Separating sources from sequentially acquired mixtures of heart signals

In this paper, we consider the problem of separating a set of independent components when only one movable sensor is available to record the mixtures. We propose to exploit the quasi-periodicity of the heart signals to transform the signal from this one moving sensor, into a set of measurements, as if from a virtual array of sensors. We then use ICA to perform source separation. We show that this technique can be applied to heart sounds and to electrocardiograms.

• Type: Journal
• Year: 2011
• Where: ICASSP
• Authors: Fábio de Lima Hedayioglu, Maria G. Jafari, Sandra da Silva Mattos, Mark D. Plumbley, Miguel T. Coimbra
• Keywords: ICASSP 2011, Independent Components, Movable Sensor, Sensors, Signal Processing