时空混沌系统的主动-间隙耦合同步

SPATIOTEMPORAL CHAOS SYNCHRONIZATION BY ACTIVE\|OCCASIONAL COUPLING

提出了离散系统中的主动间隙耦合同步方法．该方法由同步相和自治相组成．在同步相，同步方案使得混沌系统趋于同步，而在自治相，两系统间的误差将迅速放大，导致失同步．但只要同步相足够大，最终可实现系统的准确同步．还从理论上讨论了同步条件，并利用该方法实现了耦合映象格子时空混沌系统中的混沌同步，给出了同步条件以及同步相与耦合强度的关系．

This paper proposes the occasional coupling synchronization scheme of the active\|passive decomposition (active\|occasional coupling).This scheme consists of synchronization and autonomous phases.In the former,the synchronization scheme is used to synchronize the drive and the response systems;in the latter,small errors will lead to the two systems separated from each other and desynchronization.But if the synchronization phases are large enough,the full synchronization will be obtained.The synchronization condition is discussed theoretically.The spatiotemporal chaos in coupled map lattice system is achieved and the synchronization condition is given.Moreover,the relation between the synchronization phases and the coupling strength is investigated numerically.  PACC: 0545