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提出一种对胎儿心动信号做实时处理的方法． 利用快速傅氏变换在频域上直接从多普勒信号中求得胎儿心率． 采用该方案的袖珍式胎儿监护仪具有较强的抗干扰能力， 硬件简单， 适应性强． 临床应用结果表明本方法具有检测成功率高和运算快速的特点
A method of real-time processing of fetal heartbeat signal is proposed. Fetal heart rate was obtained directly from Doppler signals in the frequency domain using fast Fourier transform. The program of pocket-sized fetal monitor has a strong anti-interference ability, hardware is simple, adaptable. The clinical application results show that the method has the characteristics of high detection success rate and fast operation