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电子学报  2013 

微笑、平静、说谎和诚实的人脑蔡氏电路模型

DOI: 10.3969/j.issn.0372-2112.2013.10.035, PP. 2100-2103

Keywords: 混沌,蔡氏电路,人脑,数据窗口,功率指数

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Abstract:

基于人脑和蔡氏电路都能表现复杂的混沌特征,本文利用蔡氏电路为人脑建立电路模型.文中利用Multisim10?仿真蔡氏电路,提取纯阻R1两端电压,作为原始待分析数据.类积分法、李亚普若夫指数、微窗口法和P分数等四种方法顺次应用于选取数据分析窗口.基于数据窗口,分别调整电感L和非线性电阻参数R5,得到纯阻R1的平均功率及其最小值PR1min(1.56×10-4W).同时以PR1min为底数,利用Log函数计算R1的平均功率对应的指数值.对比最近几年人脑近红外耳穴信号研究成果,R1平均功率指数与以微笑时人脑额区消耗功率为底数的人脑平静、诚实和说谎的功率消耗指数分布相同.结合人脑实际消耗功率,我们选取纯阻R1最小平均功率对应的蔡氏电路并联,实现平静、微笑、诚实和说谎的人脑额区蔡氏电路模型.此电路模型为人脑非线性模型研究提供了一个崭新的研究思路.

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