Motion Artifact Removal from Capacitive ECG Measurements by Means of Adaptive Filtering

摘要

Capacitive ECG sensing is not just a very promising alternative to conventional ECG but also allows for new applications, in which recording a conventional ECG is not imaginable due to practical aspects. This way, integration into car seats for monitoring of the heart rate of the driver or a usage in a home monitoring scenario is no longer unimaginable. Nevertheless, capacitive ECG measurements are very prone to motion artifacts, which need to be eliminated. For this purpose, this paper introduces adaptive filtering as a method for signal enhancement by using a second signal, which is correlated with the interfering signal. The approach is validated in a setting with an additional acceleration signal during car drive.