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本文研究了胎儿第一心音与第二心音的频谱,比较了它们的特点.从而提出了分离第一心音与第二心音信号的频率滤波方法的设想.还提出了应用Hilbert交换由心音和心电测定射血前期的方案.探讨了研制胎儿心音监护仪的可能方案.
In this paper, the frequency spectrum of the first heartbeat and the second heartbeat of the fetus is studied and their characteristics are compared, thus the idea of frequency filtering method for separating the first heartbeat and the second heartbeat signal is proposed.However, Cardiac Determination of pre-ejection programs.Development of fetal heart sound monitor possible programs.