量子电子学报2012，Vol.29Issue(4)：500-506,7.DOI:10.3969/j.issn.1007-5461.2012.04.020
两类混沌激光保密通信方案的性能分析
Performance analysis of two types of chaotic optical secure communication schemes
摘要
Abstract
High dimensional, broadband chaotic optical signal can be generated by a semiconductor laser with external disturbance, which is an ideal carrier for high-speed secure communications. The performances of chaotic optical secure communication systems are numerically studied by encrypting the message by chaos modulation (CMO) or chaos masking (CMS). The variation of the signal-to-noise ratio (SNR) and Q-factor are demonstrated when sinusoidal and digital messages are transmitted separately by CMO or CMS. The correlation coefficient as a function of modulation depth (MD) is discussed. The results show that the system performance varies for different MD or modulation frequency/rate and the performance of CMO system is better than that of CMS.关键词
光通信/混沌同步/混沌调制/混沌隐藏/半导体激光器Key words
optical communication/ chaotic synchronization/ chaos modulation/ chaos masking/ semiconductor laser分类
信息技术与安全科学引用本文复制引用
刘培洋,赵清春,殷洪玺..两类混沌激光保密通信方案的性能分析[J].量子电子学报,2012,29(4):500-506,7.基金项目
国家自然科学基金(61071123,60772001)、区域光纤通信网与新型光通信系统国家重点实验室(北京大学)开放基金和大连理工大学引进人才基金资助项目 （61071123,60772001）
