摘要
以耦合映象格子模型为例 ,提出利用单向耦合驱动时空混沌的同步方案 ,并进行了数值分析 .结果表明 ,适当地选择耦合驱动强度因子和均衡系数 ,两个时空混沌系统可以达到准确同步 .通过计算最大条件Lyapunov指数 ,给出了可实现时空混沌同步的最小耦合强度以及最小耦合强度与系统参数之间的关系曲线 .数值模拟还证明 ,此方法工作鲁棒 .
Based on a coupled map lattice model, we present an approach of unilateral coupling to implement the synchronization of spatiotemporal chaos. Our numerical simulations show that the two spatiotemporal systems can accurately become synchronized by appropriately selecting the coupling strength and the equilibrium coefficient. We calculate the largest conditional Lyapunov exponent, so as to give the minimum coupling strength that can achieve the synchronization, and the functional relationship between the minimum coupling strength and the system parameters. The simulation results also indicate that this method is robust against noise.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第12期2702-2706,共5页
Acta Physica Sinica
