Blind source separation in the time-frequency domain based on multiple hypothesis testing.

This paper considers a time-frequency ( - )-based approach for blind separation of nonstationary signals. In particular, we propose a time-frequency “point selection” algorithm based on multiple hypothesis testing, which allows automatic selection of auto- or cross-source locations in the time-frequency plane. The selected - points are then used via a joint diagonalization and off-diagonalization algorithm to perform source separation. The proposed algorithm is developed assuming deterministic signals with additive white complex Gaussian noise. A performance comparison of the proposed and existing approaches is provided.

Main Author: Cirillo, Luke.
Other Authors: Zoubir, Abdelhak., Amin, Moeness.
Format: Villanova Faculty Authorship
Language: English
Published: 2008
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