中国物理B ›› 2011, Vol. 20 ›› Issue (1): 10510-010510.doi: 10.1088/1674-1056/20/1/010510
张庆灵1, 吕翎2
Zhang Qing-Ling(张庆灵)a) and Lü Ling(吕翎)a)b)†
摘要: This paper studies the synchronization of complex dynamical networks constructed by spatiotemporal chaotic systems with unknown parameters. The state variables in the systems with uncertain parameters are used to construct the parameter recognizers, and the unknown parameters are identified. Uncertain spatiotemporal chaotic systems are taken as the nodes of complex dynamical networks, connection among the nodes of all the spatiotemporal chaotic systems is of nonlinear coupling. The structure of the coupling functions between the connected nodes and the control gain are obtained based on Lyapunov stability theory. It is seen that stable chaos synchronization exists in the whole network when the control gain is in a certain range. The Gray--Scott models which have spatiotemporal chaotic behaviour are taken as examples for simulation and the results show that the method is very effective.
中图分类号: (Synchronization; coupled oscillators)