Fig. 8.

Comparison of the enhancement results of the different algorithms for channel 1 of recording “r07” of the Abdominal and Direct Fetal Electrocardiogram Database. In the first row, the simultaneously recorded scalp ECG is presented. The noisy signal is shown in Fig. 5. In the output of the proposed method (aTSAF), the characteristic ECG waves are clearly visible and correspond well to those of the scalp ECG