CAJ | 학술논문

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。
침대심공탐측기자태약속궤동문제，제출일충기우대수세함수적다약속자태궤동규화방법。수선，정의료량충자태지향약속，즉금지약속화강제약속，병이용금지약속화강제약속적성질구건료대수세함수작위Lyapunov 함수；재차기출상채용개진퇴보법설계료탐측기자태궤동공제기。수치방진결과표명：해방법불부재다약속정황하능구자주구출안전적궤동로경，이차재분석화구해상계산효솔교쾌，대우성상자원유한적심공탐측기구유실제운용개치。
A multi-constrained attitude maneuver planning method based on logarithmic potential function is proposed in this paper for attitude maneuver problem of deep space explorer.Firstly,two kinds of pointing constraints—forbidden constraint and mandatory constraint are defined, which are used to build alogarithmic potential function.This logarithmic potential function is chosen as the Lyapunov function.On this basis an attitude maneuver controller is designed via the improved back-stepping method.Numerical simulation results show that by this method,a safe attitude maneuver path could be autonomously planned out under complex constraints,and computational efficiency meets the requirements.So it has practical application for deep space explorer with limited resources.