This guidance law can satisfy the requirements of miss distance and terminal Angle, thus it guarantees that all phases of the large-space variable trajectory smoothly link.
该导引律能同时满足脱靶量要求和末端落角要求，保证了大空域变轨弹道的各段弹道平滑衔接。
2
Through the analysis on the cislunar trajectory, and according to the different terminal constraints, the searching step by step method is provided to design the accurate trajectory.
通过对地月间飞行轨道特征进行分析，根据不同的终端约束条件，提出了分层搜索的轨道设计方法。
3
So maneuver reentry trajectory design problem was transferred into the more complex optimum control problem with terminal constraints and inner state constraints.