대한전기학회논문지:시스템및제어부문D (The Transactions of the Korean Institute of Electrical Engineers D)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

적응 SFLC(Scaled Fourier Linear Combiner)를 이용한 활동 중의 PPG 신호의 잡음 감소

Noise Reduction of PPG Signal During Free Movements Using Adaptive SFLC(Scaled Fourier Linear Combiner)

  • 김성민 (건국대학교 의학공학부) ;
  • 차은종 (충북대학교 의과대학 의공학교실) ;
  • 김덕원 (연세의대 의학공학교실) ;
  • 유재하 (한양대학교 전자공학과) ;
  • 김동연 (한양대학교 전자공학과) ;
  • 김수찬 (한경대학교 생물환경.정보통신전문대학)
  • 발행 : 2006.03.01
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초록

Blood flow is one of vital signals related to human physiological information. Photoplethysmograph (PPG) has been used to measure indirectly heart rate, blood oxygen saturation ($SpO_2$), and so on. Because PPG signal is weak and sensitive to motion artifacts, it is very important to continuously obtain stable PPG signal during free movement. In this study, we applied the scaled Fourier linear combiner (SFLC) using both the adaptive filter and FLC to remove effectively the motion artifacts as well as background noise in the real time without additional signal correlated with motion from a accelerometer. The proposed method would be useful to reduce the movement and background noise which are not synchronized with heart rate.

키워드

참고문헌

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