混沌预测在OGY方法中的应用

提出一种基于混沌预测的OGY方法.根据混沌系统的短期可预测性,利用相空间重构得到系统状态变量的预测值,从而产生控制量,使得混沌系统的状态可以很快的进入其不稳定不动点的附近(而通常的OGY方法则是利用混沌系统的自遍历特性来实现这一过程),然后利用OGY方法控制混沌.仿真结果表明,本文的方法可以有效加快OGY方法对混沌的控制.

Application of Chaotic Prediction in OGY Method

This paper proposes an OGY method based chaotic prediction. According to short-time predictability of chaos system, the method uses phase space reconstruction to get the predictive value of system state variables, then to produce the control quantity such that chaos system states move into their neighborhood of unstable fixed point quickly (however, the general OGY method uses chaotic ergodicity to realize this process), finally to use OGY method to stabilize the chaos. Simulation results show that this method can effectively speed the chaos control process of OGY method.