基于符号函数的注入反馈式蔡氏电路同步控制  

Chaotic synchronization control of Chua's circuit by injected feedback based on the symbolic function

作　　者：马美玲[1] 闵富红[1] 邵书义[1] 黄苗玉[1] 

机构地区：[1]南京师范大学电气与自动化工程学院,南京210042

出　　处：《物理学报》2014年第1期75-81,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:51075275);江苏省自然科学基金(BK20131402);教育部留学回国人员科研启动基金(批准号:教外司[2012]1707号);江苏省六大人才高峰资助的课题和江苏省普通高校研究生科研创新计划项目(编号:CXLX13_391)资助的课题~~

摘　　要：蔡氏电路的状态变量不易引出,一般的同步控制方法难以硬件电路实现.针对此类含有电感、电容储能元件的混沌电路,提出一种注入反馈式混沌同步电路设计方法,通过引出状态变量,并在状态变量微分量未知的情况下对系统实施混沌控制.利用该方法,对运动行为不同的两个蔡氏系统,实现了基于符号函数的非线性投影同步控制研究,电路实验结果验证了该方法的可行性和有效性.Due to the inherent property of the Chua＇s circuit,it is difcult to obtain the three state variables directly from the circuit,and the general control method is hard to apply to the circuit.For these chaotic circuits which have energy storage elements,a simple circuit is designed to get the state variables.In addition,an injected feedback method to realize the synchronization is proposed,which can control the circuits with unknown diferential variables of the state variables.Two chaotic systems which have diferent motions are investigated using the symbolic function.All results obtained from the circuits are verifed by the efectiveness and feasibility of the above method.

关 键 词：蔡氏电路 注入反馈式 符号函数 投影同步 

分 类 号：TM13[电气工程—电工理论与新技术]