• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.985-989
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• 2005

This paper presents chaos synchronization between two different chaotic systems using nonlinear control method. The proposed technique is applied to achieve chaos synchronization for the Lorenz and Rossler dynamical systems. Numerical simulations are also implemented to verify the results.

• 제어로봇시스템학회논문지
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• 제14권7호
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• pp.624-628
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• 2008

This paper is concerned with multiple motor control using a distributed network control method. Speed and position of multiple motors are synchronized using clock synchronized distributed controllers. CAN (controller area network) is used and a new clock synchronization algorithm is proposed and implemented. To verify the proposed control algorithm, two disks which are attached on two motor shafts are controlled to rotate at the same speed and phase angle with the same time base using network clocks.

• 한국정보통신학회논문지
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• 제9권7호
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• pp.1616-1623
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• 2005

본 논문에서는 카오스 이동 로봇에서의 상호 협조 제어를 위한 동기화 기법을 제안하였다. 카오스 이동 로봇에서의 상호 협조 제어를 위한 동기화를 이루기 위하여 장애물을 가진 경우와 장애물을 가지지 않는 경우에 있어서 결합 동기 이론과 구동 동기 이론을 적용하였으며 두개의 로봇에서 동기화가 이루어짐을 확인하였다.

• Kyungpook Mathematical Journal
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• 제54권2호
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• pp.293-320
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• 2014

In this paper, global chaos synchronization is investigated for WINDMI (J. C. Sprott, 2003) and Coullet (P. Coullet et al, 1979) chaotic systems using adaptive backstepping control design based on recursive feedback control. Our theorems on synchronization for WINDMI and Coullet chaotic systems are established using Lyapunov stability theory. The adaptive backstepping control links the choice of Lyapunov function with the design of a controller and guarantees global stability performance of strict-feedback chaotic systems. The adaptive backstepping control maintains the parameter vector at a predetermined desired value. The adaptive backstepping control method is effective and convenient to synchronize and estimate the parameters of the chaotic systems. Mainly, this technique gives the flexibility to construct a control law and estimate the parameter values. Numerical simulations are also given to illustrate and validate the synchronization results derived in this paper.

• 한국통신학회논문지
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• 제38B권7호
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• pp.564-571
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• 2013

최근 무선 네트워크 기술이 많이 발전됨에 따라 많은 단말과 애플리케이션들은 무선 네트워크를 기반으로 연구되고 있다. 무선 네트워크는 유선 네트워크에 비해 편의성, 유동성, 확장성과 저렴한 가격으로 인하여 많이 사용되고 있지만, 안정성이 떨어지므로 실시간 제어시스템에서의 적용은 제한적이다. 무선 제어시스템에 있어서 가장 중요한 것은 클럭 동기화이다. 비록 기존 유선 네트워크와 무선 네트워크에서 많은 동기화 기법들이 제안 되었지만, 이러한 기법들은 무선 제어 시스템에 직접적으로 적용하기에는 부적절하다. 이에 본 논문에서는 무선 제어 시스템에서의 동기화 문제를 제기하고, 무선 네트워크의 특성들을 이용하여 클럭 동기화 기법을 제안하였다. 이와더불어 제안 알고리즘의 성능 분석을 위한 모의실험을 수행하였고, 기존 동기화 기법과 제안한 기법을 패킷 손실과 패킷 손실을 제외한 환경에서 비교 분석하였다.

• East Asian mathematical journal
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• 제36권5호
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• pp.547-554
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• 2020

Synchronization of unidirectional identical FitzHugh-Nagumo systems coupled in a ring structure under ionic and external electrical stimulations is investigated. In this network, each neuron is only connected and transmit signals to its next neuron via synaptic strength called gapjunctions. Adaptive control theory and Lyapunov stability theory are used to propose a unique control scheme with necessary and sufficient conditions which guarantee the synchronization of the neuronal network. Finally, the effectiveness of the proposed scheme is shown through numerical simulations.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.1632-1636
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• 2005

This paper presents synchronization of two identical Modified Chua's circuits using two strategies of error feedback coupling. In the first method the synchronization is achieved by linear unidirectional and in the second one by linear bidirectional error feedback coupling. Both proposed methods can make the states of the Modified Chua's circuits globally asymptotically synchronized. Numerical results are provided to show the effectiveness of the proposed approaches and to compare them together based on different criteria.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2005년도 추계종합학술대회
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• pp.355-359
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• 2005

In this paper, we propose that the synchronization method for mutual cooperative control in the mobile robot. In order to achieve the synchronization for mutual cooperative control in the mobile robot, we apply coupled synchronization technique and driven synchronization technique in the mobile robot with obstacle.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 하계학술대회 논문집 B
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• pp.633-635
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• 1997

In this paper, a transmitter and a receiver using two identical Chua's circuits are proposed and a wire synchronizations are investigated. As several problems have been found in both the drive-response synchronization and the coupled synchronization in the previous researches, a new drive-coupled synchronization theory is proposed that can be applicable to wire communication. Since the synchronization of the wire transmission system is impossible by coupled synchronization, theory having both the drive-response and the coupled synchronization is proposed. As a result, the chaos synchronization has delay characteristics in the wire transmission system caused by the line parameters L and C.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제11권2호
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• pp.77-83
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• 2011

In this paper, an active backstepping design is proposed to achieve control and synchronization of a new hyperchaotic system. The proposed method is a systematic design approach and exists in a recursive procedure that interlaces the choice of a Lyapunov function with the design of the active control. The proposed controller enables stabilization of chaotic motion to the origin as well as synchronization of the two identical new hyperchaotic systems. Numerical simulations illustrate the validity of the proposed control technique.