计算物理 ›› 2005, Vol. 22 ›› Issue (2): 130-136.

• 研究论文 • 上一篇    下一篇

耦合双稳映象格子模型的时空混沌控制

岳丽娟1,2, 沈柯1   

  1. 1. 长春理工大学物理系, 吉林 长春 130022;
    2. 东北师范大学物理系, 吉林 长春 130024
  • 收稿日期:2003-12-17 修回日期:2004-04-02 出版日期:2005-03-25 发布日期:2005-03-25
  • 作者简介:岳丽娟(1963-),女,长春,副教授,博士,从事非线性系统中混沌的同步与控制的研究,长春东北师范大学物理系130024.

Spatiotemporal Chaos Control in Coupled Bistable Map Lattice Systems

YUE Li-juan1,2, SHEN Ke1   

  1. 1. Department of Physics, Changchun University of Science and Technology, Changchun 130022, China;
    2. Department of Physics, Northeast Normal University, Changchun 130024, China
  • Received:2003-12-17 Revised:2004-04-02 Online:2005-03-25 Published:2005-03-25

摘要: 变量反馈技术实现了耦合双稳映象格子模型的时空混沌控制.数值实验结果表明,利用不同的反馈技术和不同的反馈强度,可以将双稳映象系统的混沌及耦合双稳映象格子模型的时空混沌控制到不动点或周期轨道.变量反馈控制法除了局域双稳映象系统的定态点外,不需要先获取耦合双稳映象格子时空系统的动力学信息,它对抑制耦合双稳映象系统中的湍流具有一定的指导作用.

关键词: 耦合双稳映象, 时空混沌, 变量反馈控制

Abstract: The suppression of spatiotemporal chaos is realized by using variable feedback techniques in coupled bistable map lattice systems.Numerical simulations indicate that the chaos in a bistable map system and the spatiotemporal chaos in a coupled bistable map lattice system could be suppressed to the fixed point or the periodic orbits by using different feedback techniques and strengths.In addition to the fixed point of a local bistable map system the feedback control method does not require a priori dynamics information of the coupled bistable map lattice system.The method appears useful in controlling turbulence of coupled bistable map lattice systems.

Key words: coupled bistable map lattice, spatiotemporal chaos, variable feedback control

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