Abstract：Objective To analyze the heart sound signals through signal processing methodology so as to provide objective foundations for physicians to diagnose the heart-sound-related heart diseases. Methods Based on Labview2014, the instantaneous frequency of heart sound was analyzed to obtain the frequency spectrum and the curve of instantaneous frequency. Results The differences between normal and abnormal heart sound was significant in the aspects of the frequency spectrum and the curve of instantaneous frequency. Conclusion This methodology had proven its accuracy in the verification test in revealing differences between normal and abnormal heart sound, which contributed to convenient and efficient diagnosis of heart-sound-related heart diseases for physicians.
韦博轩，彭松. 基于Labview2014的心音信号瞬时频率分析[J]. 中国医疗设备, 2015, 30(4): 25-27.
WEI Bo-xuan, PENG Song. Analysis of the Instantaneous Frequency of Heart Sound Signals Based on Labview2014. China Medical Devices, 2015, 30(4): 25-27.
