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本文设计一基于混沌同步的数字保密通信系统。发送系统由线性部分和非线性部分组成，非线性部分由线性增益矩阵与代表不同数字信息的一维非线性函数的乘积组成，一维非线性函数的值作为发送信号发出。接收系统的线性部分与非线性部分的线性增益矩阵与发送系统一致，非线性部分由线性增益矩阵与接收信号的乘积组成。选取适当的线性部分能使收发系统同步。解码系统通过比较以接收系统状态为因变量的与不同数字信息相对应的一维非线性函数的值与接收信号的值而可以解码出相应的数字信息。本文举一简单例子说明此通信方法。
This paper designs a digital secure communication system based on chaos synchronization. The transmission system consists of a linear part and a non-linear part. The non-linear part consists of a product of a linear gain matrix and a one-dimensional nonlinear function representing different digital information. The value of a one-dimensional nonlinear function is sent as a transmission signal. The linear gain matrix of the linear part and the non-linear part of the receiving system is consistent with the sending system, and the non-linear part consists of the product of the linear gain matrix and the received signal. Select the appropriate linear part of the transceiver system can synchronize. The decoding system can decode the corresponding digital information by comparing the value of the one-dimensional nonlinear function corresponding to the different digital information with the received signal to receive the system status as dependent variable. This article gives a simple example of this communication method.