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Titolo:
Blind separation of linear instantaneous mixtures using closed-form estimators
Autore:
Herrmann, F; Nandi, AK;
Indirizzi:
Univ Liverpool, Dept Elect Engn & Elect, Liverpool L69 3GJ, Merseyside, England Univ Liverpool Liverpool Merseyside England L69 3GJ , Merseyside, England
Titolo Testata:
SIGNAL PROCESSING
fascicolo: 7, volume: 81, anno: 2001,
pagine: 1537 - 1556
SICI:
0165-1684(200107)81:7<1537:BSOLIM>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
INDEPENDENT COMPONENT ANALYSIS; MAXIMUM-LIKELIHOOD; MAXIMIZATION; INFORMATION; ALGORITHMS;
Keywords:
higher-order statistics; blind source separation (BSS); closed-form BSS estimators; blind parameter identification; independent component analysis (ICA); minimum mutual information; higher-order correlations;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Nandi, AK Univ Liverpool, Dept Elect Engn & Elect, Brownlow Hill, Liverpool L69 3GJ,Merseyside, England Univ Liverpool Brownlow Hill Liverpool Merseyside England L69 3GJ
Citazione:
F. Herrmann e A.K. Nandi, "Blind separation of linear instantaneous mixtures using closed-form estimators", SIGNAL PROC, 81(7), 2001, pp. 1537-1556

Abstract

This paper elaborates the mathematical background for blind source separation of instantaneous linear mixtures. An objective function based on the discrimination of the observed probability distribution function (pdf) and the normal density is developed. From there, the maximisation of squared cumulant principle is deduced which generally suffices to achieve separation oflinear mixtures. This framework implies a number of closed-form estimatorssome of which are new and others are known. In particular, the newly proposed MaSSFOC estimator has more general applicability than the hitherto well-known estimators of similar type, like 'ML', 'CF', 'EML', etc. Results from comprehensive computer experiments are presented to illustrate the performances of the incorporated estimators as well as their limitations. (C) 2001 Elscvier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 20:13:35