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International Journal of Image, Graphics and Signal Processing(IJIGSP)

ISSN: 2074-9074 (Print), ISSN: 2074-9082 (Online)

Published By: MECS Press

IJIGSP Vol.9, No.2, Feb. 2017

Analysis of Abdominal ECG Signal for Fetal Heart Rate Estimation Using Adaptive Filtering Technique

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Author(s)

Ashraf Adamu Ahmad, Aminu Inuwa Kuta, Abdulmumini Zubairu Loko

Index Terms

Fetal heart rate;electrocardiogram (ECG);least mean square (LMS);power-line noise;white noise;signal-to-noise ratio (SNR)

Abstract

This paper presents a method for fetal heart rate estimation from an abdominal electrocardiogram (ECG) signal based on adaptive filter analysis using least mean square (LMS) adaptive filtering algorithm in order to determine the health status of a baby in its mother's womb. The fetal ECG signal is extracted from abdominal ECG containing other sources of interference using the maternal ECG signal obtained from mother's chest cavity as the reference signal. Interference/noise model used for this work include the power-line noise, the white noise and the unwanted propagating maternal ECG signal. Thereafter, the heart rate is estimated using an automated peak voltage measurement algorithm at 75 percent threshold voltage. It is found that irrespective of the estimated heart rate of the baby, 100 percent estimation is achieved at signal-to-noise ratio (SNR) greater than or equal to -31dB. 

Cite This Paper

Ashraf Adamu Ahmad, Aminu Inuwa Kuta, Abdulmumini Zubairu Loko,"Analysis of Abdominal ECG Signal for Fetal Heart Rate Estimation Using Adaptive Filtering Technique", International Journal of Image, Graphics and Signal Processing(IJIGSP), Vol.9, No.2, pp.19-26, 2017.DOI: 10.5815/ijigsp.2017.02.03

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