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Design of Filter to Reject Motion Artifacts of PPG Signal Using Multiwave Optical Source

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2014, 19(2), pp.101-107
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

ParkHeeJung 1 남재현 1 Lee Ju Won 1

1안동과학대학교

Accredited

ABSTRACT

This study is proposed the novel PPG sensor device and the signal processing method to replacethe acceleration sensor that is used to reject motion artifacts contained inphotoplethysmography(PPG). The proposed method is to reject motion artifacts by an adaptivefilter based on the estimated motion artifact by using a blue LED light. To evaluate theperformance of the proposed method experimentally, We did design a novel sensor consisted ofblue/red LEDs and photo-sensor and implemented, and then rejected the motion artifacts by usingan adaptive filter and the implemented sensor. In the results of the experiments, it is shown thatthe proposed sensor device and signal processing can reconstruct the PPG signal despite the occurrence of motion artifacts, and also that the SNR was 4.5 times of moving average filter. According to the experimental results, the proposed method can be applied to design a low-cost device.

Citation status

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