Spatiotemporal chaos synchronization by active-occasional coupling

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.