Adjacent Channel Weight Dependable RLS Adaptive Filter with VMD based Artifact Removal Mechanism in Fetal ECG Separation.

This paper proposes an adjacent channel weight dependable recursive least square adaptive filter (ACWD-RLS) with variational mode decomposition (VMD) based artifact removal mechanism in separating the fetal ECG (FECG) components from the pregnant mother abdominal ECG (AECG). This approach requires the two abdominal, and a single thorax ECG to extract the FECG component present in the AECG. The algorithm uses three independent VMD decomposition algorithms in which one decomposes the thorax ECG while the other two decompose the abdominal ECGs of adjacent channels.