PPG 신호를 이용한 운동 중 맥박수 측정
Heart-rate Measurement During Exercise Using PPG Signal
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초록
A method of measuring heart rate using photoplethysmograph(PPG) signal during exercise is proposed. PPG's are composed of strong base tones and their harmonics, and the strong base tones are trackable by the adaptive notch filter (ANF) which adjusts its coefficients to minimize the output power. The proposed heart rate measurement algorithm continuously notches the frequency component with the maximum power in the measured PPG, so that the fundamental frequency corresponding to heart rate is traced. We also presents methods of detecting degeneration and impulsive noise blocks to minimize the coefficient fluctuation. Experiments were conducted using real PPG signals captured during exercise. Results showed that the proposed algorithm is capable of consistently tracking the heart rate embedded in the noisy PPG's.
Abstract
A method of measuring heart rate using photoplethysmograph(PPG) signal during exercise is proposed. PPG's are composed of strong base tones and their harmonics, and the strong base tones are trackable by the adaptive notch filter (ANF) which adjusts its coefficients to minimize the output power. The proposed heart rate measurement algorithm continuously notches the frequency component with the maximum power in the measured PPG, so that the fundamental frequency corresponding to heart rate is traced. We also presents methods of detecting degeneration and impulsive noise blocks to minimize the coefficient fluctuation. Experiments were conducted using real PPG signals captured during exercise. Results showed that the proposed algorithm is capable of consistently tracking the heart rate embedded in the noisy PPG's.
참고문헌 (6)
- A.B.Hertzman, "The blood supply of various skin areas as estimated by the photoelectric plethysmography", Amer,J.physiol., 124(2), pp.329~340 (1938)
- J.Allen, "Photoplethysmography and its application in clinical physiological measurement", IOP,Physiological, ~ (2007)
- S.H. Kim, "Adaptive Noise Cancellation Using Accelerometers for the PPG signal from Forehead", EMBS 2007. 29th Annual International Conference of the IEEE, pp.2567~2567 (2007)
- K.W Chan, "Adaptive Reduction of Motion Artifact from Photoplethysmographic Recordings Using a Variable Step-Size LMS Filter", Sensors,2002.Proceedings of IEEE, 2, pp.1343~1346 (2002)
- S. C. Pei, "Adaptive IIR notch filter based on least mean p-Power error criterion", IEEE Trans.Circuits & Sys., 40(8), pp.525~529 (1993)
- D. Hush, "An adaptive IIR structure for sinusoidal enhancement frequency estimation and detection", IEEE Trans.Acoust.,Speech,Signal Processing, 34(4), pp.1380~1390 (1986)