基于干扰观测器的导弹自动驾驶仪的反演设计  

Enhanced back-stepping control for missile autopilot based on nonlinear disturbance observer

作　　者：李前国[1] 姜长生[1] 张春雨[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016

出　　处：《电光与控制》2007年第5期130-135,共6页Electronics Optics & Control

基　　金：航空科学基金(04D52028)

摘　　要：在分析喷流干扰的基础上,建立了含有干扰放大因子的复合控制的弹体模型。针对导弹气动参数的不确定性及外界干扰对导弹控制性能的影响,利用非线性干扰观测器对干扰的逼近特性,结合反演控制设计了非线性导弹自动驾驶仪,并基于Lyapunov方法,给出了整个系统的稳定性证明。仿真结果表明,设计的控制方案不仅提高了系统响应速度,而且能够保证系统具有良好的鲁棒性。The authors present an enhanced back-stepping control structure based Nonlinear Disturbance Observer （NDO） with aerodynamic and lateral thruster. Based on the analysis the phenomenon of jet interaction, a mode of missile with jet interaction amplification factor is set up. For overcoming the disadvantages of uncertainties and unknown disturbance, the back-stepping control structure based on NDO is designed in virtue of NDO＇s approaching ability. The overall system guarantees that all signals involved are asymptotically stable by Lyapunov method. The simulation results show that this blend control method could cut down the time of response, and enhance the robust performance of system.

关 键 词：敏捷导弹 制导与控制 侧向喷流 复合控制 反演控制 非线性干扰观测器 

分 类 号：V249[航空宇航科学与技术—飞行器设计] TJ76[兵器科学与技术—武器系统与运用工程]