局域速率反馈方法同步时空混沌  

Synchronizing Spatiotemporal Chaos with Local Velocity Feedback

作　　者：高继华[1] 杨钦鹏[1] 龚晓钟[1] 汤皎宁[1] 彭建华[1] 

机构地区：[1]深圳大学材料学院

出　　处：《科学技术与工程》2007年第1期8-11,40,共5页Science Technology and Engineering

基　　金：国家自然科学基金(10405018)项目资助

摘　　要：在一维的复Ginzburg-Landau方程(CGLE)系统中,提出了时空混沌同步的一种广义反馈方法,称为变量速率反馈方法。研究了利用单个速率反馈信号同步时空混沌的可能性。研究结果表明,选取较大的偏流强度和反馈强度可以使响应系统与驱动系统之间获得较好的混沌同步,并通过数值计算确定出同步参数空间。Variable velocity feedback method is proposed to achieve complete synchronization of spatiotemporal chaos in one-dimensional complex Ginzburg-Landau equation system. The instability of synchronization is investigated by applying a single velocity feedback signal with the presence of a gradient force. By using numerical simulations, better complete synchronization between driving system and response system is found with larger gradient force and feedback intensity. The synchronizing regime of parameters is presented finally.

关 键 词：时空混沌 混沌同步 复GINZBURG-LANDAU方程 

分 类 号：O175.29[理学—数学]