基于混沌的光通信微弱光信号检测模型研究

Weak optical signal detection model of optical communication based on chaos

利用混沌系统对微弱周期信号敏感这一特性,提出了一种基于混沌的微弱光信号检测方法.该方法主要通过发端对信号进行混沌调制和在接收端用混沌系统进行解调,来实现对微弱光信号的检测.通过MATLAB软件仿真检测表明,本检测方法可以提高光通信接收设备的灵敏度,也可以提高光信号在光通信中的传输距离.

By use of the characteristic of chaotic system sensitive to weak signal, a method of weak optical signal detection based on chaos was be put forward. This method can realize the weak optical signal detection by the transmitter with chaotic modulation and the receiver with chaotic system demodulation. The MATLAB simulation results show that optical receiver sensitivity and optical signal transmissions are improved by this method.