Linear Phase Sharp Transition BPF to Detect Noninvasive Maternal and Fetal Heart Rate

Table 3

Variations of passband loss and stopband attenuation for BPF with various filter orders (N).

Filter order (N)	201	501	1001	1501	2001	5001
Passband loss (dB)	1.5	±0.5	±0.13	±0.1	±0.04	±0.03
Stopband attenuation (dB)	23.5	35.8	40.6	43	46	46