摘要
首先介绍了改进型的Chua电路及其特性,讨论了基于此电路采用单向耦合同步实现混沌掩盖通信的一种方案,分析了单向耦合同步系统的失真-频率特性,从而建立了一种基于两级调制的混沌掩盖通信方案,用以改善系统的安全性能,最后通过实验证实了所提方案的可行性。
Chua＇s circuit and its characteristics are firstly presented in this article. A chaos concealment communication project, which is realized by adopting one-way coupling synchronization, is discussed, it analyses the distorted-frequency characteristic of one-way coupling synchronization system. Thereby, sets up one chaos concealment communication project on the basis of two-level modulation, which is used to improve systematic security performance. It verifies the plans feasibility through the experiment finally.
出处
《陕西科技大学学报（自然科学版）》
2006年第3期104-109,共6页
Journal of Shaanxi University of Science & Technology
基金
陕西科技大学自然科学基金(ZX05-41)资助
关键词
保密通信
混沌同步
失真
两级调制
secure communication
chaos synchronization
distortion
two-level modulation
