Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2003.07e
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- Pages.2244-2247
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- 2003
Noise Cancellation of Thoracic Sound Using Wavelet Transform
웨이브렛 변환을 이용한 흉부음의 잡음 제거
Abstract
In this paper, we present a method which can minimize distortion from desired signal in thoracic sound signal processing. We firstly chose the proper wavelet mother function to reduce noise components. Secondly, we chose a clean thoracic sound, then added Gaussian noise and 3 step(10, 15, 20db) uniform noise to it. Finally, the various wavelet functions are applied for noise cancellation. To evaluate the efficiency of this study, we computed SNR and RSE value. Then we found the optimal mother wavelet function for thoracic sound.
Keywords