【摘要】 针对小型月球探测器三轴姿态高指向精度和高稳定度的要求 ,采用欧拉动力学和四元数方法描述 ,建立了小型月球探测器环月阶段动力学模型 ,分析了由 3个轻型反作用轮正交安装组成的姿态稳定控制系统 ,给出了一种拟PD姿态指向控制规律。对所设计的指向控制律进行了数学仿真 ,结果表明可达到 0 .0 1°/s的稳定度和 0 .3°的指向精度 ,验证了该控制规律的可行性。更多还原

【Abstract】 To meet the request of high-precision and high-stabilization attitude control, the model for lunar explorer around lunar is built with Euler dynamics and quaternion and the attitude control system based on reaction wheels is analyzed and the control law is designed with assimilated PD control. Math simulation result is provided, which indicates that the control law is effective. Pointing precision achieves 0 3° and degree of stability achieves 0.01°/s.更多还原