【摘要】 应用细化FFT法获得40位正常人与肺疾病患者的肺泡呼吸音、罗音、哮喘音的功率谱,统计了谱峰频率的分布,指出正常人的肺泡呼吸音和异常呼吸音(罗音、哮喘音)在谱峰分布上存在的显著区别。更多还原

【Abstract】 <ABSTRACT>The power spectrums of vesiculer breathing sounds. crackles andwheeze from 40 cases (including normal controls and patientients withlung diseases ) were analysed by BSFA, The distribution of spectrum peakfrequency was estimated, and results showed that the vesiculer breathingsounds, rales and wheeze were significatly different in distribution ofspectrum peak frequencies.更多还原