Family of blind source separation methods based on generalised constant modulus criterion

In this paper, a family of blind source separation methods is presented, based on the extension of the generalised constant modulus criterion for MIMO systems. Different from other constant modulus based algorithms, which either employ the cross-correlation term or rely on the expensive Gram-Schmidt...

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Bibliographic Details
Published inElectronics letters Vol. 47; no. 10; p. 1
Main Authors Gu, N, Nahavandi, S, Yu, W, Creighton, D
Format Journal Article
LanguageEnglish
Published Stevenage John Wiley & Sons, Inc 12.05.2011
Subjects
Algorithms
Computer simulation
Constants
Criteria
Extraction
Inequalities
Mathematical models
Signal processing
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ISSN0013-5194
1350-911X

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Summary:In this paper, a family of blind source separation methods is presented, based on the extension of the generalised constant modulus criterion for MIMO systems. Different from other constant modulus based algorithms, which either employ the cross-correlation term or rely on the expensive Gram-Schmidt orthogonalisation technique to separate the sources successively, the proposed method utilises the Hadamard's inequality to retrieve signals. The main advantage of the proposed method is that the separation matrix can be updated simultaneously with a lower computational complexity. Hence, the propagation of estimation error due to successive source extraction can be prevented. The numerical simulations demonstrate the superior performance of the proposed algorithm.
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ISSN:0013-5194
1350-911X