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  • Sheng Wu Yi Xue Gong Cheng Xue Za Zhi · Sep 2001

    [An improved auto-correlation method for Doppler fetal heart rate measurement].

    • C Zhang, S Zhang, and S Gao.
    • Shandong Province Chest Hospital, Ji'nan 250013.
    • Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2001 Sep 1;18(3):434-7, 478.

    AbstractIt 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. Because of the complexity of Doppler fetal signals, the signal processing is difficult. 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.

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