ECG Signal Denoising and Features Extraction Using Unbiased FIR Smoothing

Figure 3

Step-by-step events representing the strategy of the ECG signal denoising and features extraction: (a) original ECG signal, (b) smoothed ECG signal, (c) peak-value R, Q, and S, (d) P and T points, (e) P wave, (f) duration of QRS complex, (g) T wave, and (h) ST-angle.

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