基于鲁棒自适应反步法的航天器姿态跟踪控制

针对存在未知惯量矩阵和外干扰的刚体航天器姿态跟踪,提出了一种鲁棒自适应控制方法。综合自适应反步法和非线性L2增益干扰抑制方法,用自适应反步法构造系统的Lyapunov函数,获得了具L2增益的鲁棒自适应控制器,以保证姿态跟踪误差系统为一致最终有界稳定,确保估计的航天器惯量参数的有界性,并使从外干扰输入到评价输出的L2增益不大于给定值。仿真结果验证了方法的有效性和可行性。

Spacecraft Attitude Tracking Control Based on Robust Adaptive Backstepping Approach

A robust adaptive control approach was presented for the attitude tracking problem of the rigid spacecraft with the unkown inertia matrix and external disturbances in this paper.The proposed control approach was a combination of adaptive backstepping approach and nonlinear L2-gain disturbance attenuation method.The Lyapunov functions of the system were constructed by the adaptive backstepping approach,and a nonlinear robust adaptive controller with L2-gain was obtained,which could ensure that the attitude t...