Figure 8From: Invariant heart beat span versus variant heart beat intervals and its application to fetal ECG extraction Estimation errors for an aECG (mECG HRV r = 0.4). (a) synthetic aECG, (b) estimation error by PRR, (c) estimation error by RR, and (d) estimation error by LP. Zoom of the grey segments are showed on the right.Back to article page