Sprott-B和Sprott-C系统之间的耦合混沌同步  

Chaos synchronization between the Sprott-B and Sprott-C with linear coupling

作　　者：刘扬正[1] 费树岷[2] 

机构地区：[1]南京工程学院基础部,南京210013 [2]东南大学自动控制系,南京210096

出　　处：《物理学报》2006年第3期1035-1039,共5页Acta Physica Sinica

基　　金：国家自然科学研究基金(批准号:69934010);教育部高校博士点基金(批准号:20030286013);江苏省高校自然科学研究基金(批准号:05KJD120083)资助的课题.~~

摘　　要：Sprott-B和Sprott-C是拓扑等价的异结构混沌系统.利用系统变量线性耦合方法实现二系统之间的混沌同步;根据Lyapunov稳定性理论,确定了二系统达到同步时耦合系数的阈值.设计了实现二系统耦合同步的实验电路,实验结果证明了理论分析的正确性.基于Sprott-B和Sprott-C异结构系统混沌同步,提出了一种新的具有更好保密性能的混沌保密通讯方法.The Sprott-B and Sprott-C arc topologically equivalent but they have distinct structures. Chaos synchronization is realized between the two systems via linear coupling of systemic variable. Based on Lyapunov stability theory, the threshold value of coupling coefficients for synchronization of two systems is derived. The practical circuit is designed to realize chaos synchronization between the two systems and the experimental result verifies the conclusion. A new method for secure communication, which can increase the security of a communication system is proposed based on chaos synchronization between the above systems.

关 键 词：线性耦合 混沌同步 异结构系统 拓扑等价 

分 类 号：O415.5[理学—理论物理] TN722.55[理学—物理]