非匹配不确定网络离散滑模控制及在导弹姿态控制中的应用  

Discrete-time Sliding Mode Controller for Linear Time-varying Systems with Network Induced Time Delay and Application to Missile Attitude Control System

作　　者：禹春来[1] 许化龙[1] 

机构地区：[1]第二炮兵工程学院,西安710025

出　　处：《航天控制》2008年第6期33-37,共5页Aerospace Control

摘　　要：针对具有模型不确定和时变干扰的线性离散时滞网络控制系统,提出了一种新的滑模控制器的设计方法。证明系统在该控制器的控制下,全局一致有界收敛,并给出了收敛的界。该方法降低了常规滑模控制中的抖振并增强了系统的鲁棒性。由于不需要如常规离散滑模控制那样判断扰动和不确定的界,使该设计方法简单易行,并降低了系统抖振现象。最后将其应用在导弹姿态控制系统的设计中,取得了良好的效果。A discrete-time sliding mode controller for linear time-varying systems with time-delay is pro- posed. The proposed method guarantees that the system state is globally uniform ultimately bounded in the presence of time-varying disturbance and uncertainty and network induced time-delay. The control law is applied to design of missile attitude control system. Simulation result show the controller can reduce system chattering and have strong robustness.

关 键 词：离散变结构控制 网络诱导延时 控制率 导弹姿态控制 抖振 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]