从脉搏信号中准确提取呼吸和心率信息的新方法  

Extracting respiration frequency and heart rate from a pulse

作　　者：王炳和[1] 郭红霞[2] 

机构地区：[1]武警工程学院通信工程系,陕西西安710086 [2]武警工程学院基础课部,陕西西安710086

出　　处：《陕西师范大学学报（自然科学版）》2005年第1期53-55,共3页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(69701002);陕西省自然科学基金资助项目(2001X28)

摘　　要：采用功率谱估计的方法,从脉搏信号中准确提出了人体呼吸频率和心率值.结果表明,正常人的静息心率有很大差异,一般为0 625～1 615Hz(均值为1 025Hz),且呼吸频率的变化范围宽(男性为8 5～21 2次/min,女性为12 4～26 5次/min).对人体四种脉象信号功率谱能量及其分布进行了计算和比较,为揭示呼吸对脉象影响的机理和估计心率的稳定性提供了依据.In order to reveal information on human healthy conditions contained in a pulse signal, human respiration frequency and heart rate from a pulse signal are extracted accurately and conveniently with the method of power spectrum estimation. The results show that the heart rate values of normal people are very different among different people and so are the respiration frequency values. Energy distributions of power spectrum for the four kinds of pulse signals are computed and compared. This work provides important basis for studying the mechanism of respiration' impact on pulse-condition and estimating the stability of the heart rate.

关 键 词：静息心率 脉象 脉搏信号 呼吸频率 人体 正常人 男性 准确 信息 变化范围 

分 类 号：N42[自然科学总论] R318.04[医药卫生—生物医学工程]