Abdominal-Lead Fetal Electrocardiographic R-Wave Enhancement for Heart Rate Determination
Abdominal-Lead Fetal Electrocardiographic R-Wave Enhancement for Heart Rate Determination
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DOI：
10.1109/tbme.1980.326631
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发表时间：
1980-05
影响因子：
4.6
通讯作者：
S. Azevedo;R. L. Longini
中科院分区：
文献类型：
--
作者：
S. Azevedo;R. L. Longini
胎儿心率（FHR）从外部腹导联心电图波形的可靠性取决于监测设备的R波检测能力。假设ECG的母体部分被其他地方描述的技术取消[1]-[4]，我们剩下的胎儿心电图（FECG）可能会被高噪声电平干扰。本文介绍了几种数字信号处理技术，通过这些技术改进了胎儿R波的检测。这些技术-窄带通滤波，局部峰值差分，自回归滤波和匹配滤波-理论上的发展。每种技术的性能测量和分析两个样本胎儿ECG输入。
The reliability of fetal heart rate (FHR) from external abdominal-lead electrocardiographic waveforms depends upon the R-wave detection capability of the monitoring device. Assuming that the maternal component of the ECG is canceiled by techniques described elsewhere [1]-[4], we are left with a fetal electrocardiogm (FECG) which may be conrupted by high noise levels. This paper describes several digital signal processing techniques by which the detection of fetal R-waves is improved. These techniques-narrow band-pass filtering, local peak differencing, autoregressive filtering, and matched filtering-are theoretically developed. The performance of each technique is measured and analyzed for two sample fetal ECG inputs.