一种网格多涡卷混沌Colpitts振荡器及其电路实现

摘要

Based on the spiral chaotic Colpitts oscillator model,it is studied to construct multi-scroll chaotic Copitts oscillator model via different nonlinear functions,and a grid multi-scroll chaotic Colpitts oscillator model is presented. Through replacing the nonlinear function of the spiral chaotic Colpitts oscillator model with a step function,and intro-ducing a saturation function,a new Colpitts oscillator model is constructed,which is able to generate grid multi-scroll chaotic attractors. Through numerical simulation and circuit experiment,the feasibility of the grid multi-scroll chaotic Colpitts oscillator model is verified.%基于单涡卷混沌Colpitts振荡器模型,对使用不同非线性函数构造多涡卷混沌Copitts振荡器模型进行了研究,并提出了一种网格多涡卷混沌Colpitts振荡器模型.利用阶跃函数代替单涡卷混沌Colpitts振荡器模型中的非线性函数,以及增加一个饱和函数,构造了一个能产生网格多涡卷混沌吸引子的Colpitts振荡器模型.通过数值仿真与电路实验,验证了该网格多涡卷混沌Colpitts振荡器的可行性.