The Experts below are selected from a list of 57333 Experts worldwide ranked by ideXlab platform
Su Chong Joo - One of the best experts on this subject based on the ideXlab platform.
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adaptive h synchronization for uncertain chaotic systems with External Disturbance
Communications in Nonlinear Science and Numerical Simulation, 2010Co-Authors: Choon Ki Ahn, Sung Tae Jung, Sun Kyung Kang, Su Chong JooAbstract:Abstract In this paper, we propose a new adaptive H ∞ synchronization scheme for chaotic systems with unknown parameter and External Disturbance. Based on Lyapunov stability theory and linear matrix inequality (LMI) approach, the adaptive H ∞ synchronization controller is presented to not only guarantee stable synchronization but also reduce the effect of External Disturbance to an H ∞ norm constraint. The proposed controller with adaptive law can be obtained by solving the LMI problem. The adaptive H ∞ synchronization problems for Chua’s chaotic system and hyperchaotic Rossler system are presented to show the effectiveness of the proposed chaos synchronization scheme.
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Adaptive H∞ synchronization for uncertain chaotic systems with External Disturbance
Communications in Nonlinear Science and Numerical Simulation, 2010Co-Authors: Choon Ki Ahn, Sung Tae Jung, Sun Kyung Kang, Su Chong JooAbstract:Abstract In this paper, we propose a new adaptive H ∞ synchronization scheme for chaotic systems with unknown parameter and External Disturbance. Based on Lyapunov stability theory and linear matrix inequality (LMI) approach, the adaptive H ∞ synchronization controller is presented to not only guarantee stable synchronization but also reduce the effect of External Disturbance to an H ∞ norm constraint. The proposed controller with adaptive law can be obtained by solving the LMI problem. The adaptive H ∞ synchronization problems for Chua’s chaotic system and hyperchaotic Rossler system are presented to show the effectiveness of the proposed chaos synchronization scheme.
Choon Ki Ahn - One of the best experts on this subject based on the ideXlab platform.
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strictly passive fir filtering for state space models with External Disturbance
Aeu-international Journal of Electronics and Communications, 2012Co-Authors: Choon Ki AhnAbstract:Abstract This paper proposes a new strictly passive filter with a finite impulse response (FIR) structure for linear state-space signal models with External Disturbance. This filter is called a strictly passive FIR filter (SPFF). We apply the strict passivity concept to derive a new linear filter with FIR structure and quasi-deadbeat property. The gain matrix of the proposed SPFF in this paper can be determined by resorting to the solution to a linear matrix inequality (LMI) feasibility problem. An illustrative example is presented to show the validity of the SPFF.
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criterion for the elimination of overflow oscillations in fixed point digital filters with saturation arithmetic and External Disturbance
Aeu-international Journal of Electronics and Communications, 2011Co-Authors: Choon Ki AhnAbstract:Abstract In this paper, a new criterion for the H ∞ elimination of overflow oscillations in fixed-point digital filters with saturation arithmetic and External Disturbance is presented. The criterion not only guarantees exponential stability but also reduces the effect of External Disturbance to an H ∞ norm constraint. The criterion takes the form of linear matrix inequality (LMI) and, hence, is computationally tractable. An illustrative example is given to demonstrate the effectiveness of the proposed criterion.
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adaptive h synchronization for uncertain chaotic systems with External Disturbance
Communications in Nonlinear Science and Numerical Simulation, 2010Co-Authors: Choon Ki Ahn, Sung Tae Jung, Sun Kyung Kang, Su Chong JooAbstract:Abstract In this paper, we propose a new adaptive H ∞ synchronization scheme for chaotic systems with unknown parameter and External Disturbance. Based on Lyapunov stability theory and linear matrix inequality (LMI) approach, the adaptive H ∞ synchronization controller is presented to not only guarantee stable synchronization but also reduce the effect of External Disturbance to an H ∞ norm constraint. The proposed controller with adaptive law can be obtained by solving the LMI problem. The adaptive H ∞ synchronization problems for Chua’s chaotic system and hyperchaotic Rossler system are presented to show the effectiveness of the proposed chaos synchronization scheme.
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Adaptive H∞ synchronization for uncertain chaotic systems with External Disturbance
Communications in Nonlinear Science and Numerical Simulation, 2010Co-Authors: Choon Ki Ahn, Sung Tae Jung, Sun Kyung Kang, Su Chong JooAbstract:Abstract In this paper, we propose a new adaptive H ∞ synchronization scheme for chaotic systems with unknown parameter and External Disturbance. Based on Lyapunov stability theory and linear matrix inequality (LMI) approach, the adaptive H ∞ synchronization controller is presented to not only guarantee stable synchronization but also reduce the effect of External Disturbance to an H ∞ norm constraint. The proposed controller with adaptive law can be obtained by solving the LMI problem. The adaptive H ∞ synchronization problems for Chua’s chaotic system and hyperchaotic Rossler system are presented to show the effectiveness of the proposed chaos synchronization scheme.
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A New Robust Training Law for Dynamic Neural Networks with External Disturbance: An LMI Approach
Discrete Dynamics in Nature and Society, 2010Co-Authors: Choon Ki AhnAbstract:A new robust training law, which is called an input/output-to-state stable training law (IOSSTL), is proposed for dynamic neural networks with External Disturbance. Based on linear matrix inequality (LMI) formulation, the IOSSTL is presented to not only guarantee exponential stability but also reduce the effect of an External Disturbance. It is shown that the IOSSTL can be obtained by solving the LMI, which can be easily facilitated by using some standard numerical packages. Numerical examples are presented to demonstrate the validity of the proposed IOSSTL.
