Cooperative Observer-Based Fuzzy Tracking Control for Nonlinear MASs Under DoS Attacks
Yan Liu, Chao Deng, Xiangpeng Xie, Wei‐Wei Che, Lili Zhang, Sha Fan
Abstract
This article studies the cooperative resilient tracking control problem for nonlinear multiagent systems (MASs) under denial-of-service (DoS) attacks and time delays. In comparison to the existing distributed control results based on the output observability condition, a joint output observability condition, which is a more universal one, is considered in this article. Based on this, a novel cooperative resilient observer is designed to estimate the state of the reference system subjected to DoS attacks and time delays in the communication topology. Then, a new observed variable with high-order derivatives is constructed by designing a novel chain of low-pass filters. Furthermore, with the help of the newly constructed variables, a fuzzy controller is proposed by using the adaptive method and backstepping technology to ensure the semiglobally uniformly ultimately boundedness for tracking errors. Finally, a simulation example is included to showcase the effectiveness of the proposed method.