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连续时滞混沌系统是无穷维系统 ,这样的系统可产生具有多个正的Lyapunov指数的超混沌现象 ,因此系统可产生复杂的时间序列 .这个特征使它特别适用于保密通讯 .基于此分析 ,首先本文对M G超混沌系统的c参数进行辨识研究 ,给出一种辨识M G系统c参数的新方法 .然后 ,尝试用欲传输的信号对系统的c参数进行调制 ,在接收端利用本文提出的参数辨识方法来解调 ,从而实现数字信号的保密通信 .最后大量仿真发现 ,当辩识的收敛时间小于数字脉冲的持续时间时 ,本文的方法可以很好的进行解调
The continuous time-delay chaotic system is an infinite dimensional system. Such a system can generate hyperchaos with multiple positive Lyapunov exponents. Therefore, the system can produce complex time series. This feature makes it particularly suitable for secure communication. Based on this analysis, First of all, this paper presents a new method to identify the c parameters of the hyperchaotic system of MG, and gives a new method to identify the c parameters of the MG system.Then, it attempts to modulate the c parameter of the system by using the signal to be transmitted, Parameter identification method to demodulate, in order to achieve the secure communication of digital signals.Finally, a large number of simulation found that when the convergence time of recognition is less than the duration of digital pulse, the method in this paper can be well demodulated