摘要
设计了一种以主动-被动同步机制为基础的混沌同步保密通信方案,方案提出了获取混沌变量中对参数敏感的信息和改善相关特性的方法,得到满足安全性要求的新变量,并用于对被加密信号进行调制。用Lorenz系统进行计算机仿真通信实验和特性分析的结果表明,本方案同步特性优良,信号恢复精度高,安全性比原方案有明显提高。
A chaotic secure communication scheme based on active-passive decomposition synchronizing is presented,aiming to have both nice synchronized behavior and high security. The methods are proposed to generate the modulation signal with high sensitivity to the parameters and satisfied auto correlation and cross correlation. The effectiveness of the scheme has been proved by the computer simulation using Lorenz equations. The results demonstrate that the scheme is accurate in signal recovery and much more safer than the original scheme.
出处
《通信学报》
EI
CSCD
北大核心
2003年第2期44-50,共7页
Journal on Communications
基金
北京市自然科学基金资助项目(4002004)
北京市教育委员会科技发展计划项目(00KJ048)
关键词
混沌同步
保密通信
敏感性
安全性
chaos synchronization
secure communication
sensitivity
security
