基于双光电反馈振荡器的单向混沌同步通信  

Unidirectional Chaotic Synchronization Communication Based on Oscillator with Double Optoelectronic Delay Feedback

作　　者：操良平[1] 董晓云[2] 王泽钰[1] 汪崇渝[1] 

机构地区：[1]重庆师范大学教育科学学院,重庆401331 [2]重庆师范大学初等教育学院,重庆400700

出　　处：《重庆师范大学学报（自然科学版）》2014年第4期126-130,共5页Journal of Chongqing Normal University:Natural Science

基　　金：国家自然科学基金(No.11204248);重庆市教委科学技术研究资助项目(No.KJ130621)

摘　　要：利用半导体激光器和马赫-曾德尔调制器构建了一个基于双光电反馈振荡器的单向混沌同步通信系统,数值研究了该系统的同步特性及通信性能。结果表明,系统输出的混沌波具有更宽的频带和更为复杂的频谱,有利于提高通信容量和系统的安全性;当系统无参数失配时,能获得高质量混沌同步,并能实现实时通信;参数失配对系统同步性能和通信质量有影响,但在一定的参数失配范围内,系统仍能实现较好的混沌通信。Au unidirectional chaotic synchronization communication system based on oscillator with double optoelectronic feedback was constructed. Its synchronization characteristics and communication performances are numerically investigated. The results show that the chaotic outputs of such a system become more complex and have larger bandwidth, which is helpful to improve the commu- nication capacity, the system security as well. When the parameters are mismatched, good-quality chaos synchronization and simul- taneous unidirectional transmission can be achieved ; when mismatched, the synchronization quality and communication performance are affected to a certain extent, but the system can still realize chaos communication within a range of mismatched parameters

关 键 词：混沌同步 混沌通信 双光电反馈 半导体激光器 马赫-曾德尔调制器 

分 类 号：TN248.4[电子电信—物理电子学] TN918.91