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656 results on '"Zhang, Baoyong"'

132. Event-Based Adaptive Fuzzy Fixed-Time Secure Control for Nonlinear CPSs Against Unknown False Data Injection and Backlash-Like Hysteresis.

Author

Song, Shuai, Park, Ju H., Zhang, Baoyong, and Song, Xiaona

Subjects
CYBER physical systems, HIGH performance computing, NONLINEAR systems, CLOSED loop systems, CHEMICAL systems
Abstract

This article investigates the event-triggered adaptive fuzzy fixed-time secure control problem for a class of nonlinear cyber-physical systems subject to unknown deception attacks and backlashlike hysteresis. Based on an improved fractional-order command filtered backstepping method, fuzzy approximation technique, and Nussbaum gain technique, a novel adaptive practical fixed-time secure control scheme is proposed. Theoretical analyses prove that the fixed-time stability of the resulting control system and boundedness of all signals in the closed-loop system can be guaranteed by using the presented resilient controller. Especially, the given convergence time is independent of the initial states of the system and better system performance consisting of higher control accuracy and faster convergence rate can be ensured. Finally, a chemical reaction system is carried out to show the validity and superiority of the developed secure control scheme. [ABSTRACT FROM AUTHOR]

Published
2022
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142. Delay-dependent exponential stability for uncertain stochastic Hopfield neural networks with time-varying delays

Author

Zhang, Baoyong, Xu, Shengyuan, Zong, Guangdeng, and Zou, Yun

Subjects
Neural networks -- Methods, Stability -- Evaluation, Delay lines -- Methods, Neural network, Business, Computers and office automation industries, Electronics, Electronics and electrical industries
Abstract

This paper provides new delay-dependent conditions that guarantee the robust exponential stability of stochastic Hopfield type neural networks with time-varying delays and parameter uncertainties. Both the cases of the time-varying delays which are differentiable and may not be differentiable are considered. The stability conditions are derived by using the recently developed free-weighting matrices technique and expressed in terms of linear matrix inequalities. Numerical examples are provided to demonstrate the effectiveness of the proposed stability criteria. It is shown that the proposed stability results are less conservative than some previous ones in the literature. Index Terms--Delay-dependent conditions, Hopfield neural networks, robust exponential stability, stochastic neural networks, time-varying delays.

Published
2009

143. p th Moment Asymptotic Stability/Stabilization and p th Moment Observability of Linear Stochastic Systems: Generalized ℋ -Representation.

Author

Zhang, Huasheng, Xia, Jianwei, Zhang, Weihai, Zhang, Baoyong, and Shen, Hao

Subjects
STOCHASTIC systems, LINEAR systems, OBSERVABILITY (Control theory), STOCHASTIC processes, STABILITY criterion
Abstract

This article develops a generalized $\mathcal {H}$ -representation, which can transforms stochastic systems into deterministic systems. With the help of this new approach, the necessary and sufficient conditions of $p$ th moment asymptotic stability and stabilization of linear stochastic systems are addressed. Meanwhile, the generalized $\mathcal {H}$ -representation method is also applied to investigate $p$ th moment observability and $p$ th moment complete observability for the addressed systems. [ABSTRACT FROM AUTHOR]

Published
2022
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