摘要
针对高速机动目标拦截过程中存在目标机动信息未知等问题,提出一种结合有限时间收敛的非线性干扰观测器与动态面反步设计的复合控制导弹制导控制一体化设计方法。首先,建立了姿控模式复合控制导弹制导控制一体化模型,采用有限时间收敛的非线性干扰观测器估计目标加速度信息、建模误差以及气动参数不确定等信息。其次,基于动态面的反步法设计了一体化控制律,避免了传统反步法的“微分爆炸”问题。最后,采用Lyapunov理论分析了闭环系统的稳定性。数学仿真结果验证了所设计的复合控制导弹制导控制一体化算法的正确性和有效性。
A novel integrated guidance and control( IGC) law for blended control missiles combining the finite time stable nonlinear disturbance observer( NDO) and the dynamic surface control are proposed to solve the problem of highly maneuvering target. Firstly,IGC model is given based on the dual control missiles,NDO which converges in finite time is used to estimate the target maneuvers,model errors and variation of the aerodynamic parameters. Then,in order to avoid the "computation explosion",the IGC law is designed based on the back stepping method of dynamic surface. Lastly,it is proved that the closed loop system is stable by using the Lyapunov stability theorem. Simulation results show the superiority and effectiveness of the control scheme.
作者
毛柏源
李君龙
张锐
叶松青
MAO Bo-yuan;LI Jun-long;ZHANG Rui;YE Song-qing(Beijing Institute of Electronic System Engineering,Beijing 100854,China;The Second Research Academy of CASIC,Beijing 100854,China;China Shipbuilding Equipment & Materials Northeast Corporation,Liaoning Shenyang 110011,China)
出处
《现代防御技术》
2019年第3期56-63,共8页
Modern Defence Technology
关键词
制导控制一体化
复合控制
非线性干扰观测器
有限时间收敛
动态面
integrated guidance and control
dual control
nonlinear disturbance observer
finite time convergence
dynamic surface
