论文标题
结构化系统的执行器安全索引
Actuator Security Index for Structured Systems
论文作者
论文摘要
鉴于具有一组脆弱的执行器（和传感器）的网络，执行器的安全索引等于需要妥协的传感器和执行器数量的最小数量，以便使用上述执行器进行完全无法检测到的攻击。本文讨论了用于离散时间LTI网络系统的计算执行器安全指标的问题。首先，我们表明，在结构化的系统框架下，执行器安全索引是通用的。此后，我们提供了计算结构执行器安全指数的图理论条件。上述条件是关于在适当定义的定义（子）图上存在链接的。基于这些条件，我们提出了用于计算结构指数的算法。
Given a network with the set of vulnerable actuators (and sensors), the security index of an actuator equals the minimum number of sensors and actuators that needs to be compromised so as to conduct a perfectly undetectable attack using the said actuator. This paper deals with the problem of computing actuator security indices for discrete-time LTI network systems. Firstly, we show that, under a structured systems framework, the actuator security index is generic. Thereafter, we provide graph-theoretic conditions for computing the structural actuator security index. The said conditions are in terms of existence of linkings on appropriately-defined directed (sub)graphs. Based on these conditions, we present an algorithm for computing the structural index.
