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针对深空探测器姿态约束机动问题,提出一种基于对数势函数的多约束姿态机动规划方法。首先,定义了两种姿态指向约束,即禁止约束和强制约束,并利用禁止约束和强制约束的性质构建了对数势函数作为Lyapunov函数;在此基础上采用改进退步法设计了探测器姿态机动控制器。数值仿真结果表明:该方法不仅在多约束情况下能够自主求出安全的机动路径,而且在分析和求解上计算效率较快,对于星上资源有限的深空探测器具有实际运用价值。
Aiming at the attitude constraint maneuver of deep space probe, a multi-constraint maneuver planning method based on logarithmic potential function is proposed. Firstly, two attitude-directed constraints are defined, that is, forbidden constraints and forcible constraints. By using the properties of forbidden constraints and forcible constraints, a log-potential function is constructed as a Lyapunov function. On the basis of this, Controller. The numerical simulation results show that this method can not only find a safe maneuver path under multiple constraints, but also has high computational efficiency in analysis and solution. It is of practical value for deep space probes with limited resources.