参数扰动下的混沌同步控制及其保密通信方案

发布时间：2018-06-19 18:54

本文选题：混沌同步 + 参数扰动　；参考：《控制理论与应用》2014年05期

【摘要】：研究了变参数混沌系统的同步控制问题及其保密通信方案设计.主要创新点可归结如下:第一,提出了利用混沌系统状态变量来构造变参数系统参数扰动项的思想,研究了混沌系统参数在另一组混沌序列持续扰动下的同步控制问题.混沌系统对参数具有敏感依赖性,当混沌系统的参数被另一组混沌序列持续扰动时,系统将产生更加难以预测的混沌行为.第二,对加密后的信息信号再进行一次非线性叠来生成加密端与解密端之间的通信信号,而不是直接以加密信号作为通信信号,使得实际传输的通信信号具有更复杂的形式从而难以被破译.此外,该方案只需向接收系统发送一路信号,且同步控制器简单,实用性较强.数值模拟和理论分析表明该方案具有良好的通信、保密特性和较广的适用范围.
[Abstract]:The synchronization control problem of variable parameter chaotic systems and the design of the secure communication scheme are studied. The main innovation points are as follows: first, the idea of constructing parameter disturbance term of variable parameter system by using state variables of chaotic system is proposed, and the synchronization control problem of chaotic system parameters under the continuous disturbance of another chaotic sequence is studied. The chaotic system is sensitive to the parameters. When the parameters of the chaotic system are continuously disturbed by another group of chaotic sequences, the system will produce more unpredictable chaotic behavior. Second, the encrypted information signal is repeated once more to generate the communication signal between the encrypted end and the decryption end, instead of using the encrypted signal directly. For communication signals, the communication signals actually transmitted are more complex and difficult to be deciphered. In addition, the scheme only needs to send a signal to the receiving system, and the synchronization controller is simple and practical. Numerical simulation and theoretical analysis show that the scheme has good communication, secrecy and wide application.
【作者单位】：湖南大学机械与运载工程学院;
【基金】：国家自然科学基金资助项目(11172093,11032004) 湖南省研究生科研创新基金资助项目(CX2012B159)
【分类号】：TN918;O415.5

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