arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.04579eess.SYcs.SY
收藏

非线性系统的状态重构与输入输出注入联合攻击

On Joint Reconstruction of State and Input-Output Injection Attacks for Nonlinear Systems

Tianci Yang, Carlos Murguia, Chen Lv, Dragan Nesic, Chao Huang

摘要:

针对离散时间非线性系统,研究了执行器和传感器被注入(潜在无界)攻击信号时的鲁棒状态重构问题。利用冗余的传感器和执行器,并使用一个银行的未知输入观测器(UIO),我们提出了一个基于模糊的估计器能够提供渐近估计的系统状态和攻击信号的条件下,受到攻击的传感器和执行器的数量是足够小的。使用所提出的估计,我们提供了隔离受损的执行器和传感器的方法。数值例子证明了我们的方法的有效性。

英文摘要:

We address the problem of robust state reconstruction for discrete-time nonlinear systems when the actuators and sensors are injected with (potentially unbounded) attack signals. Exploiting redundancy in sensors and actuators and using a bank of unknown input observers (UIOs), we propose an observer-based estimator capable of providing asymptotic estimates of the system state and attack signals under the condition that the numbers of sensors and actuators under attack are sufficiently small. Using the proposed estimator, we provide methods for isolating the compromised actuators and sensors. Numerical examples are provided to demonstrate the effectiveness of our methods.

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。

↑