NDLI: Foetal ECG extraction using non-linear adaptive noise canceller with multiple primary channels

Content Provider	IET Digital Library
Author	Ma, Yaping Xiao, Yegui Wei, Guo Sun, Jinwei
Abstract	A non-linear multi-sensory adaptive noise canceller (ANC, MsANC) with both multi-primary and multi-reference channels is proposed for foetal electrocardiogram (FECG) extraction. The primary channels are connected by a linear combiner (LC) whose output serves as a primary signal for the whole MsANC. A finite impulse response (FIR) filter or a non-linear filter [a Volterra filter, or an FIR filter plus a functional link artificial neural network (FLANN), or an FIR filter plus a generalised FLANN] is placed in each reference channel to approximate the linear and non-linear mappings between the chest maternal ECG (ANC reference signal) and the abdominal ECG (ANC primary signal). The LC connecting the primary channels is updated by a constrained recursive least square algorithm, while the linear and non-linear filters placed in reference channels are updated in a least mean square sense. Two real datasets derived from the Physionet non-invasive FECG database as well as the DaISy database are used to show the effectiveness of the proposed MsANC. Experimental results have revealed that the proposed MsANC results in considerable performance improvement as the number of primary channels is increased in comparison with existing ANCs with a single primary channel.
Starting Page	219
Ending Page	227
Page Count	9
ISSN	17519675
Volume Number	12
e-ISSN	17519683
Issue Number	Issue 2, Apr (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-spr/12/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-spr.2016.0605
Journal	IET Signal Processing
Publisher Date	2017-09-21
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Abdominal ECG ANC Reference Signal Bioelectric Signal Biology And Medical Computing Digital Signal Processing Electrocardiography Electrodiagnostics And Other Electrical Measurement Technique Filtering Method in Signal Processing FIR Filter FLANN Foetal ECG Extraction Foetal Electrocardiogram Extraction Functional Link Artificial Neural Network Interpolation And Function Approximation Least Mean Square Sense Least Squares Approximation Medical Signal Processing Multiprimary And Multireference Channel Non-linear Filter Nonlinear Adaptive Noise Canceller Nonlinear Filter Numerical Analysis Numerical Approximation And Analysis Physionet Non-invasive FECG Database Recursive Least Square Algorithm Reference Channel Volterra Filter
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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