QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:冠心病人心率变异信号非线性特性分析

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Date of Publication:2005-08-01

Page Number:118-121

Key Words:代替数据法;错误近邻;关联维(D<,corr>);心率变异;李雅普诺夫指数

Abstract:本文通过计算关联时间、关联维、L-Z复杂度和最大李氏指数等特征量对20例冠心病人的心率变异信号(HRV)进行了分析,并与代替数据的计算结果相比较;此外,还使用了IFS测试法、递归图形分析法、相关分析、错误近邻法和奇异值分解法,结果表明:绝大多数冠心病患者的HRV信号具有非线性确定性规律,它们是关联维在4-5之间的高维混沌信号.

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