基于NSGA-II 算法的上面级转移轨道中途修正时机优化

设计了一种基于NSGA—Ⅱ的中途修正时机优化算法．基于上面级运动方程和Lambert远程变轨，通过算例验证了中途修正的必要性，确定了修正策略．引入NSGA—Ⅱ算法，对中途修正的目标函数进行优化，得到了修正时刻的最优解集．结果表明，该算法得到的修正时机优化Pareto最优解集完整且分布均匀，中途修正效果很好．

Research on optimization of midcourse correction time points of upperstage transfer orbit via NSGA-II

This paper presents a multi-objective optimization algorithm for midcourse correction via the modified non-
dominated sorting genetic algorithm(NSGA-II). By using the motion equations of upper stage and the solution method of
Lambert problem, the need of midcourse correction is validated and the correction scheme is determined by comparing the
results of an example. The NSGA-II is introduced for the multi-objective optimization model of midcourse correction, and
the optimal solution set is obtained. The good correction results show that the NSGA-II algorithm can completely produce
the Pareto optimal solution set which is uniform distribution.