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

Table 2

Quantitative performance of the group delay.

Parameter	BPF	IIR	ROIIR
Mean GD	−1.37E − 04	2.03E − 05	−0.015
Max GD	0.9	1.9867	−4.66E − 04
Min GD	−2.3979	−0.4538	−0.2142
Peak to Peak Swing	3.2979	2.4405	0.213734