论文部分内容阅读
提出了基于同时受到一个驱动混沌信号非相干光注入的两个响应半导体激光器之间的混沌同步以实现双向保密通信的系统方案,并对系统的混沌同步特性以及两个响应激光器之间的内部参数失配对同步特性的影响进行了研究.研究结果表明:通过选取合适的系统参量,可以实现响应激光器与驱动激光器之间同步系数较小而两响应激光器之间达到高质量混沌同步;两响应激光器之间的内部参数失配对它们之间的同步性能虽然有一定的影响,但影响比较小.另外,本文还对两个2Gbit/s的信息在该系统中双向传输时的隐藏和解调效果以及系统的安全性进行了分析.
A system scheme based on chaos synchronization between two response semiconductor lasers driven by an incoherent light injected with chaotic signals is proposed to realize bidirectional secure communication. The chaotic synchronization characteristics of the system and the internal parameters of two response lasers The results show that the synchronization coefficient between the response laser and the driving laser can be reduced and the high quality chaos synchronization can be achieved between the two responding lasers by selecting suitable system parameters. The internal parameter mismatch has a certain impact on the synchronization performance between them, but the impact is relatively small.In addition, this paper also hides and demodulates the effect of two 2Gbit / s information in the system bidirectional transmission and the system The security was analyzed.