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- Marc Castella, Saloua Rhioui, Eric Moreau, Jean-Christophe Pesquet
- IEEE Transactions on Signal Processing
- 2007

This paper deals with the problem of source separation in the case when the observations result from a multiple-input multiple-output convolutive mixing system. In a blind framework, higher order contrast functions have been proved to be efficient for extracting sources. Inspired by a semiblind approach, we propose new contrast functions for blind signal… (More)

- Saloua Rhioui, Marc Castella, Eric Moreau
- ICA
- 2006

- Marc Castella, Saloua Rhioui, Eric Moreau, Jean-Christophe Pesquet
- ICASSP
- 2005

In this communication, we propose a new method to blindly identify the mixing matrix of a possibly underdetermined mixture of sources when input signals are cyclostationary with unknown cyclic frequencies. It relies upon a particular linear operator applied to the observations correlation matrix. Then, taking advantage of the properties of the above… (More)

- Saloua Rhioui, Nadège Thirion-Moreau, Eric Moreau
- 2006 IEEE International Conference on Acoustics…
- 2006

In this communication, we propose a new method to blindly identify the mixing matrix of a possibly under-determined mixture of cyclostationary source signals. It is based on the use of a linear operator applied on the observations correlation matrix. Exploiting the properties of the above transformed matrix, a set of cyclic frequencies is first estimated.… (More)

This article addresses the problem of the blind identification of the mixing matrix in the case of a possibly under-determined instantaneous linear mixture of sources. The considered input signals are cyclo-stationary processes with unknown cyclic frequencies. We propose a new method consisting of the application of a particular linear operator on the… (More)

This paper considers the problem of blind separation of a MIMO convolutive mixture of i.i.d. source signals. Separation criteria are considered for the overall extraction of source signals according to the use of so-called reference signals. We present a new MIMO contrast function using reference signals, which is moreover seen to have joint-diagonalization… (More)

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