摘要
本文考虑了拒绝服务攻击下的网络化控制系统的H∞输出反馈控制问题.拒绝服务攻击的特征表现为能量有限和周期类型,它攻击无线网络通道进而退化系统性能.在系统状态部分未知的前提下,为了保证被控系统的稳定性和H∞性能指标,通过设计基于观测器输出反馈控制器,使得网络化控制系统在丢包和拒绝服务攻击下仍然保持稳定和预定性能.最后数值例子验证了所设计的控制器是有效的.
This paper is concerned with H∞output feedback control problem of networked control systems under denial⁃of⁃service attacks.Denial⁃of⁃service attacks are characterized by energy constraint jamming signal with periodic strategy,which attack wireless network channels and degrade system performance.Under the premise that the state of the system is partly unknown,by designing the observer⁃based output feedback controller,networked control systems under packet loss and denial⁃of⁃service attacks can maintain stable and pre⁃specified performance level.Finally,a numerical example is presented to verify the effectiveness of the designed controller.
作者
赵宁
张会焱
石碰
ZHAO Ning;ZHANG Huiyan;SHI Peng(College of Automation,Harbin Engineering University,Harbin 150001;National Research Base of Intelligent Manufacturing Service,Chongqing Technology and Business University,Chongqing 400067)
出处
《南京信息工程大学学报（自然科学版）》
CAS
2020年第3期279-283,共5页
Journal of Nanjing University of Information Science & Technology（Natural Science Edition）
基金
国家自然科学基金(61773131)
重庆市教委重大项目(KJZD⁃M201900801)
重庆市教委青年项目(KJQN201900831)。
关键词
网络化控制系统
拒绝服务攻击
丢包
稳定性
H∞性能指标
networked control systems
denial⁃of⁃service attacks
packet loss
stability
H∞performance level
