“天问一号”火星探测器着陆控制方案研究

Research on the Landing Control Scheme of"Tianwen-1"Mars Probe

本文先依据“天问一号”着陆的有关数据,运用数学和物理方法,建立着陆器的运动模型方程;再借助蒙特卡罗模型和遗传算法,分别基于耗时最短、燃耗最优的目标,设计着陆的控制策略。根据“天问一号”着陆的真实值数据,对模型进行了匹配度检验,结果表明:运动模型结果与真实值数据的误差较小,说明该运动模型具有可靠性,可以使其广泛应用于人类对其他星球的进一步探测,为宇宙探测计划提供参考性技术。

In this paper,based on the relevant data of"Tianwen-1"landing,mathematical and physical methods are used to establish the motion model equation of the lander;with the help of Monte Carlo model and genetic algorithm,the landing control strategies are designed respectively based on the objectives of the shortest time consumption and the best fuel consumption.According to the real value data of the"Tianwen-1"landing,the model was checked for matching degree.The results showed that the error between the motion model results and the real value data was small,indicating that the motion model has reliability and could be widely used in the further exploration of other planets by humans,providing a reference technology for the space exploration program.