Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi
-
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi · Sep 2001
[An improved auto-correlation method for Doppler fetal heart rate measurement].
It is very important to monitor the fetal heart rate in the clinical management of pregnancies antenatally. The most commonly employed non-invasive method uses Doppler ultrasound. ⋯ In this paper, we describe an improved method for the determination of fetal heart rate from Doppler ultrasound signals. Using an exponentially weighted auto-correlation technique with an automatic adaptation algorithm, we have developed the method which can provide accurate fetal heart rate records, especially in the cases of reduced signal and loss of signal.