Non-Orthogonal Zero-Diagonalization for Source Separation based on Time-Frequency Representations
El Mostafa Fadaili, N. Thirion-Moreau, Éric Moreau · 2006
This paper is concerned with blind separation of source signals using time-frequency representations. We show that the separation can be realized through the non-orthogonal joint zero diagonalization of spatial quadratic time frequency matrices. One advantage of the proposed method is that it does not require any whitening stage and thus it is intended to work even with a class of correlated signals.