摘要
针对高超声速飞行器轨迹高度和速度跟踪控制问题,基于纵向动力学的输入/输出线性化模型,设计了递阶滑模控制器和非线性扰动观测器,用于解决系统存在不确定性问题和执行机构带有死区非线性问题,对于所设计的控制器和观测器进行了稳定性分析,并且通过仿真验证了本文提出的方法能够提高系统的收敛速度和收敛精度并能克服执行机构死区的影响。
For hypersonic vehicle trajectory tracking control altitude and speed, based on the input / output linear model of longitudinal dynamics designed hierarchical sliding mode controller and nonlinear disturbance observer,there is uncertainty for problem-solving system and execute dead bodies with nonlinear problems,for the design of the controller and the observer stability analysis,And the simulation results show that the proposed method can improve the convergence rate and convergence precision of the system and can overcome the influence of the dead zone.
出处
《电子测试》
2016年第1期4-5,共2页
Electronic Test
关键词
高超声速飞行器
非线性
递阶滑模
扰动观测器
Hypersonic aircraft
Nonlinear
Hierarchical sliding mode
Disturbance observer
