摘要
将航天员安全送回地球是载人登月无论成功与否都必须执行的任务。本文建立了从环月轨道出发,以月地转移轨道为设计目标,满足轨道、光照、测控和地球再入等约束的发射窗口的计算模型;提出了从着月点窗口起算、逐步反推的发射窗口选择算法。最后,给出包括低纬/高纬、陆地/海洋四个回收场的月地转移轨道仿真算例。研究结果表明,在我国境内(包括近海)可以实现载人登月的陆地或海洋、低纬或高纬的回收。
Safe return of astronauts to earth is a mandatory requirement for a manned lunar landing mission no matter landing on the moon is successful or not.First,a mathematical model of launch window for return from the moon is established in design of a transearth trajectory starting from the lunar parking orbit,meeting orbital,sun light,earth station coverage and earth reentry constrains.Then a launch window determination algorithm that calculates and induces from the launch window of the moon landing point is proposed.Finally,simulation examples of transearth trajectories covering water and land landing and low and high latitude recovery sites are given.The results of the research show that water or land landing and low or high latitude recovery sites may be acceptable for China's future manned lunar landing mission.
出处
《飞行器测控学报》
2010年第3期48-53,共6页
Journal of Spacecraft TT&C Technology
关键词
载人登月
发射窗口
月地返回轨道
回收场
Manned Lunar Landing Mission
Launch Window
Transearth Trajectory
Recovery Site
