一种心电信号的时频分析方法  

A Kind of Method on Time-Frequency Analysis of Electrocardiosignal

作　　者：赵建强[1] 黄华[1] 王芸[1] 张正波[1] 

机构地区：[1]四川大学电气信息学院通信工程系,成都610065

出　　处：《生物医学工程学杂志》2005年第5期1049-1051,共3页Journal of Biomedical Engineering

摘　　要：人体心电信号是心血管疾病医学诊断的重要依据,在基础及临床医学上都有重要意义。由于人体心电信号是典型的非平稳信号,仅靠时域波形分析不能较好的反映其特征和探讨本质。本文通过人体心电信号的时频分析,得到了正常和一些病理的心电信号的典型时频图,从一个新的视角较好的反映出了人体心电信号的一些本质性特征,有望成为医学诊断的一种重要判别依据。Electrocardiosignal （ECG） is an important evidence base for the diagnoses of cardiovascular diseases as well as for the researches in basic and clinical medicine. Because it presents typical non-steady signals, the wave in time can not reflect the essential characteristic very well. In this article, by analysis in tlme-frequency domain,we have obtained some typical time-frequency diagrams of normal ECG and abnormal ECG, which reflect the comparatively essential characteristics of the original signal in some aspects and seem likely to become a basis for validating the relevat diagnosis.

关 键 词：时频分析 心电信号 仿真 时频分析方法 心电信号 医学诊断 心血管疾病 临床医学 波形分析 依据 

分 类 号：R318.04[医药卫生—生物医学工程] R540.41[医药卫生—基础医学]