摘要
用变量反馈方法研究了具有对称双势阱的扩展Duffing-Van der Pol(DVP)系统的混沌同步问题,以及反馈增益强度摄动对同步时间的影响.结果表明,仅需一路反馈信号就能有效实现驱动系统与响应系统的混沌同步,反馈增益强度具有较宽的取值区间,且反馈增益强度的摄动幅度小于0.82时对同步时间没有显著影响.变量反馈控制方法实现DVP系统混沌同步的有效性和稳定性通过数值仿真得到证实.
In this paper,the synchronization problem of the extended Duffing-Van der Pol （DVP）system with symmetrical double potential well using variable feedback method were researched.Also,the effect of disturbance of the feedback gain on synchronization time are studied.The results show synchronizing DVP systems can be achieved employing only one channel feedback signal.The feedback gain intensity can take its value within broader interval and the synchronization time has not distinct change when the disturbance amplitude of the feedback gain intensity is less than 0.82.The validity and stability about synchronizing DVP systems with variable feedback method are showed by numerical simulation.
出处
《河南科学》
2010年第10期1225-1229,共5页
Henan Science
基金
国家自然科学基金项目(10702065)
