The invention discloses a spacecraft trajectory online planning method based on inverse dynamic motion camouflage, which relates to the technical field of spacecrafts, and comprises the following steps: constructing a spacecraft trajectory planning model based on a spacecraft orbit dynamic model, and a control capability constraint, a boundary condition constraint and a performance index corresponding to a spacecraft trajectory planning process; constructing and solving a spacecraft trajectory planning model in a discrete form by using an inverse dynamics algorithm, and obtaining a reference state variable and a reference control variable of a spacecraft between a starting position and a terminal position; based on the reference state variable and the reference control variable, establishing a spacecraft trajectory online planning model by using a motion camouflage algorithm; and solving the spacecraft trajectory online planning model by using a sequential quadratic programming algorithm and a rolling time domain control algorithm, and obtaining a state variable and a control variable of the spacecraft between the starting position and the terminal position. According to the invention, on-line planning of the spacecraft trajectory can be realized, the dimensionality of the planning problem is reduced, and the solving efficiency and the solving precision are improved.
本发明公开了一种基于逆动力学运动伪装的航天器轨迹在线规划方法,涉及航天器技术领域,包括:基于航天器轨道动力学模型、航天器轨迹规划过程对应的控制能力约束、边界条件约束和性能指标,构建航天器轨迹规划模型;利用逆动力学算法构建并求解离散形式的航天器轨迹规划模型,获取航天器在开始位置至终端位置之间的参考状态变量和参考控制变量;基于参考状态变量和参考控制变量,利用运动伪装算法建立航天器轨迹在线规划模型;利用序列二次规划算法和滚动时域控制算法求解航天器轨迹在线规划模型,获取航天器在开始位置至终端位置之间的状态变量和控制变量。本发明能够实现航天器轨迹在线规划,降低规划问题的维度,提高求解效率和求解精度。
Spacecraft trajectory online planning method based on inverse dynamic motion camouflage
一种基于逆动力学运动伪装的航天器轨迹在线规划方法
01.04.2025
Patent
Elektronische Ressource
Chinesisch
Europäisches Patentamt | 2025
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