短时心率变异性频域指标分析方法的研究  

Study on Analysis Method of Short-term Heart Rate Variability Frequency Domain Index

作　　者：崔艳斌 张平[2] Cui Yanbin;Zhang Ping(Department of Biomedical Engineering,Changzhi Medical College,Changzhi Shanxi 046000,China;Research Institue of Field Surgery,Daping Hospital,Third Military Medical University,Chongqing 400042,China)

机构地区：[1]长治医学院生物医学工程系,山西长治046000 [2]第三军医大学大坪医院野战外科研究所,重庆400042

出　　处：《山西电子技术》2019年第3期87-89,共3页Shanxi Electronic Technology

摘　　要：该文旨在讨论可用于短时心率变异性频域指标的算法。首先对采集的心电信号分别截取出不同时长的数据,然后使用Welch和Lomb-scargle两种算法来分别计算每段时长的心率变异性频域指标值。并以最长时长数据的数值作为标准,同时利用配对T检验的方法来比较不同时长的短时长数据与最长时长数据是否具有差异,最后得到可以用于短时心率变异性频域指标计算的方法。This paper aims to discuss the algorithms that can be used for short-term heart rate variability frequency domain indicators.Firstly,the collected ECG signals are respectively taken out for different durations of data,and then Welch and Lomb-scargle algorithms are used to calculate the heart rate variability frequency domain index values for each period of time.The value of the longest time data is used as the standard and the paired T test method is used to compare whether the short duration data and the longest duration data of different durations are different.Finally a method for calculating the frequency domain index of short-term heart rate variability is obtained.

关 键 词：心率变异性 频域分析 小波变换 

分 类 号：R318.11[医药卫生—生物医学工程]