摘要
基于无反馈控制方法研究超混沌电路系统的混沌控制。通过稳定性分析和数值计算,表明系统存在两个不稳定的鞍点,分岔图和特定区域的相图和时序图进一步证明了系统存在超混沌行为。采用两种无反馈方法对系统的超混沌行为进行控制,结果表明,当控制频率和控制幅值选取在合适范围时,两种方法均能使系统由超混沌态控制到二周期和四周期态,但是两种方法的控制幅值和控制频率不同,得到的可控区域也不同。此研究证明了超混沌电路系统的可控性。
The chaos control of hyperchaotic circuit system is studied based on the control method without feedback.Through stability analysis and numerical calculation,it is shown that there are two unstable saddle points in the system,bifurcation diagram,phase diagram and sequence diagram in a specific region further prove the existence of hyperchaos in the system.Two kinds of feedback free methods are used to control the hyperchaos behavior of the system.The results show that when the control frequency and control amplitude are in a suitable range,both methods can make the system control from hyperchaotic state to two and four periodic states.However,the control amplitude and frequency of the two methods are different and the controllable region is different.This study proves the controllability of hyperchaotic circuit system.
作者
秦显荣
李贤丽
QIN Xian-rong;LI Xian-li(Northeast Petroleum University,Daqing 163318,China)
出处
《电子设计工程》
2019年第6期14-18,共5页
Electronic Design Engineering
基金
黑龙江省教育厅科学技术研究基金资助项目(12541064)
东北石油大学引导性科学技术基金资助项目(2016YDL07)
关键词
动力学分析
参数周期微扰
周期激励
混沌控制
五阶超混沌电路系统
chaos control
fifth-order hyperchaotic circuit system
parametric periodic perturbation
periodic excitation
