光电混沌同步在高速光保密通信中的应用

Optical secure communication at high bit rate with synchronized optoelectronic chaos

对光电双延时反馈混沌系统在高速光保密通信中的应用做了仿真实验研究。建立了光电双延时反馈混沌同步的理论模型,利用Optisystem光通信系统仿真软件搭建了相应的仿真实验系统。分析了混沌同步通信系统的同步性能,当主从光电混沌系统参数相同时,同步误差为仅为0.0096,相关系数达到0.97,通信速率为5Gb/s时的系统误码率为5.51e-006。

The application of double-delayed optoelectronic chaos in high bit rate optical secure communication is simulated, and develops the model of chaos synchronization. The experimental system for simulation is built with Optisystem software. The performance of synchroniation is analysed. The synchronization error is 0.0096 and correlation coefficient is 0.97 when the parameters of the two chaos systems are same. The BER of the system is 5.51 e-006 when transmitting rate at 5Gbit/s.