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

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/jhe/volume-2018/5485728/figures/5485728.fig.006a.svgz" name="5485728.fig.006a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Direct Fetal Scalp ECG</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/jhe/volume-2018/5485728/figures/5485728.fig.006b.svgz" name="5485728.fig.006b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Raw abdominal ECG</td></tr></table>

<div>(a) Direct fetal scalp ECG signal (channel one) as standard reference FECG. (b) Raw maternal aECG of adfecgdb database (channel 4—record r08).</div>

Journal of Healthcare Engineering

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Figure 6

Figure 6: Linear Phase Sharp Transition BPF to Detect Noninvasive Maternal and Fetal Heart Rate 