IEEE Signal Processing Letters · 2011 · 54 citations · 5 references
EngineeringBioengineeringBiomedical EngineeringBioinstrumentationBiomedical Signal ProcessingElectrophysiologyCardiac Signal ProcessingElectrocardiogram AnalysisElectrocardiographyFetal MonitoringFetal Signal ProcessingPhysiological Signal AcquisitionAbdominal Ecg Signal SeparationEcg Feature ExtractionFetal Ecg Signal SeparationFetal Electrocardiogram AnalysisFetal ElectrocardiographyFetal Monitoring AlgorithmsFetal Physiological MonitoringMultichannel Fetal Signal Analysis
This letter presents a successful system for recovering the fetal electrocardiogram using multidimensional ICA (MICA). MICA requires as many observations as sources. To increase the number of observations, MICA is often applied to data sets that include measurements taken at the mother's thoracic region. However, experiments suggest that the propagation from the maternal heart to the mother's abdomen is not a simple delay, and that approach may fail. Alternatively, our method first estimates the maternal ECG directly from the mother's abdomen. Then, inputs this estimated ECG to MICA. Experiments show superior performance as compared with the traditional approach.
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