基于复合执行机构的再入弹头自适应反演控制

为了提高再入弹头命中精度和机动突防能力, 将质量滑块和单框架控制力矩陀螺(SGCMG) 配合使用, 以在弹头再入全过程中产生足够的姿态控制力矩. 针对再入系统物理参数及外界环境干扰的不确定性, 利用反演方法设计再入弹头姿态自适应控制器. 该控制器可以对转动惯量不确定性进行自适应补偿, 并且有效抑制力矩干扰对姿态控制系统的影响. 对某型再入弹头的仿真研究表明, 所提出的控制器可以实现姿态角的良好跟踪.

Adaptive backstepping control of reentry warhead with hybrid actuators

To improve the impact accuracy and maneuvering penetration ability of reentry warhead, hybrid actuators with single gimbal control moment gyroscopes(SGCMGs) and moving masses are applied to produce the sufficient moment for attitude control during the whole reentry process. Taking into account the uncertainty of physical parameters and external environment disturbances, the adaptive attitude controller is designed based on the backstepping control method, which can implement adaptive compensation to the uncertainty of moment of inertia and inhibit the effects of the moment disturbances to the attitude control system effectively. Simulation results show that the adaptive backstepping controller has a good tracking performance, and the attitude control strategy is feasible.