惯性定向三轴稳定卫星姿态自适应滑模控制

在建立惯性定向三轴稳定卫星非线性耦合姿态运动模型的基础上，设计了姿态三轴稳定控制的自适应滑模变结构控制器。在控制器的设计中，考虑了小卫星惯量参数的不确定性以及外界力矩干扰的情况，利用自适应滑模变结构控制方法在线辨识干扰力矩的极值以及卫星惯量参数，并依此动态调整控制器的输出。基于Lyapunov稳定性原理证明了所设计的控制器能够使系统全局一致最终有界稳定。仿真结果表明了该控制方法的有效性和可行性。

Adaptive sliding mode attitude controller for satellites three-axisstabilized in inertial frame

An adaptive sliding mode controller is proposed for satellites three-axes-stabilized in inertial frame based on
its nonlinear and coupled attitude model. Considering that the accurate inertial parameters of satellites are very difficult to
determine and satellites on-board always suffer from some external disturbance torque, the bound of disturbance torque and
inertial parameters are estimated by utilizing adaptive sliding mode control theory. The closed-system with the proposed
controller is uniformly and ultimately bounded stable, which is proved by using Lyapunov theory. The results of simulation
show the effectiveness and feasibility of the proposed controller.