Blind source separation in frequency domain

Authors:
Yi Zhou;Boling Xu
Affiliations:
Department of Biomedical Engineering, Shanghai Jiaotong University, Shanghai 200031, People's Republic of China;State Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, People's Republic of China
Venue:
Signal Processing
Year:
2003

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Abstract

A blind source separation method based on cross-correlation in frequency domain is performed in this paper. Firstly, the pseudo-solution is described and possible treatment is proposed. Then the oscillation of the un-mixing matrix is proved to be the basic aspect that degrades the separation performance for larger frame size. Finally, a novel average of frequency bin method is addressed. Simulations are provided to confirm the validity of the method.