基于混沌参数调制的数字通信方式

提出一种基于混沌参数调制的数字通信方式。即将一个由非线性映射所产生的混沌序列作为载波，将待发送的有用信号（数字信号）作为调制信号，对非线性映射的某一参数在其混沌区域内进行调制。在接收端，利用混沌序列的发生规则从接收信号中提取混沌载波，并经过简单的信号处理运算恢复出原来的有用信号。分析和计算机模拟表明，本文所提出的这种混沌通信系统具有一定的保密性且实现方便、性能可靠

The Digital Communication Method Based on Chaotic Parameter Modulation

In this paper,the digital communication method based on chaotic parameter modulation is proposed.The chaotic series generated by a nonlinear map is used as the carrier and a message signal is used as the modulating signal.A parameter of the nonlinear map is modulated by the message signal in its chaotic regime.At the receiver,the chaotic carrier is retrieved from the received signal by use of the rule in which the original chaotic series is generated.Then,the message signal is recovered through some simple signal processing operations.The results of the analysis and computer simulation show that the chaotic digital communication system presented in this paper possesses the private property,high reliability and can be implemented easily.