This paper addresses the problem of consensus-based state estimation for interval type-2 Takagi–Sugeno (T–S) fuzzy time-delay systems over a wireless sensor network under deception attacks, partial information exchange and switching sensor-network topologies. The switching-topology-dependent estimators are constructed using interval type-2 fuzzy models considering the cases where the premise variables are available and unavailable. By means of the mode-dependent dwell time approach, sufficient conditions are established such that the estimation error system is exponentially and ultimately bounded. In addition, a fuzzy Lyapunov functional is utilized to derive the existence conditions of estimators for the case that the premise variable are unavailable. Two illustrative examples are provided to verify the effectiveness of the proposed method.

本文解决了在欺骗性攻击，部分信息交换和传感器网络拓扑切换的情况下，无线传感器网络上间隔2型Takagi-Sugeno（TS）模糊时滞系统基于共识的状态估计问题。考虑到前提变量可用和不可用的情况，使用区间2型模糊模型构造依赖于开关拓扑的估计器。通过依赖于模式的停留时间方法，可以建立足够的条件，从而使估计误差系统成指数增长并最终受到限制。另外，在前提变量不可用的情况下，利用模糊Lyapunov函数推导估计量的存在条件。提供了两个说明性示例，以验证所提出方法的有效性。