The invention discloses a phase modulation method and system for reducing shadow time on a lunar orbit by using orbit transfer. The phase modulation method comprises the following steps: judging whether a satellite is in a moon shadow or an earth shadow according to parameters such as a lunar center inertial coordinate system and a satellite position; calculating the period of a middle orbit and the semi-major axis of the middle orbit according to the orbit transfer time, taking the middle orbit as a transition orbit, and judging and calculating the total time when the satellite is in the shadow in one day; the method comprises the following steps: selecting phases reaching a moon task orbit as 1-360 degrees in sequence, calculating shadow time of each phase in a day, selecting the phase with the shortest shadow time, and if the phase with the shortest shadow time is not less than a set intersection degree, adjusting the period of a transition orbit according to the phases, and calculating a new transition orbit period and an orbit semi-major axis; and taking a new transition orbit as a standard, repeating the steps until the shadow time is shortest and the phase is smaller than the set angle, and after the transition orbit in the period is transferred to the target orbit, avoiding the influence caused by the earth shadow and the moon shadow.

    本发明公开的一种利用轨道转移减小环月轨道上阴影时间的调相方法及系统,依据月心惯性坐标系、卫星位置等参数判断卫星是否处于月亮阴影或地球阴影中;依据轨道转移的时间计算中间轨道的周期及中间轨道的半长轴,以中间轨道作为过渡轨道,判断并计算一天中卫星处于阴影中的总时间;选取到达环月任务轨道的相位依次为1—360度,计算一天中每个相位的阴影时间,选取阴影时间最短的相位,若阴影时间最短时相位不小于设定交度,则根据相位调整过渡轨道的周期,计算新的过渡轨道周期与轨道半长轴;以新的过渡轨道为标准,重复以上步骤,直至阴影时间最短时,相位小设定角度,则经过此周期的过渡轨道转移至目标轨道后,可以规避地影和月影带来的影响。


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    Title :

    Phase modulation method and system for reducing shadow time on lunar orbit by using orbit transfer


    Additional title:

    利用轨道转移减小环月轨道上阴影时间的调相方法及系统


    Contributors:
    LI HAIYANG (author) / WEI WEIDONG (author) / CUI WEI (author) / CHEN SHUHAI (author) / GONG MINGYU (author) / JIN JIE (author) / XIA XINHUA (author) / LI ZHEN (author) / TIAN JIANGUO (author)

    Publication date :

    2024-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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