摘要
信息物理系统(CPSs)的网络安全问题日益突出.为确保CPSs的安全运行和数据可靠性,研究无人水面船艇(USVs)在拒绝服务(DoS)攻击和虚假数据注入(FDI)攻击下的分布式分阶弹性状态估计问题.首先,提出一种基于随机加密技术的隐私保护模型,分析在FDI和DoS联合攻击以及FDI双通道攻击的不同场景下,攻击对估计误差和系统估计性能的影响;其次,为了抵御FDI攻击,数据在整个通信过程中都进行加密处理,为防御DoS攻击,提出一种加密补偿机制;然后,由于开放的网络环境使USV在数据传输过程中会遭遇联合攻击而威胁系统状态的真实性,构造一种分布式分阶弹性状态系统来抵抗联合攻击,保证获得CPS的真实状态;最后,通过对无人水面船艇的速度状态的仿真和对比实验,验证所提出方法的有效性.
The issue of cyber security for cyber-physical systems(CPSs)has become increasingly prominent in recent years.To ensure the secure operation of CPSs and the reliability of data,this study investigates the problem of distributed multi-level elastic state estimation for unmanned surface vessels(USVs)under denial-of-service(DoS)attacks and false data injection(FDI)attacks.First,a privacy-preserving model based on stochastic encryption technology is proposed,and the impact of the attack on the estimation error and system estimation performance is analyzed under different scenarios of the joint FDI and DoS attacks,and FDI dual-channel attacks.Then,to defend against FDI attacks,data is encrypted throughout the communication process.To counter DoS attacks,an encryption compensation mechanism is introduced.The open network environment exposes USVs to the risk of combining attacks during data transmission.These attacks threaten the authenticity of the states of the system's state.To address this,a distributed multi-level elastic state system is constructed to resist combined attacks and ensure the acquisition of the actual states of the CPS.Finally,through simulation and comparative experiments on the velocities states of USVs,the effectiveness of the proposed methods is validated.
作者
刘锦铭
刘莉
胡鑫
张淑宁
李亦昊
王增锋
LIU Jin-ming;LIU Li;HU Xin;ZHANG Shu-ning;LI Yi-hao;WANG Zeng-feng(School of Information and Electrical Engineering,Ludong University,Yantai 264025,China;School of Mathematics and Statistics,Ludong University,Yantai 264025,China;Ulsan Ship and Ocean College,Ludong University,Yantai 264025,China)
出处
《控制与决策》
北大核心
2025年第7期2326-2336,共11页
Control and Decision
基金
国家自然科学基金项目(62273172,61903172)
山东省自然科学基金项目(ZR2023MF105,ZR2022MF231,ZR2024MF055,ZR2022MF292)
山东省高等教育机构优秀青年创新团队项目(2021KJ042)
烟台市科技创新发展计划项目(2024JCYJ092).
关键词
信息物理系统
虚假数据注入攻击
拒绝服务攻击
隐私保护
安全状态估计
无人水面船艇
cyber-physical system
false data injection attack
denial-of-service attack
privacy protection
secure state estimation
unmanned surface vessel
作者简介
刘锦铭(2000−),男,硕士生,主要研究方向为信息物理系统安全性、分布式安全状态估计,E-mail:ljmldu605@163.com;通信作者:刘莉(1981−),女,副教授,博士,硕士生导师,主要研究方向为分布式信息融合、状态估计,E-mail:liulildu@163.com;胡鑫(1989−),男,副教授,博士,硕士生导师,主要研究方向为抗干扰控制、智能控制,E-mail:huxinsea@163.com;张淑宁(1983−),男,副教授,博士,硕士生导师,主要研究方向流程工业过程建模、控制与优化,E-mail:zhangshn 0221@163.com;李亦昊(1987−),男,副教授,博士,硕士生导师,主要研究方向为智能传输、大型语言模型,E-mail:yihao.li@ldu.edu.cn;王增锋(1982−),女,讲师,博士,主要研究方向为无线传感器网络、卫星导航与通信,E-mail:wzf_ldu@163.com.
