【作者】 王炳和； 张建伟； 相敬林；

【Author】 Wang Binghe Zhang Jianwei Xiang Jinglin (College of Marine Engineering,Northwestern Polytechnical University)

【机构】 西北工业大学航海工程学院301室；

【摘要】 本文利用小波变换首次在时-频域分析了脉搏信号的特征;利用小波变换的奇异性检测原理成功地检测出了由主动脉瓣启、闭而引起的脉搏信号突变点,依此准确地获得了心脏收缩期和舒张期,并将其作为评价心脏功能的重要指标之一。经62例脉搏信号的实验分析,表明该方法具有较好的应用前景。更多还原

【Abstract】 The time-frequency characteristics of pulse signals are analyzed using wavelet transform(WT).Pulse-signal jumping points caused by opening and closing of aortic valve are successfully detected by the singularity detection principle of WT.Systole and diastole of the heart are accurately obtained,which is used as one of important indexes of evaluating heart function.Potential application of this method is shown by the analysis of 62 pulse signals.更多还原