Title :
Time-frequency analysis of the second heart sound signals
Author :
Yanjun, WU ; Xu Jingping ; Yan, Zhao ; Jing, Wang ; Bo, Wang ; Jingzhi, Cheng
Author_Institution :
Dept. of Biomed. Eng., Xi´´an Jiaotong Univ., China
Abstract :
The difference of the properties of the Short Fourier Transform, Continuous Wavelet Transform and AR Spectra Array in time-frequency analysing for heart sound signals are studied and compared here. Some problems for using these methods are discussed. It is concluded that the Continuous Wavelet Transform has the highest property in representing the time-frequency distribution of the heart sound signals among these three methods
Keywords :
Fourier transforms; acoustic signal processing; bioacoustics; cardiology; medical signal processing; time-frequency analysis; wavelet transforms; autoregressive spectral array; cardiac diagnostics; continuous wavelet transform; heart sound signals; second heart sound signals analysis; short Fourier transform; time-frequency distribution; Biomedical engineering; Continuous wavelet transforms; Fourier transforms; Gaussian processes; Heart; Signal analysis; Signal processing; Signal resolution; Time frequency analysis; Wavelet analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.575035
