摘要
针对姿控式直接力/气动力复合控制拦截弹,提出一种基于干扰补偿和动态面方法的制导控制一体化(IGC)算法.首先设计一种适用于未知上界干扰的变增益扩张状态观测器(TVGESO),在有效保证估计精度的同时,能够减弱初始尖峰现象;然后考虑目标机动以及喷流扰动等模型不确定性,应用TVGESO在线干扰逼近补偿,基于积分滑模动态面方法设计了IGC算法;最后基于Lyapunov理论对闭环系统稳定性进行证明.数值仿真结果表明了所提出设计方案的有效性.
An integrated guidance and control（IGC） algorithm is proposed based on active disturbance compensation and dynamic surface control for the near space interceptor with aerodynamic force and reaction jets. A time-varying gain extended state obsever（TVGESO） is firstly constructed to estimate the unknown system disturbance, which can preserve the estimation accuracy as well as weakening the peaking phenomenon. Then, the model uncertainty caused by the target maneuvers and jet interaction is restrained with online estimation and compensation of the TVGESO, and the IGC algorithm is designed based on the integral sliding mode dynamic surface control. Finally, the closed loop system stability is proved by using the Lyapunov theory. Simulation results show the effectiveness of the proposed method.
作者
卢晓东
赵辉
赵斌
周军
LU Xiao-dong ZHAO Hui ZHAO Bin ZHOU Jun(Institute of Precision Guidance and Control, Northwestern Polytechnical University, Xi＇an 710072, China)
出处
《控制与决策》
EI
CSCD
北大核心
2017年第10期1782-1788,共7页
Control and Decision
基金
国家自然科学基金项目(61104194)
航天支撑基金项目(2015-HT-XGD)
关键词
制导控制一体化
复合干扰
尖峰现象
扩张状态观测器
动态面控制
integrated guidance and control
compound disturbance
peaking phenomenon
extended state observer
dynamic surface control
