The invention discloses a lunar orbit rendezvous remote guidance rapid iterative guidance method. The method comprises the following steps: acquiring an initial orbit state corresponding to an initial moment and an orbit target state corresponding to a terminal moment; establishing a nonlinear equation set of a design variable and a terminal track state; based on the near-circular orbit element representation forms of the terminal orbit state and the orbit target state, the nonlinear equation set of the design variables and the terminal orbit state is converted; determining an iteration initial value and a convergence condition; and on the basis of the determined iteration initial value and the convergence condition, iterative solution is conducted on the converted design variable and the nonlinear equation set of the terminal track state till the convergence condition is met, the final design variable is obtained, and guidance is completed. The method is high in iteration efficiency, high in calculation speed and suitable for any orbital transfer frequency, the component of each orbital transfer can be specified at will, and the method is particularly suitable for meeting the requirements for on-orbit real-time generation of the remote guidance orbital transfer strategy of the moon orbit intersection and remote guidance strategy reconstruction under the fault condition.
本发明公开了一种月球轨道交会远程导引快速迭代制导方法,包括:获取初始时刻对应的初始轨道状态和终端时刻对应的轨道目标状态;建立设计变量与终端轨道状态的非线性方程组;基于终端轨道状态和轨道目标状态的近圆轨道要素表示形式,对设计变量与终端轨道状态的非线性方程组进行转化;确定迭代初值和收敛条件;基于确定的迭代初值和收敛条件,对转化后的设计变量与终端轨道状态的非线性方程组进行迭代求解,直至满足收敛条件,得到最终的设计变量,完成制导。本发明所述方法,迭代效率高、计算速度快,适用于任意变轨次数,各次变轨的分量可以任意指定,特别适用于月球轨道交会远程导引变轨策略在轨实时生成和故障条件下远程导引策略重构的需求。
Remote guidance rapid iterative guidance method for lunar orbit rendezvous
一种月球轨道交会远程导引快速迭代制导方法
2025-03-11
Patent
Electronic Resource
Chinese
Rapid forecasting method for lunar orbit rendezvous guidance
European Patent Office | 2022
|Bearings-Only Guidance in Cis-Lunar Rendezvous
AIAA | 2021
|Autonomous Lunar Orbit Rendezvous Guidance Based on J2-Perturbed State Transition Matrix
Online Contents | 2015
|LUNAR RENDEZVOUS GUIDANCE FOR A FIXED THRUST VEHICLE
AIAA | 1964
|