Applicability of adaptive noise cancellation to fetal heart rate detection using photoplethysmography

被引：17

作者：

Zahedi, Edmond ^{[1
]}

Beng, Gan Kok ^{[2
]}

机构：

[1] Sharif Univ Technol, Dept Elect Engn, Tehran 113659363, Iran

[2] Univ Kebangsaan Malaysia, Dept Elect Elect & Syst Engn, Fac Engn, Bangi 43600, Malaysia

来源：

COMPUTERS IN BIOLOGY AND MEDICINE | 2008年 / 38卷 / 01期

关键词：

optical model; fetal heart rate; monitoring; adaptive signal processing; photoplethysmogram;

D O I：

10.1016/j.compbiomed.2007.06.007

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In this paper, an approach based on adaptive noise cancellation (ANC) is evaluated for extraction of the fetal heart rate using photoplethysmographic signals from the maternal abdomen. A simple optical model is proposed in which the maternal and fetal blood pulsations result in emulated signals where the lower SNR limit (fetal to maternal) is -25dB. It is shown that a recursive least-squares algorithm is capable of extracting the peaks of the fetal PPG from these signals, for typical values of maternal and fetal tissues. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：31 / 41

页数：11

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