Journal
IEEE SIGNAL PROCESSING LETTERS
Volume 18, Issue 3, Pages 161-164Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LSP.2011.2104415
Keywords
Fetal ECG extraction; independent component analysis
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Funding
- Andalusian government [P07-TIC-02865]
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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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