A multi-channel electrode tissue impedance detection approach for motion artifact suppression in ambulatory electrocardiography

In ambulatory electrocardiography recording, the motion artifact can contaminate the signal and disrupt the normal functioning of the automatic analysis algorithm. The objective of this study is to evaluate an approach for measuring the electrode tissue impedance (ETI) variation for motion artifacts suppression application. The proposed approach injects an additional common mode signal though the reference electrode. Motion artifact suppression is performed using adaptive filter with the reference signal generated by ETI.