Stability and Phase Response Analysis of Optimum Reduced-Order IIR Filter Designs for ECG R-Peak Detection

Figure 7

Assessments of the step response of the proposed reduced-order IIR filter designs for the ECG filtering. (a) Step response of the Pan–Tompkins low-pass filter. (b) Step response of the 60-order FIR filter. (c) Step response of the reduced-order IIR filter.

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(b)

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