Underdetermined blind separation of nondisjoint sources in the time-frequency domain

A Aissa-El-Bey, N Linh-Trung… - IEEE Transactions …, 2007 - ieeexplore.ieee.org
This paper considers the blind separation of nonstationary sources in the underdetermined
case, when there are more sources than sensors. A general framework for this problem is to …

Separating more sources than sensors using time-frequency distributions

N Linh-Trung, A Belouchrani, K Abed-Meraim… - EURASIP Journal on …, 2005 - Springer
We examine the problem of blind separation of nonstationary sources in the
underdetermined case, where there are more sources than sensors. Since time-frequency …

Separating more sources than sensors using time-frequency distributions

LT Nguyen, A Belouchrani… - Proceedings of the …, 2001 - ieeexplore.ieee.org
This paper deals with the problem of blind source separation of nonstationary signals of
which only instantaneous linear signals are observed. Exploiting the effectiveness of time …

Underdetermined blind source separation based on relaxed sparsity condition of sources

D Peng, Y Xiang - IEEE Transactions on Signal Processing, 2008 - ieeexplore.ieee.org
Recently, Aissa-El-Bey et al. have proposed two subspace-based methods for
underdetermined blind source separation (UBSS) in time-frequency (TF) domain. These …

A time–frequency blind signal separation method applicable to underdetermined mixtures of dependent sources

F Abrard, Y Deville - Signal processing, 2005 - Elsevier
In this paper, we propose a new blind source separation (BSS) method called TIme–
Frequency Ratio Of Mixtures (TIFROM) which uses time–frequency (TF) information to …

Blind source separation based on time-frequency signal representations

A Belouchrani, MG Amin - IEEE transactions on signal …, 1998 - ieeexplore.ieee.org
Blind source separation consists of recovering a set of signals of which only instantaneous
linear mixtures are observed. Thus far, this problem has been solved using statistical …

Blind separation of underdetermined convolutive mixtures using their time–frequency representation

A Aissa-El-Bey, K Abed-Meraim… - IEEE transactions on …, 2007 - ieeexplore.ieee.org
This paper considers the blind separation of nonstationary sources in the underdetermined
convolutive mixture case. We introduce, two methods based on the sparsity assumption of …

Nonorthogonal joint diagonalization/zero diagonalization for source separation based on time-frequency distributions

EM Fadaili, NT Moreau… - IEEE Transactions on …, 2007 - ieeexplore.ieee.org
This paper deals with the blind separation of instantaneous mixtures of source signals using
time-frequency distributions (TFDs). We propose iterative algorithms to perform the …

Underdetermined blind source separation based on subspace representation

SG Kim, CD Yoo - IEEE Transactions on Signal processing, 2009 - ieeexplore.ieee.org
This paper considers the problem of blindly separating sub-and super-Gaussian sources
from underdetermined mixtures. The underlying sources are assumed to be composed of …

Penalty function-based joint diagonalization approach for convolutive blind separation of nonstationary sources

W Wang, S Sanei, JA Chambers - IEEE Transactions on Signal …, 2005 - ieeexplore.ieee.org
A new approach for convolutive blind source separation (BSS) by explicitly exploiting the
second-order nonstationarity of signals and operating in the frequency domain is proposed …