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Multi-Switching Combination Anti-synchronization of Unknown Hyperchaotic Systems

机译：未知超混沌系统的多开关组合反同步

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摘要

The security of the information signal in digital communication systems is an active research problem. This paper proposes a new robust adaptive anti-synchronization control (RAASC) technique and studies the multi-switching combination anti-synchronization (MSCAS) of different unknown hyperchaotic (UH) systems. This controller reduces the overshoots in the transient phase and establishes the anti-synchronization convergence quickly. The proposedMSCASscheme anti-synchronizes two master UH systems with a slave UH system using the multi-switching mechanism that increases the complexity and enhances the security of the information signal in digital communications. The Lyapunov direct method assures the robust stability of the closed-loop dynamical system. This work provides adaptive laws that estimate the true values of unknown parameters. A numerical example of three different hyperchaotic Pang, Lu and Lorenz-Stenflo systems is simulated. The simulation results verify the theoretical findings. The proposed MSCAS approach is used for the secret communication of digital messages using the chaotic masking technique. The receiver retrieves the information signal with high security and good precession qualitatively, under the effect of different types of disturbances. This paper also discusses the implications of controller constituents of the proposed RAASC algorithm that establishes fast convergence. The article suggests some future research problems related to this work.
机译：数字通信系统中信息信号的安全性是一个积极的研究问题。本文提出了一种新的鲁棒自适应反同步控制（RAASC）技术，并研究了不同未知超混沌（UH）系统的多开关组合反同步（MSCAS）。该控制器减少了瞬态阶段的过冲，并迅速建立了反同步收敛。所提出的MSCAS方案使用多开关机制使两个主UH系统与一个从UH系统反同步，从而增加了复杂性并增强了数字通信中信息信号的安全性。 Lyapunov直接方法可确保闭环动力学系统的鲁棒稳定性。这项工作提供了估计未知参数真实值的自适应定律。模拟了三个不同的超混沌Pang，Lu和Lorenz-Stenflo系统的数值示例。仿真结果验证了理论结论。提出的MSCAS方法用于使用混沌屏蔽技术进行数字消息的秘密通信。接收机在不同类型干扰的影响下，从质量上保证了高安全性和良好进动的信息信号。本文还讨论了提出的建立快速收敛的RAASC算法的控制器组成部分的含义。本文提出了与此工作有关的一些未来研究问题。

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