跃变参数混沌同步及其应用  

Hop-parameter chaotic synchronization and its applications

作　　者：张勇[1] 陈天麒[1] 陈滨[1] 

机构地区：[1]电子科技大学电子工程学院

出　　处：《物理学报》2007年第1期56-66,共11页Acta Physica Sinica

摘　　要：建立了跃变参数混沌同步的数学模型,提出并证明了其同步的充分条件,在理论上分析了充分条件的可实现性.提出了跃变参数混沌同步和跃变周期同步的有效算法,借助Chua混沌系统仿真实现了参数跃变混沌同步保密通信.最后,分析了跃变参数混沌保密通信对抗现有混沌窃听方法的性能.仿真结果表明跃变参数混沌同步及其保密通信具有易实现和强保密性等优点.In this paper, we build a mathematic model of hop-parameter chaotic synchronization, propose and prove its sufficient condition, then analyze theoretically the condition for its realization. An efficient algorithm is proposed for about the hop- parameter chaotic synchronization and hopparameter period synchronization. Based on the Chua＇ s system, we have simulated the hop-parameter chaotic synchronization and its secure communication. Finally, the counteraction between the hop-parameter chaotic communication system and the wiretapping system is discussed. The simulation shows the hop-parameter chaotic synchronization and its secure communication have the virtue of easy realization and good security.

关 键 词：混沌同步 跃变参数 充分条件 保密通信 

分 类 号：O231[理学—运筹学与控制论]