利用混沌信号驱动实现各子系统间的同步  

UTILIZATION OF DRIVING SUBSYSTEMS TO CONSTRUCT SYNCHRONIZATION WITH CHAOTIC SIGNALS

作　　者：刘玉怀[1] 马军[1] 路轶群[1] 

机构地区：[1]中国科学院安微光学精密机械研究所

出　　处：《物理学报》1999年第1期10-15,共6页Acta Physica Sinica

基　　金：中国科学院基础研究重点基金

摘　　要：通过对非同参数Ｌｏｒｅｎｚ系统驱动模型的讨论，发现对于非同参数情况，驱动系统与响应系统间严格的混沌同步关系是不存在的，同步只具有相对的意义．同时，探讨了在混沌信号驱动下稳定系统的动力学行为，说明其输出同样是混沌的．指出利用混沌信号驱动两个非同参数的子系统，可以实现两子系统之间的混沌同步输出．给出同步条件，得出的结论在实际应用中可能具有指导意义．Abstract The model of driving Lorenz systems is examined in the case that there are some parameter differences between the drive system and the response system. It is found that the strict synchronization does not exist although the parameter difference is small. We also explore the dynamic behaviors of a stable laser system driven by the chaotic signal, and we show that there is no synchronization between the drive and the response. However, this leads to the concepts of driving two subsystems with the chaotic signal, and leads to the synchronization among the subsystems. We apply these ideas to the laser subsystems,and the synchronization of the two laser subsystems, which are of different parameters and driven by the x component of the Lorenz system, is presented.

关 键 词：子系统 同步 混沌信号 驱动系统 

分 类 号：O414.2[理学—理论物理]