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首页> 外文会议>International astronautical congress;IAC 2009 >STUDY OF LAUNCH WINDOW DESIGN FOR LUNAR SOFT-LANDING MISSION LIKE THE 2ND STAGE OF CHINA LUNAR EXPLORATION PROGRAM
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STUDY OF LAUNCH WINDOW DESIGN FOR LUNAR SOFT-LANDING MISSION LIKE THE 2ND STAGE OF CHINA LUNAR EXPLORATION PROGRAM

机译：类似于月球探测计划第二阶段的月球软着陆任务发射窗口设计研究

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摘要

A suit of method of window calculation and trajectory design for lunar soft-landing mission like the 2nd stage of China Lunar Exploration Program is studied. Aiming at a lunar probe which passes launch phase, translunar phase, lunar orbit phase and soft-landing phase, this paper lists the engineering constraints for project like the 2nd stage of China Lunar Exploration Program. Considering constraints include position, lighting and TT&C of the feature points, combining with characteristics of the translunar trajectory, using retroversion mode of landing point, perilune, translunar injection and launch center, this paper fast calculates the launch window of the lunar probe, during which libration of the Moon in longitude is considered. Initial value of the translunar trajectory's elements are easily calculated after launch time is specified in the launch window, then the precision trajectory is obtained by search. This approach will be of important value for the launch window calculation and the orbital design in the second and third stage of China Lunar Exploration Program, and will also be of referential value for other moon explorations and planet explorations.
机译：研究了适合中国月球探测计划第二阶段的月球软着陆任务的窗口计算和轨迹设计方法。针对经过发射阶段，月底阶段，月球轨道阶段和软着陆阶段的月球探测器，本文列出了诸如“中国探月计划”第二阶段等项目的工程约束。考虑到特征点的位置，光照和测距和测控条件的约束，结合跨月轨迹的特征，采用着陆点，周线，月经注入和发射中心的逆向模式，本文快速计算了月球探测器的发射窗口。考虑到月球在经度上的解放。在发射窗口中指定发射时间后，可以轻松计算经月轨迹元素的初始值，然后通过搜索获得精确轨迹。这种方法对于中国月球探测计划第二，第三阶段的发射窗口计算和轨道设计具有重要价值，对于其他月球探测和行星探测也具有参考价值。

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