新超混沌系统的自适应控制及其在保密通信中的应用

Adaptive Control of A New Hyperchaotic System and Its Application

为了探究新超混沌系统的自适应控制及其在保密通信中的应用.首先基于Lyapunov稳定性定理,构造自适应控制器和未知参数的辨识法则,仅对系统的部分状态变量进行控制,就能使得系统的所有状态变量快速稳定于原点.然后基于数值仿真方法,利用系统未知参数辨识法则,能够准确辨识参数所在项的值.最后利用近似熵最大的混沌信号遮掩保密通信的有用信号,提高保密通信的信息安全性.

In order to study the adaptive control of the new four-wing hyperchaotic system and its application in the secure communication.Firstly,based on the Lyapunov stability theorem,the adaptive controllers and the identification rule of unknown parameters are constructed.Controlling part of variables of the system can stabilize all state variables of the system to the origin quickly.Then,based on the numerical simulation method,the value of the term with inherent parameters can be accurately identified by using the identification rule of unknown parameters.Finally,chaotic signal having the maximum approximate entropy is used to mask the useful signals of secure communication,which improves the security of information in secure communication.