Recently, The research team led by Professor Wang Youqing from the College of Information Science and Technology of Beijing University of Chemical Technology published a regular paper titled "Resilient Distributed Control for Uncertain Nonlinear Interconnected Systems under Replay Cyber-Attacks" in IEEE Transactions on Automatic Control.
This work proposes a distributed adaptive control method for nonlinear interconnected systems that may be affected by replay network attacks. Under the framework of adaptive approximation, a distributed controller and parameter estimator were designed by using the backstepping method. The stability of the distributed control system when under attack was analyzed, and the local replay attack and the propagation effect of adjacent attacks were considered simultaneously. In order to quantify the resilience of the interconnected system under the action of replay attacks, the boundaries of the duration of each attack and the rest time between two consecutive attacks were derived. Specifically, when the duration of each attack is less than the designed upper limit, the closed-loop interconnection system maintains asymptotic stability. Furthermore, if the rest time between two consecutive attacks is greater than the proposed limit, all signals of the closed-loop system are guaranteed to be bounded.
The first author of this article is Wang Youqing, a professor, doctoral supervisor, IET Fellow, and currently the dean of the College of Information Science and Technology. The first author of the student is Li Ying, a master's student of the 2022 grade at the College of Information Science and Technology, Beijing University of Chemical Technology. The corresponding author, Zhao Dong, is currently a professor at Beihang University. He obtained his bachelor's degree and doctoral degree from the College of Information Science and Technology at Beijing University of Chemical Technology in 2011 and 2016 respectively.
"IEEE Transaction on Automatic Control" is the flagship journal of the IEEE Control Systems Society. It was founded in 1956 and is dedicated to publishing high-level papers on the basic theories, designs and applications in the field of systems and control. It is recognized as one of the top journals in the international field of control and automation. It is also a Top journal of the Chinese Academy of Sciences, representing the top level of scientific research in the field of control.