mirror of https://github.com/espruino/BangleApps
12 lines
622 B
Markdown
12 lines
622 B
Markdown
# HRM Motion Artifacts removal
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Measurements from the build in PPG-Sensor (Photoplethysmograph) is sensitive to motion and can be corrupted with Motion Artifacts (MA). This module allows to remove these.
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## Settings
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* **MA removal**
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Select the algorithm to Remove Motion artifacts:
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- None: No Motion Artifact removal.
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- fft elim: (default, *experimental*) Remove Motion Artifacts by cutting out the frequencies from the HRM frequency spectrum that are noisy in acceleration spectrum. Under motion this can report a heart rate that is closer to the real one but will fail if motion frequency and heart rate overlap.
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