Single channel blind source separation based local mean decomposition for biomedical applications

Annu Int Conf IEEE Eng Med Biol Soc. 2013:2013:6812-5. doi: 10.1109/EMBC.2013.6611121.

Abstract

Single Channel Blind Source Separation (SCBSS) is an extreme case of underdetermined (more sources and fewer sensors) Blind Source Separation (BSS) problem. In this paper, we propose a novel technique using Local Mean Decomposition (LMD) and Independent Component Analysis (ICA) combined with single channel BSS (LMD_ICA). First, the LMD was used to decompose the single channel source into a series of data sequences, which are called as Product Functions (PF), then, ICA algorithm was used to process PFs to get similar independent components and extract the original signals. A comparison was made between LMD_ICA and previously proposed single channel ICA method (EEMD_ICA). The real time experimental results demonstrated the advantage of the proposed single channel source separation method for artifact removal and in biomedical source separation applications.

MeSH terms

  • Algorithms*
  • Electrocardiography / methods*
  • Electroencephalography / methods*
  • Humans
  • Models, Statistical
  • Signal Processing, Computer-Assisted*