该源程序是基于虚拟仪器的心音图形显示系统，主要实现体表心音的采集和实时显示,心音信号的频谱分析以及临床听诊库的管理-The source code is based on heart sound virtual instrument graphical display system, mainly to achieve surface collection and real-time display of heart sound, heart sound signal spectrum anal

用LABVIEW实现信号的仿真，并对其进行频谱分析。(The simulation of the signal is realized with LABVIEW, and the spectrum analysis is carried out.)