Projective filtering of time-aligned beats for foetal ECG extraction

• Autorzy: Kotas M.
• Języki publikacji: EN

Abstrakty

EN

Extraction of the foetal electrocardiogram from single-channel maternal abdominal signals without disturbing its morphology is difficult. We propose to solve the problem by application of projective filtering of time-aligned ECG beats. The method performs synchronization of the beats and then employs the rules of principal component analysis to the desired ECG reconstruction. In the first stage, the method is applied to the composite abdominal signals, containing maternal ECG, foetal ECG, and various types of noise. The operation leads to maternal ECG enhancement and to suppression of the other components. In the next stage, the enhanced maternal ECG is subtracted from the composite signal, and this way the foetal ECG is extracted. Finally, the extracted signal is also enhanced by application of projective filtering. The influence of the developed method parameters on its operation is presented.

Słowa kluczowe

EN

principal component analysis; projective filtering; foetal ECG

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2007
• Tom: Vol. 55, nr 4
• Strony: 331--339
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Kotas M.

• Institute of Electronics, Division of Biomedical Electronics, Silesian University of Technology, 16 Akademicka St., 44-100 Gliwice, Poland,

Bibliografia

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