Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2000.09a
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- Pages.959-962
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- 2000
Analysis of Heart Sound Using the Wavelet Transform
Wavelet Transform을 이용한 Heart Sound Analysis
Abstract
A heart sound algorithm, which separates the heart sound signal into four parts; the first heart sound, the systolic period, the second heart sound, and the diastolic period has been developed. The algorithm uses discrete intensity envelopes of approximations of the wavelet transform analysis method to the phonocard-iogram(PCG)signal. Heart sound a highly nonstation-ary signal, so in the analysis of heart sound, it is important to study the frequency and time information. Further more, Wavelet Transform provides more features and characteristics of the PCG signal that will help physician to obtain qualitative and quantitative measurements of the heart sound.
Keywords