The invention provides a rapid forecasting method for lunar orbit rendezvous guidance, which can realize high-precision and rapid forecasting and meet the requirements of tasks. According to the forecasting method, a gravitational field acceleration calculation method for earth orbit satellite GPS autonomous orbit determination is applied to the field of lunar orbit rendezvous, and improvement and upgrading are performed one by one aiming at the problem that the algorithm cannot be directly applied to lunar orbit rendezvous guidance strategy design; the method is suitable for a high-precision and fast algorithm required by implementation of a lunar orbit rendezvous flight control task so as to meet the requirements of the task. Specifically, the algorithm is transplanted to the field of lunar orbit application for the first time, which is not involved by previous people; for the particularity of the moon gravitational field, the magnitude of perturbation acceleration of each gravitational force is equivalent, and approximate description cannot be carried out by independently using the J2 item, the consideration of the perturbation acceleration of the J22 item is added in the algorithm, so that the calculation precision and the numerical stability of the algorithm are greatly improved.
本发明提供了一种用于月球轨道交会制导的快速预报方法,能够实现高精度、快速预报,满足任务的要求。本发明的预报方法,将用于地球轨道卫星GPS自主定轨的引力场加速度计算方法应用到月球轨道交会领域,针对该算法无法直接应用到月球轨道交会制导策略设计所存在的问题,逐一进行改进和升级,适用于月球轨道交会飞控任务实施需要的高精度、快速算法以满足任务的要求。具体地,本发明首次将该算法移植到月球轨道应用领域,这是前人没有涉及的;针对月球引力场的特殊性,各引力摄动加速度量级相当,无法单独用J2项进行近似描述的问题,在算法中增加了J22项摄动加速度的考虑,从而使得算法的计算精度和数值稳定性得到了大幅度提升。
Rapid forecasting method for lunar orbit rendezvous guidance
一种用于月球轨道交会制导的快速预报方法
2022-11-25
Patent
Electronic Resource
Chinese
IPC: | G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / B64G Raumfahrt , COSMONAUTICS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
NTRS | 1962
|Engineering Index Backfile | 1962
|Manual lunar orbit rendezvous analysis.
NTRS | 1967
|Lunar-orbit rendezvous and manned lunar landing
Engineering Index Backfile | 1962
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