Sensor array for fetal ECG. part 2 : Sensor selectionsReport as inadecuate

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1 IBISC - Informatique, Biologie Intégrative et Systèmes Complexes 2 Service d-Obstétrique Gynécologique 3 LIS - Laboratoire des images et des signaux

Abstract : Non invasive foetal electrocardiogram ECG extraction involve measurements from electrodes located on different points of the mother-s skin. As a result, foetal ECG fECG and maternal ECG mECG components appear mixed together in the recordings, in addition with some random disturbances, such as mother electromyograms, thermal noise from the electrodes,etc. Fetal contribution however is minor by comparison with these electrical sources and classical signal processing, like filtering, does not allow us to recover the fECG. The task of obtaining the fECG from the rest of non-desired signals, that disturb the cutaneous recordings, can be coped by using blind source separation BSS tools. In the following, we propose some conditions on the number and location of the sensors so that the extraction is optimal.

Author: Vincent Vigneron - Annabelle Azancot - Christophe Herail - Manuel Schmidt - Olivier Sibony - Christian Jutten -



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