| Sliding mode control for synchronization of chaotic systems with structure or parameters mismatching |
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| 作者姓名： | 厉小润 赵辽英 赵光宙 |
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| 作者单位： | School of Electrical Engineering，Zhejiang University，Hangzhou 310027，China，College of Computer Science，Hangzhou Dianzi University，Hangzhou 310018，China，School of Electrical Engineering，Zhejiang University，Hangzhou 310027，China |
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| 摘 要： | INTRODUCTION Synchronization of chaotic systems and its ap-plication to secure communication has recently re-ceived much attention. Several chaos synchronization schemes have been successfully established (Liao and Huang, 1999; Jiang, 2002; Zhao et al., 2004). How-ever, to our best knowledge, most of the chaos syn-chronization strategies have been studied in similar oscillators. In fact, from the perspective of hardware implementation, the resistance and capacitance of the resistors and…
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| 关 键 词： | 滑行模式控制 同步无序系统 状态观测 安全信息 自动控制 |
| 收稿时间： | 9 July 2004 |
| 修稿时间： | 18 October 2004 |
Sliding mode control for synchronization of chaotic systems with structure or parameters mismatching |
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| Li Xiao-run,Zhao Liao-ying,Zhao Guang-zhou.Sliding mode control for synchronization of chaotic systems with structure or parameters mismatching[J].Journal of Zhejiang University Science,2005,6(6):571-576. |
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| Authors: | Li Xiao-run Zhao Liao-ying Zhao Guang-zhou |
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| Institution: | (1) School of Electrical Engineering, Zhejiang University, 310027 Hangzhou, China;(2) College of Computer Science, Hangzhou Dianzi University, 310018 Hangzhou, China |
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| Abstract: | This paper deals with the synchronization of chaotic systems with structure or parameters difference. Nonlinear differential geometry theory was applied to transform the chaotic discrepancy system into canonical form. A feedback control for synchronizing two chaotic systems is proposed based on sliding mode control design. To make this controller physically realizable,an extended state observer is used to estimate the error between the transmitter and receiver. Two illustrative examples were carried out: (1) The Chua oscillator was used to show that synchronization was achieved and the message signal was recovered in spite of parametric variations; (2) Two second-order driven oscillators were presented to show that the synchronization can be achieved and that the message can be recovered in spite of the strictly different model. |
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| Keywords: | Chaos synchronization Sliding mode control Extended state observer Secure communication |
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