在 denial-of-service 攻击下,具有有限视野的最佳安全跟踪控制
Jian Wang1, Wei Wang2, Xiaofeng Liang1
1Key Laboratory of Marine Intelligent Equipment and System Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
ISA transactions
|May 1, 2024
概括
本研究介绍了一种无模型的方法,用于在面临拒绝服务攻击的网络物理系统中进行安全跟踪控制. 该方法使用可变时间的Q函数来解决控制问题,而不需要系统模型.
科学领域:
- 网络物理系统 网络物理系统
- 控制理论 控制理论
- 网络安全 网络安全
背景情况:
- 网络物理系统容易受到执行器拒绝服务 (DoS) 攻击,危及跟踪控制.
- 现有的方法通常需要完整的系统模型信息,限制了它们的适用性.
研究的目的:
- 在DoS攻击下开发一种无模型的方法,用于有限地平线的最佳安全跟踪控制 (FHOSTC).
- 为了应对实现安全控制的挑战,不需要先前了解系统动态.
主要方法:
- 一个增强的时间变化的里卡蒂方程 (TVRE) 为统一系统衍生.
- 建立了DoS攻击概率的下限,以确保TVRE的可解决性.
- 建议采用基于时间变化的Q函数 (TVQF) 的无模型方法,利用时间向后计算和最小方程方法.
主要成果:
- 基于TVQF的方法成功地解决了TVRE,而不需要增强系统动态.
- 该方法在模拟的DoS攻击下证明了有效的安全跟踪控制性能.
- 模拟研究验证了开发的控制策略的有效性和稳定性.
结论:
- 拟议的无模型TVQF方法为DoS攻击下的网络物理系统中的FHOSTC提供了可行的解决方案.
- 这种方法提高了系统安全性和弹性,而不需要明确的系统模型.
- 这些发现有助于推进网络系统的安全控制策略.
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