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首頁> 外文期刊>IEEE Transactions on Automatic Control >A Moving Target Defense Control Framework for Cyber-Physical Systems
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A Moving Target Defense Control Framework for Cyber-Physical Systems

機譯：用于網(wǎng)絡物理系統(tǒng)的移動目標防御控制框架

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This paper considers the problem of efficiently and securely controlling cyber-physical systems that are operating in uncertain, and adversarial environments. To mitigate sensor, actuator attacks, and performance loss due to such attacks, we formulate a secure control algorithm that consists of a proactive and a reactive defense mechanism. The proactive mechanism, which is based on the principles of moving target defense, utilizes a stochastic switching structure to dynamically and continuously alter the parameters of the system, while hindering the attacker & x0027;s ability to conduct successful reconnaissance to the system. The unpredictability of the current actuator and sensor is optimized using an information entropy measure, which is induced by probabilistic switching. The reactive mechanism on the other side, detects potentially attacked components, namely sensors and actuators, by leveraging online data to compute an integral Bellman error. A rigorous mathematical framework is presented to guarantee the stability of the equilibrium point of the closed-loop system, and provide a quantified bound on the performance loss when utilizing both reactive and proactive mechanisms. Simulation results show the efficacy of the proposed approaches on a benchmark aircraft model.
機譯：本文考慮了有效和安全地控制在不確定和對抗環(huán)境中運營的網(wǎng)絡物理系統(tǒng)的問題。為了減輕傳感器，執(zhí)行器攻擊和由于此類攻擊而進行性能損失，我們制定了一種安全控制算法，該算法包括主動和無功防御機制?；谝苿幽繕朔烙脑淼闹鲃訖C制利用隨機開關(guān)結(jié)構(gòu)動態(tài)和連續(xù)地改變系統(tǒng)的參數(shù)，同時阻礙攻擊者和X0027的能力對系統(tǒng)進行成功偵察的能力。使用概率切換引起的信息熵測量來優(yōu)化當前執(zhí)行器和傳感器的不可預測性。通過利用在線數(shù)據(jù)來計算積分Bellman誤差，對另一側(cè)的反應機制檢測可能攻擊的組件，即傳感器和執(zhí)行器，即傳感器和執(zhí)行器。提出了一種嚴格的數(shù)學框架，以保證閉環(huán)系統(tǒng)的平衡點的穩(wěn)定性，并在利用反應性和主動機制時提供性能損失的量化界定。仿真結(jié)果表明，提出的方法對基準飛機模型的功效。

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