System and method for measuring heart rate of fetus
A technology of fetal heart rate and fetal heart rate, which is applied in the field of fetal heart rate measurement system, can solve the problems of unfavorable fetal heart rate, complex algorithm, and decreased accuracy of fetal heart rate calculation, etc., to achieve long-term monitoring, eliminate interference noise, and simple and easy-to-implement algorithm Effect
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[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0038] In terms of calculating the fetal heart rate, because the abdominal mixed signal collected from the maternal abdominal surface includes not only the fetal ECG signal, but also the maternal ECG signal and other interference noises, and the fetal heart rate detected from the maternal body surface The electrical signal is very weak and is easily interfered by maternal ECG, EMG / breathing and other signals. Therefore, the main components of the abdominal mixed signal are maternal ECG and interference noise. Therefore, how to extract the fetal ECG signal from the mother's abdominal mixed signal and then calculate the fetal heart rate is the key.
[0039] The invention provides a system for measuring fetal heart rate, comprising: a maternal electrocardiographic signal acquisition unit for collecting maternal electrocardiographic signa...
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