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激光混沌耦合同步及其在保密通信中的应用
引用本文:颜森林,迟泽英,陈文建,孙小菡,张明德.激光混沌耦合同步及其在保密通信中的应用[J].通信学报,2004,25(1):78-86.
作者姓名:颜森林  迟泽英  陈文建  孙小菡  张明德
作者单位:1. 南京理工大学电子工程与光电技术学院,江苏,南京,210094;南京晓庄学院,物理系,江苏,南京,210017
2. 南京理工大学电子工程与光电技术学院,江苏,南京,210094
3. 东南大学,电子工程系,江苏,南京,210096
摘    要:建立了外部光注入半导体激光器激光混沌耦合同步系统,导出了耦合条件下的激光扰动方程和激光同步扰动方程。成功模拟了外部光注入波长1.3lμm分布反馈半导体激光器的激光混沌耦合同步,其同步误差小且抗噪声干扰能力强。该同步系统在混沌模拟和数字保密通信中的数值模拟表明,无论是在时域还是在频域,信息都难以被分离,该系统确有较高的保密性能和反破译能力。

关 键 词:保密通信  半导体激光器  激光混沌耦合同步  扰动方程
文章编号:1000-436X(2004)01-0078-09
修稿时间:2002年1月9日

Chaotic synchronization with coupling lasers and its application for secure communications
YAN Sen-lin,CHI Ze-ying,CHEN Wen-jian,SUN Xiao-han,ZHANG Ming-de.Chaotic synchronization with coupling lasers and its application for secure communications[J].Journal on Communications,2004,25(1):78-86.
Authors:YAN Sen-lin    CHI Ze-ying  CHEN Wen-jian  SUN Xiao-han  ZHANG Ming-de
Affiliation:YAN Sen-lin1,3,CHI Ze-ying1,CHEN Wen-jian1,SUN Xiao-han2,ZHANG Ming-de2
Abstract:Perturbation equations and chaotic synchronous perturbation equations with coupling semiconductor lasers injected with an external light are presented. A chaotic synchronous system with distributed feedback semiconductor lasers injected with an external light at 1.31mm bas been successfully stimulated with almost little synchronous error and robust anti-perturbation. Chaotic secure communications with the system are studied by numerically simulations and it is found that the information is hidden in the chaotic signal very well both in time-domain and frequency-domain. The system shows good abilities of robust secure and anti-uncover.
Keywords:chaos  synchronization  secure communications  lasers  
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