蔡氏混沌电路频谱分布与元件参数的选择  

CHUA CHAOTIC CIRCUIT SPECTRUM DISTRIBUTION AND THE COMPONENT PARAMETERS SELECTION

作　　者：韩敬伟[1,2] 王忠林[1] 

机构地区：[1]滨州学院物理与电子科学系,滨州256603 [2]南开大学计算机与控制工程学院,天津300071

出　　处：《动力学与控制学报》2015年第3期199-204,共6页Journal of Dynamics and Control

基　　金：山东省自然科学基金资助项目(ZR2013FM034)~~

摘　　要：以蔡氏电路为研究对象,依据电路方程从理论上给出了在保持混沌特性不变时的三种改变电路元件参数的途径,并进行了Multisim仿真实验.比较不同情况下混沌系统各电路变量的频谱分布曲线,发现在一定参数空间内仿真实验的结果和理论分析一致.这将为设计不同频率需求的混沌电路提供很好的设计思路,也可以在一定范围内选择不同电路元件参数,来改善所需混沌系统的频率特性,设计出更符合需求的混沌电路.Aiming at the Chua circuit, this paper proposed three methods to change the component parameters within a reasonable range, which can remain the chaotic dynamics unchanged, based on the circuit equations theoretically, and carried out circuit simulation experiments with Multisim. Comparing the spectrum distribution of each circuit variables derived from the different conditions, we can find that the simulation experimental results agree with the theoretical analysis. This result can provide a design proposal for chaotic circuits that have special frequency requirements, and can improve frequency characteristics of chaotic system by selecting different component parameter within a reasonable range.

关 键 词：蔡氏电路 混沌 频谱分布 元件参数 

分 类 号：O415.5[理学—理论物理] TM132[理学—物理]