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- Marcel Joho, Kamran Rahbar
- 2002

This paper addresses the blind signal separation problem in the presence of sensor noise for the case where the source signals are non-stationary and / or non-white. This problem can be formulated asâ€¦ (More)

This paper addresses the blind source separation problem fo r the case where more sensors than source signals are available. A noisy-sensor model is assumed. The proposed algorithm comprises twoâ€¦ (More)

- Marcel Joho, Heinz Mathis
- 2002

Joint diagonalization of several correlation matrices is a powerful tool for blind signal separation. This paper addresse s the blind signal separation problem for the case where the sourc e signalsâ€¦ (More)

This paper describes two efficient realizations of an adapti ve multichannel blind deconvolution algorithm based on the natur al g adient algorithm originally proposed by Amari, Douglas, Cic ho ki,â€¦ (More)

A multipath enabled singular value decomposition (SVD) algorithm is presented, which will allow computation of wideband (polynomial) singular values, and hence, the signal+noise and noise subspaces.â€¦ (More)

- Heinz Mathis, Thomas P. von Hoff, Marcel Joho
- IEEE Trans. Neural Networks
- 2001

A parameterized activation function in the form of an adaptive threshold for a single-layer neural network, which separates a mixture of signals with any distribution (except for Gaussian), isâ€¦ (More)

- Marcel Joho
- ICA
- 2004

We address the blind source separation (BSS) problem for the convolutive mixing case. Second-order statistical methods are employed assuming the source signals are non-stationary and possibly alsoâ€¦ (More)

- Marcel Joho
- SIAM J. Matrix Analysis Applications
- 2008

In this paper we present a Newton method to jointly approximately diagonalize a set of positive definite Hermitian matrices. To this end, we derive the local gradient and Hessian of the underlyingâ€¦ (More)

- Marcel Joho, Heinz Mathis, George Moschytz
- IEEE Signal Processing Letters
- 2001

It is a known fact that blind algorithms have convergence times of an order of magnitude longer than their nonblind counterparts. However, as shown in this letter, the knowledge of a subset ofâ€¦ (More)

- Marcel Joho
- 2000

In many situations related to acoustics and data communications we are confronted with multiple signals received from a multipath mixture, e.g., the famous cocktail-party problem. A multipath mixtureâ€¦ (More)