Wei Wang - One of the best experts on this subject based on the ideXlab platform.
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robust control for the relay icpt system under External Disturbance and parametric uncertainty
IEEE Transactions on Control Systems and Technology, 2017Co-Authors: Chenyang Xia, Wei Wang, Guoping Chen, Shijie Zhou, Yanjing SunAbstract:The relay inductively coupled power transfer (ICPT) system is a typical nonlinear and high-order system that is composed of the inverter, the resonant tanks, the relay structure, the rectifier, and the filter. Additionally, the Disturbance signals (such as External Disturbance) and dynamic perturbations (such as parametric uncertainties) are unavoidable in this system. Therefore, a closed-loop system with an $H_{\infty }$ controller is designed under the External Disturbance and parametric uncertainties in this paper. In order to achieve the robust stability and the robust performance (RSRP) of the closed-loop system with an $H_{\infty }$ controller, the generalized state-space averaging method is used to establish the linear model of the relay ICPT system first, and a linear fractional transformation of the nominal model and the parametric uncertainties is discussed then. The RSRP of the designed $H_{\infty }$ controller is tested by the structured singular value. The results of the practical experiment further verify the RSRP of the closed-loop system.
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cooperative robust containment control for general discrete time multi agent systems with External Disturbance
Iet Control Theory and Applications, 2017Co-Authors: Hongjing Liang, Wei WangAbstract:This study investigates the cooperative containment control problem for heterogeneous discrete-time linear multi-agent systems. The structures of the systems are uncertain, and there exists more than one leader in the authors' systems. For these leaders, it is unnecessary to establish links exchanging information between them. Instead, the authors assume that at least one leader has directed paths to all the follower nodes. A distributed discrete-time compensator is presented to estimate the convex hull information of the leaders. Then, based on the estimation of the convex hull information of the reference outputs, they design a novel distributed internal model compensator to tackle the uncertain parts of the dynamics. Finally, a distributed dynamic output feedback approach is utilised to study the distributed systems with External Disturbance under the directed communication topology. A numerical example is provided to illustrate the validity of the theoretical results.
Maopeng Ran - One of the best experts on this subject based on the ideXlab platform.
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Time-varying formation control for unmanned aerial vehicles with External Disturbances:
Transactions of the Institute of Measurement and Control, 2019Co-Authors: Yu'ang Liu, Chaoyang Dong, Qing Wang, Maopeng RanAbstract:Time-varying formation control for unmanned aerial vehicles (UAVs) swarm systems with External Disturbances is investigated via active Disturbance rejection control (ADRC). The External Disturbance...
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anti windup design for uncertain nonlinear systems subject to actuator saturation and External Disturbance
International Journal of Robust and Nonlinear Control, 2016Co-Authors: Maopeng Ran, Qing Wang, Chaoyang DongAbstract:Summary A novel anti-windup design method is provided for a class of uncertain nonlinear systems subject to actuator saturation and External Disturbance. The controller considered incorporates both an active Disturbance rejection controller as well as an anti-windup compensator. The dynamical uncertainties and External Disturbance are treated as an extended state of the plant, and then estimate it using an extended state observer and compensate for it in the control action, in real time. The anti-windup compensator produces a signal based on the difference between the controller output and the saturated actuator output, and then augment the signal to the control to deal with the windup phenomenon caused by actuator saturation. We first show that, with the application of the proposed controller, the considered nonlinear system is asymptotically stable in a region including the origin. Then, in the case that the controller in linear form, we establish a linear matrix inequality-based framework to compute the extended state observer gain and the anti-windup compensation gain that maximize the estimate of the domain of attraction of the resulting closed-loop system. The effectiveness of the proposed method is illustrated by a numerical example. Copyright © 2016 John Wiley & Sons, Ltd.
Sung Tae Jung - One of the best experts on this subject based on the ideXlab platform.
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adaptive h synchronization for uncertain chaotic systems with External Disturbance
Communications in Nonlinear Science and Numerical Simulation, 2010Co-Authors: Choon Ki Ahn, Sung Tae Jung, Sun Kyung Kang, Su Chong JooAbstract:Abstract In this paper, we propose a new adaptive H ∞ synchronization scheme for chaotic systems with unknown parameter and External Disturbance. Based on Lyapunov stability theory and linear matrix inequality (LMI) approach, the adaptive H ∞ synchronization controller is presented to not only guarantee stable synchronization but also reduce the effect of External Disturbance to an H ∞ norm constraint. The proposed controller with adaptive law can be obtained by solving the LMI problem. The adaptive H ∞ synchronization problems for Chua’s chaotic system and hyperchaotic Rossler system are presented to show the effectiveness of the proposed chaos synchronization scheme.
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Adaptive H∞ synchronization for uncertain chaotic systems with External Disturbance
Communications in Nonlinear Science and Numerical Simulation, 2010Co-Authors: Choon Ki Ahn, Sung Tae Jung, Sun Kyung Kang, Su Chong JooAbstract:Abstract In this paper, we propose a new adaptive H ∞ synchronization scheme for chaotic systems with unknown parameter and External Disturbance. Based on Lyapunov stability theory and linear matrix inequality (LMI) approach, the adaptive H ∞ synchronization controller is presented to not only guarantee stable synchronization but also reduce the effect of External Disturbance to an H ∞ norm constraint. The proposed controller with adaptive law can be obtained by solving the LMI problem. The adaptive H ∞ synchronization problems for Chua’s chaotic system and hyperchaotic Rossler system are presented to show the effectiveness of the proposed chaos synchronization scheme.
