This article is concerned with the ultimately bounded filtering problem for a class of linear time-delay systems subject to norm-bounded disturbances and impulsive measurement outliers (IMOs). The considered IMOs are modeled by sequence signals certain known minimum norm (i.e., norms all signals). In order characterize occasional occurrence IMOs, independent identically distributed random varia...

For {φ_n(x)}, x ε [0,1] an orthonormalsystem of uniformly bounded functions, ||φ_n||_{∞}≤ M

We prove that a general system of variational difference equations is uniformly exponentially stable if and only if certain associated sets are of the second category. We also deduce necessary and sufficient conditions for uniform exponential stability of systems with uniformly bounded coefficients. We apply our results for the study of exponential stability of linear skew-product flows, genera...

This paper proposes an adaptive approximation-based controller for uncertain strict-feedback nonlinear systems with unknown dead-zone nonlinearity. Dead-zone constraint is represented as a combination of a linear system with a disturbance-like term. This work invokes neural networks (NNs) as a linear-in-parameter approximator to model uncertain nonlinear functions that appear in virtual and act...

Online approximation of the optimal station keeping strategy for a fully actuated six degrees-of-freedom marine craft subject to an irrotational ocean current is considered. An approximate solution to the optimal control problem is obtained using an adaptive dynamic programming technique. The hydrodynamic drift dynamics of the dynamic model are assumed to be unknown; therefore, a concurrent lea...

This paper presents a neural network based decentralized excitation controller design for large-scale power systems. The proposed controller design considers not only the dynamics of generators but also the algebraic constraints of the power flow equations. The control signals are calculated using only local signals. The transient stability and the coordination of the subsystem control activiti...

For the trajectory tracking problem of nth-order uncertain nonlinear systems with sensor faults, a fuzzy controller based on command filtered and event-triggered technology is designed to improve error system. Concurrently, fault-tolerant control scheme introduced effectively solve sudden output failure. Additionally, proposed can also greatly avoid complexity explosion derivations virtual laws...

This paper addresses the displacement path-following problem for a class of disturbed cart-pendulum systems under fake data injection (FDI) actuator attacks. A filter operator is proposed to estimate weight vector caused by unknown attacks and disturbances, so that can be parameterized using neural networks. Then, combined with signals based on adaptive network integral sliding-mode techniques,...

In this paper, a robust adaptive control scheme is proposed for robot manipulators. The structure of controller is based on the regressor-based form of the robot model. The presented control scheme does not require a priori any knowledge for uncertainty bounds. The global stability of the closed-loop system is guaranteed by using the Lyapunov stability approach. Furthermore, in the presence of ...