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

Figure 8

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

(a)

(b)

(c)