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中文摘要：
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．
英文摘要：
Based on the chaotic synchronization between two response semiconductor lasers （RLs） subjected to incoherent optical injec- tion of common-chaotic-signal from a driven laser （DL）, a bidirectional chaos communication scheme is proposed, and the chaotic synchronization characteristics and the effects of intrinsic mismatched parameter on the synchronization performances are numerically investigated. The results show that high-quality chaos synchronization between the two RLs can be achieved while the cross-correlation coefficients between the two RLs and the DL are very low under proper operation condition; the intrinsic parameter mismatching be- tween two RLs will destroy the synchronized quality to a certain extent, but the consequence is not severe. Additionally, the bidirectional transmission performances for two messages with 2Gbit/s and the security of the scheme are also analyzed.
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