利用系统参数和变量反馈控制时空混沌

USING FEEDBACK OF PARAMETERS AND VARIABLES OF SYSTEM TO CONTROL SPATIOTEMPORAL CHAOS

研究了用正比于系统变量和参数的脉冲反馈法控制耦合映象格子中的时空混沌问题．这种控制方法并不需要知道系统动力学的先验知识，不同的脉冲间歇长度可产生各种稳定的时空周期轨道．本文以耦合单峰格子为模型验证了该控制方法的有效性，并给出了典型的数值模拟结果．

Problem of controlling spatiotemporal chaos in Coupled Map Lattice is studied by using feedback of parameters and variables of system.The method does not need to be based on any previous knowledge of the system dynamics.Various stable spatiotemporal periodic orbits are produced at different length of intermittent pulse.The method is illustrated with an application to the coupled logistic lattice and a series of typical numerical analogy results are given.