The invention discloses a communication coverage constraint-oriented earth-moon balance point task orbit rapid determination method, and belongs to the technical field of aerospace. The implementationmethod comprises the steps of establishing an earth-moon rotating coordinate system, determining an approximate analytical solution of a Halo orbit, obtaining an accurate solution by utilizing a differential correction method, and generating a plurality of Halo orbits for communication constraint amplitude calculation; conducting meshing on a back area of the moon, and calculating the geometricalrelationship between feature sample points and the Halo orbits; selecting characteristic geometric parameters according to communication constraint indexes, constructing a regression equation for thecommunication coverage constraint, and determining a quantitative relation between the communication constraint and the orbit amplitude as well as the landing point through the regression equation; and according to the task constraints, rapidly evaluating communication conditions by utilizing the regression equation, and realizing relay task orbit determination. The method can achieve the quick determination of task orbits with different communication constraints, guarantees the communication coverage of a landing point at the far side of the moon, and has the advantage of high orbit determination efficiency.
本发明公开的面向通讯覆盖约束的地月平衡点任务轨道快速确定方法,属于航空航天技术领域。本发明实现方法为:建立地月旋转坐标系,确定Halo轨道的近似解析解并利用微分修正方法得到精确解,生成若干用于通讯约束振幅计算的Halo轨道;对月球背面区域进行网格化分,计算特征样本点与Halo轨道的几何关系。根据通讯约束指标,选取特征几何参数,构建面向通讯覆盖约束的回归方程,通过所述回归方程确定通讯约束与轨道振幅及着陆点的定量关系;根据任务约束,利用回归方程快速评估通讯条件,实现中继任务轨道确定。本发明能够实现不同通讯约束的任务轨道快速确定,确保月球背面着陆点的通讯覆盖,具有轨道确定效率高的优点。
Communication coverage constraint-oriented earth-moon balance point task orbit rapid determination method
面向通讯覆盖约束的地月平衡点任务轨道快速确定方法
2020-08-21
Patent
Electronic Resource
Chinese
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