Key result
An AS-LMS adaptive filter using an internally generated synthetic noise reference signal effectively reduced motion artifacts in PPG signals without requiring additional hardware.
Population
Photoplethysmographic (PPG) signals corrupted by motion artifacts
Design
Other
Authors
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May simplify wearable PPG monitoring; leaves open need for clinical validation trials.
An AS-LMS adaptive filter using an internally generated noise reference signal effectively reduces motion artifacts in PPG signals without requiring additional hardware.
Ram et al. (2011) studied Motion artifacts in photoplethysmographic (PPG) signals. AS-LMS adaptive filter with internally generated synthetic noise reference signal was evaluated on Motion artifact reduction evaluated via convergence and correlation analysis. An AS-LMS adaptive filter using an internally generated synthetic noise reference signal effectively reduced motion artifacts in PPG signals without requiring additional hardware.