This paper addresses the problem that, the discretization of stabilizing the continuous bilateral teleoperation controllers for digital implementation may lead to instable teleoperation or poor performance. With this problem, a discrete approach for the novel proxy teleoperation control scheme under time-varying delays is considered in the paper. The principle results involve sufficient conditi...

In this paper, we focuses on the observer design problem for nonlinear neutral systems. The problem addressed that of designing a full-order observer that guarantees the asymptotically stable of the error dynamic system. The sufficient stability conditions are derived via Lyapunov–Krasovskii functionals (LKF). When these conditions, which are given in terms of linear matrix inequalities (LMIs),...

This paper investigates the observer-based adaptive stabilization control problem for a class of time-delay nonlinear systems with unknown gain using an echo state network (ESN). In order to handle functions, new recurrent neural (RNN) approximation method called ESN is utilized. It improves accuracy, reduces computing cost, and simple train. To address issue gain, Nussbaum function used, Lyapu...

In this paper, the problem of neutral-type impulsive bidirectional associative memory neural networks (NIBAMNNs) with time delays are first established by a Takagi–Sugeno (T-S) fuzzy model in which the consequent parts are composed of a set of NIBAMNNs with interval delays and Markovian jumping parameters (MJPs). Sufficient conditions to check the robust exponential stability of the derived mod...

In this note, adaptive neural control is presented for a class of strict-feedback nonlinear systems with unknown time delays. Using appropriate Lyapunov–Krasovskii functionals, the uncertainties of unknown time delays are compensated for such that iterative backstepping design can be carried out. In addition, controller singularity problems are solved by using the integral Lyapunov function and...

This work provides one of the first attempts to derive computationally tractable criteria for analyzing the stability of Linear Parameter Varying (LPV) time-delayed systems. We present both delay-independent and delay-dependent stability conditions, which are derived using appropriately selected Lyapunov-Krasovskii functionals. According to the system parameter dependence, these functionals can...

Stability of Time-Delay Systems by Keqin Gu, Vladimir L. Kharitonov, and Jie Chen, Birkhäuser, 2003, 353 pp., ISBN 0-8176-4212-9, $79.95. Reviewed by Vladimir Rasvan and Dan Popescu. The destabilizing effects of time delays are well known to control engineers. In fact, robustness against time delay has been an important and challenging problem from the earliest days of classical control. The la...

In this article, the networked filtering problem for a class of robotic manipulators with semi-Markov type parameters is investigated under passivity framework. particular, mode-dependent quantization and event-triggered communication scheme are both proposed increasing network transmission efficiency. Sufficient stability conditions first derived by choosing Lyapunov–Krasovskii functionals. Th...

This paper develops the time-delay approach to networked control systems in the presence of multiple sensor nodes, communication constraints, variable transmission delays, and sampling intervals. Due to communication constraints, only one sensor node is allowed to transmit its packet at a time. The scheduling of sensor information toward the controller is ruled by a weighted try-once-discard or...

This paper examines the problem of improved fixed-time stability for generalized delayed fractional-order systems (FOSs). As a first step, some conditions are presented in two theorems to verify (F-TS) FOSs by using Lyapunov theory and indefinite functionals, where derivative functions may not exist. Furthermore, corresponding estimated settling time is also provided. Second, results extended s...