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arXiv 2204.03217eess.SYcs.SY
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非线性控制系统对隐身传感器攻击的弹性

Resiliency of Nonlinear Control Systems to Stealthy Sensor Attacks

Amir Khazraei, Miroslav Pajic

摘要:

在这项工作中,我们专注于分析非线性动态控制系统的脆弱性隐形传感器攻击。我们首先通过利用Neyman-Pearson引理以最一般的形式定义隐形攻击的概念;具体地说,如果攻击是隐形的(即,未被任何入侵检测器检测到--即,检测的概率并不比随机猜测好。然后,我们提供了一个充分条件下,一个非线性控制系统是容易受到隐形攻击,在移动系统到一个不安全的区域,由于攻击。特别是,我们表明,如果闭环系统是递增指数稳定的,而开环植物是递增不稳定的,那么系统是容易受到隐形但影响力的攻击传感器。最后,我们说明了我们的研究结果的案例研究。

英文摘要:

In this work, we focus on analyzing vulnerability of nonlinear dynamical control systems to stealthy sensor attacks. We start by defining the notion of stealthy attacks in the most general form by leveraging Neyman-Pearson lemma; specifically, an attack is considered to be stealthy if it is stealthy from (i.e., undetected by) any intrusion detector -- i.e., the probability of the detection is not better than a random guess. We then provide a sufficient condition under which a nonlinear control system is vulnerable to stealthy attacks, in terms of moving the system to an unsafe region due to the attacks. In particular, we show that if the closed-loop system is incrementally exponentially stable while the open-loop plant is incrementally unstable, then the system is vulnerable to stealthy yet impactful attacks on sensors. Finally, we illustrate our results on a case study.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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