This article investigates the defense control problem for sampled-data Takagi-Sugeno (T-S) fuzzy systems with multiple transmission channels against asynchronous denial-of-service (DoS) attacks. Firstly, a new switching security control method is proposed to tolerate the asynchronous DoS attacks that act independently on each channel. Then, based on switching strategy, the resulting augmented sampled-data system can be converted into new switched systems including several stable subsystems and one open-loop subsystem. Besides, by applying the piecewise Lyapunov-Krasovskii (L-K) function method, membership functions (MFs) dependent sufficient conditions are derived to ensure the exponential stability of newly constructed switching systems. Moreover, quantitative relations among the sampling period, the exponential decay rate, and the rate of all channels being fully attacked and not being completely attacked are established. Finally, simulation examples show the effectiveness of the developed defense control approach.

本文研究了针对异步拒绝服务 (DoS) 攻击的具有多个传输通道的采样数据 Takagi-Sugeno (TS) 模糊系统的防御控制问题。首先，提出了一种新的交换安全控制方法来容忍在每个信道上独立作用的异步DoS攻击。然后，基于切换策略，得到的增广采样数据系统可以转换为新的切换系统，包括几个稳定子系统和一个开环子系统。此外，通过应用分段 Lyapunov-Krasovskii (LK) 函数方法，推导出依赖于隶属函数 (MF) 的充分条件，以确保新建切换系统的指数稳定性。此外，采样周期、指数衰减率、并建立所有通道被完全攻击和未被完全攻击的比率。最后，仿真实例显示了所开发的防御控制方法的有效性。