Research project: Time-structure based reconstruction of physiological sources extracted from noisy absominal phonograms
The abdominal phonogram is a signal recorded by a sensitive acoustic sensor positioned on the maternal womb. The signal conveys information which is valuable for antenatal foetal surveillance (e.g. heart sounds and foetal movements), but hidden by maternal and environmental noises. To recover such information, previous work successfully used Single-Channel Independent Component Analysis (SCICA) to decompose the phonogram into independent components (ICs).