Title :
Single autoterms selection for blind source separation in time-frequency plane
Author :
Holobar, Ales ; Fevotte, Cedric ; Doncarli, Christian ; Zazula, Damjan
Author_Institution :
Fac. of Electr. Eng. & Comput. Sci., Univ. of Maribor, Maribor, Slovenia
Abstract :
We address in this paper a method to perform blind separation of over-determined instantaneous linear mixtures of non-stationary sources. Our contribution is focused on the identification of single source autoterms which correspond to diagonal Spatial Time-Frequency Distribution of the sources vector with only one non-zero diagonal entry. These latter matrices are processed into an iterative joint-diagonalization scheme which provides an estimation of the mixing matrix.
Keywords :
blind source separation; iterative methods; matrix algebra; time-frequency analysis; blind source separation; diagonal spatial time-frequency distribution; iterative joint-diagonalization scheme; mixing matrix estimation; nonstationary sources; nonzero diagonal entry; over-determined instantaneous linear mixtures; single autoterms selection; single source autoterm identification; source vector; time-frequency plane; Abstracts; Blind source separation; Electronic mail; Estimation; Gold; Noise; Subspace constraints;
Conference_Titel :
Signal Processing Conference, 2002 11th European
Conference_Location :
Toulouse
