10秒血压数据，左侧是时间，右侧血压数据（mmhg）,频率125hz-10 seconds of blood pressure data, the left is the time, the right side of the blood pressure data (mmhg), the frequency of 125hz

三种时频分析方法在心音信号分析中的应用研究。-Application of the method of heart sound signal analysis in three time-frequency analysis.