Security Synthesis for Cyber–Physical Systems
本文利用区域集合理论研究网络物理系统在隐蔽攻击下的安全综合问题，通过L∞性能指标和攻击诱导状态集半径分别刻画控制性能与安全水平，给出优化安全性的充分设计条件。
This article studies the security synthesis of cyber–physical systems subject to stealthy attacks via zonotopic set theory. The set is used to quantify the effect of potential stealthy attacks on systems. Control performance and security level are characterized using <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$L_{\infty }$ </tex-math></inline-formula> performance index and the radius of the attack-induced state set, respectively. Sufficient design conditions are given to optimize the security while guaranteeing a prescribed level of control performance. Simulation examples are conducted to demonstrate the effectiveness of the proposed method.