同时进行搜索,提取每个子区域的形心作为搜索起点;对N个搜索结果进行比较,选择综合优选加权评估函数J最大的点作为当前独立搜索区域的搜索结果;比较在每个独立搜索区域Ai中得到的该区域内的目标着陆点搜索结果,得到备选着陆区内最大的综合优选加权评估函数J搜索结果,以及对应的多约束下星表最优着陆点,实现地外天体着陆点快速优选。
Composite guide vector field method for rapid optimization of extraterrestrial celestial body landing point
地外天体着陆点快速优选的复合引导矢量场方法
01.11.2024
Patent
Elektronische Ressource
Chinesisch
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