Method and device for acquiring fetal heart sound signal envelope
A technology of signal envelope and fetal heart sound, applied in measuring pulse rate/heart rate, medical science, auscultation instrument, etc., can solve problems such as unfavorable fetal heart rate calculation and reduced anti-interference ability
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[0059] The embodiments of the present invention will be further described below in conjunction with the drawings.
[0060] Such as figure 1 As shown, in the embodiment of the method and device for obtaining a fetal heart sound signal envelope of the present invention, the method for obtaining the fetal heart sound envelope includes the following steps:
[0061] Step S11: Collect and preprocess the fetal heart sound signal: In this step, the fetal heart sound signal is collected and preprocessed, that is, the sensor is used to pick up the fetal heart sound signal of the fetus in the abdomen of the pregnant woman, and then the obtained fetal heart sound signal The sound signal is processed by hardware filtering, amplification, etc., and then input to the acquisition device for data collection; then, the collected fetal heart sound signal is preprocessed, such as band-pass filtering.
[0062] Step S12: Obtain a template signal from the fetal heart sound signal, and use the template sign...
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