时空混沌系统中有偏反相同步研究  

Biased anti phase synchronization in spatiotemporal chaos

作　　者：刘剑波[1] 叶春飞[1] 张树京[1] 

机构地区：[1]上海铁道大学电信系,上海200331

出　　处：《铁道学报》2000年第2期39-41,共3页Journal of the China Railway Society

基　　金：上海市科技启明星基金! (96QF1 4 0 1 3);铁道部专项科研基金!(J98Z2 2 8)资助

摘　　要：分析了基于耦合映象格子时空混沌系统的同步问题 ,首次发现了耦合映象格子中存在的有偏反相同步现象 ,并利用单向耦合单峰格子进行了讨论。研究结果表明 ,在系统参数满足一定条件下 ,耦合映象格子在实现同相同步的同时 ,还可实现有偏反相同步。这一结论可应用于混沌键控系统 。The synchronization of spatiotemporal chaos in coupled map lattices is analyzed in this paper, and the biased anti phase synchronization in coupled map lattices is obtained for the first time. As example, the one way coupled logistic lattice is researched. The results show that under certain conditions, coupled map lattices can realize in phase synchronization and biased anti phase synchronization. So these results are potentially useful in chaos shift keying technique, and the security of communication system can be improved.

关 键 词：时空混沌 耦合映象格子 有偏反相同法 通信系统 

分 类 号：TN914[电子电信—通信与信息系统]