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在双通道DoS攻击下对双率CPS的安全控制设计:基于SAH和基于ASP的估计技术
IEEE transactions on cybernetics
|August 22, 2025
概括
本研究介绍了面临拒绝服务 (DoS) 攻击的双速网络物理系统 (CPS) 状态估计和安全控制的先进方法,提高了系统的弹性和性能.
科学领域:
- 网络物理系统
- 控制理论
- 网络安全
背景情况:
- 由于信号异步和拒绝服务 (DoS) 攻击,双速网络物理系统 (CPS) 面临复杂的状态估计和控制挑战.
- 对传感器到控制器通道的网络攻击加剧了系统的复杂性, 降低了性能.
研究的目的:
- 在DoS攻击下调查离散时间双率CPS的状态估计和安全控制.
- 开发可靠的估计方法,尽管采用低频率的采样和DoS攻击,但仍能确保有利的状态估计.
- 设计安全控制输入以保证性能和攻击弹性.
主要方法:
- 基于信号与干扰加噪声比率和双通道概率描述的改进的样本和保留 (SAH) 估计器.
- 基于交替采样预测 (ASP) 的估计方法,使用虚拟输出和代预测信息.
- 凸优化分析用于计算估计器和控制器对随机稳定的收益.
主要成果:
- 在低频采样和DoS攻击下,SAH估计器提供了有利的状态估计.
- 与SAH相比,ASP方法通过重建完整的状态信息显著提高了控制性能.
- 安全控制输入旨在确保理想的性能和抵御攻击.
结论:
- 拟议的基于ASP的估计方法在DoS攻击下为双率CPS提供了更高的控制性能.
- 无论是SAH还是ASP方法,加上设计的安全控制,都能在闭环系统中实现随机稳定.
- 卫星和四旋翼系统的模拟验证了拟议方法的有效性和比较优势.
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