参数未知的时延混沌系统滑模变结构同步控制
Synchronization of Time-Delay Chaotic Systems with Uncertainty Based on Sliding Mode Controller
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摘要: 将滑模控制策略用于时延混沌系统的同步,采用了对系统参数摄动鲁棒性好的变结构控制,使系统对噪声和参数失配情况具有更强的鲁棒性。同时将自适应技术、系统辨识技术应用于系统中的未知参数逐步逼近,实现具有扰动以及参数未知的时延混沌系统的同步。仿真结果证实了该方法的有效性。
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关键词:
- 混沌同步; 自适应参数估计; 滑模
Abstract: This paper presents a sliding mode control method for synchronizing a class of unknown parameters time-delayed chaotic system. The variable structure control scheme provides robust synchronization even in the presence of unknown disturbance. And adaptive method is used to estimate unknown parameter. Finally, numerical results are used to show the robustness and effectiveness of the proposed control strategy. -
Pecora L M, Carroll T L. Synchronization in chaotic systems, Phys[J].Rev. Lett.1990, 64(8):821-824[2]Pecora L M, Carroll T L. Driving systems with chaotic signals, Phys[J].Rev. A.1991, 44(4):2374-2383[3]Niemeyer H, Marvels I M Y. An observer looks at synchronization[J].IEEE Trans. on CAS-I.1997, 44(10):882-890[4]Chen J Y, Wong K W, Chen Z X, et al.. Phase synchronization in discrete chaotic systems[J].Phys.Rev.E.2000,61(3):2559-2562[5]John R T, Gregory D V. Chaotic communication using generalized synchronization[J].Chaos, Solitons and Fractals.2001, 12(1):145-152[6]Yang T, Lin B Y, Chun M Y. Application of neural networks to unmasking chaotic secure communication[J].Physica D.1998, 124(1~3):248-[7]Zhang Hao, Ma Xi-kui, Liu Wen-zeng. Synchronization of chaotic systems with parametric uncertainty using active sliding mode control. Chaos, Solitons and Fractals, (2004)21: 1249-1257.[8]Liao T L, Nuang N S. Control and synchronization of discrete-time chaotic systems via variable structure control technique[J].Physics Letter A.1997, 234:262-268[9]周尚波,寥晓峰,余厥邦. 具有简单时延的神经元模型的混沌行为[J].电子与信息学报.2002,24(10):1341-1345浏览
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