Motion artifact cancellation for wearable photoplethysmographic sensor
Name
699492105-MIT.pdf
Description
Full printable version
Size
5.37 MB
Format
Adobe PDF
Checksum (MD5)
f7fb9205976ba52e94f2bbea0a8dbb31
Author(s)
Kuboyama, Yuta
Advisor(s)
Rosalind W. Picard and Richard Fletcher.
Date Issued
2010
Publisher
Massachusetts Institute of Technology
Abstract
Photoplethysmography (PPG) is a non-invasive and unobtrusive technique to measure heart rate from the surface of the skin, by exposing a section of the skin to an LED light and measuring the changes in reflected light due to the blood pulsing through under the skin. However, PPG signals are highly susceptible to motion artifacts, and in order for this technique to be useful for heart rate measurements around-the-clock, a motion artifact cancellation mechanism must be implemented to recover the blood volume pulse (BVP) from the corrupted signal. Various digital signal processing (DSP) approaches for motion artifact cancellation have been attempted in the past, but a reliable around-the-clock PPG sensor is yet to be out on the market. This thesis outlines a novel, analog implementation of the motion artifact cancellation system, to evaluate the impact of sensor front-end improvements on the performance of motion artifact cancellation.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 65-66).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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reproduction or distribution in any format is prohibited without written
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