A Fetal Electrocardiogram Signal Extraction Algorithm Based on Fast One-Unit Independent Component Analysis with Reference

Figure 6

Reference signal and extracted FECG signals by both methods from the real-world ECG signals in Figure 5. Ref: reference signal for FECG signal. A-B: extracted artificial FECG signals by the proposed method and Mi’s method, respectively. C: red and blue curves are exactly the same with the subfigures A and B, respectively.