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Fetal ECG extraction from single-channel maternal ECG using singular value decomposition

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3 Author(s)
Kanjilal, P.P. ; Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India ; Palit, S. ; Saha, G.

The extraction of fetal electrocardiogram (ECG) from the composite maternal ECG signal obtained from the abdominal lead is discussed. The proposed method employs singular value decomposition (SVD) and analysis based on the singular value ratio (SVR) spectrum. The maternal ECG (M-ECG) and the fetal ECG (F-ECG) components are identified in terms of the SV-decomposed modes of the appropriately configured data matrices, and elimination of the M-ECG and determination of F-ECG are achieved through selective separation of the SV-decomposed components. The unique feature of the method is that only one composite maternal ECG signal is required to determine the P-ECG component. The method is numerically robust and computationally efficient.

Published in:

Biomedical Engineering, IEEE Transactions on  (Volume:44 ,  Issue: 1 )

Date of Publication:

Jan. 1997

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