Adaptive Cancellation of Floor Vibrations in Standing Ballistocardiogram Measurements Using a Seismic Sensor as a Noise Reference

摘要: An adaptive noise canceller was used to reduce the effect of floor vibrations on ballistocardiogram (BCG) measurements from a modified electronic bathroom scale. A seismic sensor placed next scale and as reference input canceller. BCG recordings were acquired healthy subject while another person stomped around scale, thus causing increased vibrations. The substantially eliminated artifacts in signal due these without distorting morphology measured BCG. Additionally, obtained standing inside parked bus engine running. engine, other vehicles moving road bus, also effectively by system with automatic vibration cancellation could be increase measurement robustness home monitoring applications. approach may enable recording ambulances-or transport vehicles-where noninvasive hemodynamic otherwise not feasible.