典型混沌系统的噪声诱导与增强同步(英文)  

Noise-induced and Noise-enhanced Synchronization of Typical Chaotic Systems

作　　者：邢丽芬[1] 尚钢[1] 刘杰[2] 

机构地区：[1]武汉科技学院非线性科学研究中心,湖北武汉430073 [2]武汉科技学院理学院,湖北武汉430073

出　　处：《武汉科技学院学报》2010年第1期18-23,共6页Journal of Wuhan Institute of Science and Technology

基　　金：Supported by the project of WUSE under grant number 20073201;the Startup Found for NSFC in WUSE;the NSF of Hubei Province under grant number 2007ABA348~~

摘　　要：研究了典型混沌系统在噪声影响下的完全同步问题,包括噪声诱导同步和噪声增强同步两种情形,并以新近提出的Liu混沌系统为例进行了讨论。进一步,本文还在一般的线性耦合框架下,针对混沌系统完全同步问题,详细讨论了噪声强度和耦合强度之间的关系。研究发现:噪声强度和耦合强度两因素对于实现混沌同步均起着积极的作用。数值仿真进一步证明了这一观点。Complete synchronization phenomena between two chaotic systems under the influence of common distributed noise is investigated in this paper,including the case of noise-induced synchronization and the case of noise-enhanced synchronization.Explicit example of the newly proposed Liu chaotic system is presented for illustrations.Moreover,the relationship between the setting noise intensity and the given coupled strength against complete synchronization under traditional linear coupled scheme is also discussed in detail.Research shows that both the noise intensity and coupling strength play positive roles on chaos synchronization.The view is furtherly illustrated by numerical simulation experiments.

关 键 词：噪声诱导同步 噪声增强同步 完全同步 LIU混沌系统 

分 类 号：O415[理学—理论物理]