长春理工大学学报(自然科学版)
長春理工大學學報(自然科學版)
장춘리공대학학보(자연과학판)
Journal of Changchun University of Science and Technology
2015年
5期
154-157,162
,共5页
脉象信号%时域特征%EMD分解%模态能量商
脈象信號%時域特徵%EMD分解%模態能量商
맥상신호%시역특정%EMD분해%모태능량상
pulse signal%time domain characteristics%EMD decomposition%modal energy quotient
提出以时域特征和模态能量商特征相结合进行脉象信号识别的方法.首先根据脉象信号的波形特征,计算脉象信号的h1,h3,h4,h3/h1,h4/h1,t1,t,k时域特征参数;然后对脉象信号进行EMD分解,计算6种脉象信号的模态能量商.通过临床200例脉象信号的采集和分析计算,获得临床上常见脉象信号的典型时域特征,确定弦脉的模态能量商R>1,滑脉、沉脉、细脉、缓脉、平脉的R值依次降低,且R<1.实验结果表明:时域特征和模态能量商特征相结合的方法可实现临床常见脉象信号的识别.
提齣以時域特徵和模態能量商特徵相結閤進行脈象信號識彆的方法.首先根據脈象信號的波形特徵,計算脈象信號的h1,h3,h4,h3/h1,h4/h1,t1,t,k時域特徵參數;然後對脈象信號進行EMD分解,計算6種脈象信號的模態能量商.通過臨床200例脈象信號的採集和分析計算,穫得臨床上常見脈象信號的典型時域特徵,確定絃脈的模態能量商R>1,滑脈、沉脈、細脈、緩脈、平脈的R值依次降低,且R<1.實驗結果錶明:時域特徵和模態能量商特徵相結閤的方法可實現臨床常見脈象信號的識彆.
제출이시역특정화모태능량상특정상결합진행맥상신호식별적방법.수선근거맥상신호적파형특정,계산맥상신호적h1,h3,h4,h3/h1,h4/h1,t1,t,k시역특정삼수;연후대맥상신호진행EMD분해,계산6충맥상신호적모태능량상.통과림상200례맥상신호적채집화분석계산,획득림상상상견맥상신호적전형시역특정,학정현맥적모태능량상R>1,활맥、침맥、세맥、완맥、평맥적R치의차강저,차R<1.실험결과표명:시역특정화모태능량상특정상결합적방법가실현림상상견맥상신호적식별.
In this paper,a method is proposed in order to achieve the recognition of clinical pulse signals,that is,the combination of time domain characteristics and modal energy quotient characteristics. First,the time domain characteris-tic parameters h1,h3,h4,h3/h1,h4/h1,t1,t,k of pulse signals are calculated according to the pulse signal wave-form characteristics. Second,based on EMD which can adaptively decompose the non—stationary signal,the pulse sig-nals are decomposed to calculate the modal energy quotient. By analyzing and calculating 200 clinical cases of pulse sig-nal, we acquired the typical time features of clinical common pulse signal, and determined wiry pulse modal energy quotient R>1, slippery pulse, sunken pulse, fine pulse, slow pulse and flat veins R values in descending order, and R<1. The results testify that the combination of time domain characteristics and modal energy quotient characteristics can effectively identify clinical common pulse signals.