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首页> 外文期刊>Chaos, Solitons and Fractals: Applications in Science and Engineering: An Interdisciplinary Journal of Nonlinear Science >An adaptive synchronization strategy based on active control for demodulating message hidden in chaotic signals
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An adaptive synchronization strategy based on active control for demodulating message hidden in chaotic signals

机译：基于主动控制的自适应同步策略用于解调隐藏在混沌信号中的消息

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摘要

In the field of secure communication, it is very important to demodulate the message hidden in chaotic signals. In this paper, an adaptive synchronization strategy based on active control is proposed, which is used to design an active controller and an appropriate adaptive demodulator at the receiver to recover the transmitted message hidden in chaotic signals of a drive system. Based on Lyapunov stability theory, it is shown that the transmitted message can be theoretically recovered by using the proposed strategy. Numerical simulations based on the Chua's circuit are also presented to verify the effectiveness of the proposed strategy. In addition, it is shown via simulations that, by increasing the gain of the active controller the message error caused by the external noise and the discontinuous property of the message can be reduced. (C) 2006 Elsevier Ltd. All rights reserved.
机译：在安全通信领域，解调隐藏在混沌信号中的消息非常重要。本文提出了一种基于主动控制的自适应同步策略，该策略用于在接收端设计一个主动控制器和一个合适的自适应解调器，以恢复隐藏在驱动系统混沌信号中的传输信息。基于李雅普诺夫稳定性理论，表明所提出的策略可以从理论上恢复传输的消息。还提出了基于蔡氏电路的数值模拟，以验证所提出策略的有效性。另外，通过仿真显示，通过增加有源控制器的增益，可以减少由外部噪声和消息的不连续性引起的消息错误。 （C）2006 Elsevier Ltd.保留所有权利。

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