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BangleApps/apps/hrmmar
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Erik Andresen a152ff546c hrmmar: bthrm compatibility 
- Disable when bthrm is active
- Enable fft elim as default
 		2023-03-19 08:26:51 +01:00
..
ChangeLog hrmmar: bthrm compatibility 2023-03-19 08:26:51 +01:00
README.md hrmmar: bthrm compatibility 2023-03-19 08:26:51 +01:00
app.png hrmmar: Add fft elimination algorithm to remove MA 2022-11-27 19:05:40 +01:00
boot.js hrmmar: bthrm compatibility 2023-03-19 08:26:51 +01:00
fftelim.js hrmmar: bthrm compatibility 2023-03-19 08:26:51 +01:00
metadata.json hrmmar: bthrm compatibility 2023-03-19 08:26:51 +01:00
settings.js hrmmar: bthrm compatibility 2023-03-19 08:26:51 +01:00

README.md

HRM Motion Artifacts removal

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.

Settings

  • MA removal

Select the algorithm to Remove Motion artifacts:

  • None: No Motion Artifact removal.
  • 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.