A real-time DSP blind signal separation experimental system based on a new simplified mixing model

P. He, P.C.W. Sommen, B. Yin

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

A real-time blind signal separation experimental system has been designed and implemented using TMS320C40 DSP and LabVIEW virtual instruments software. The system is based on a new simplified mixing model that we proposed recently. The simplified model uses the fact that the acoustic transfer functions from a single source to two closely spaced (approximately several 10 cm apart from each other) microphones are very similar. Only the difference between these two transfer functions is needed. The main function of this DSP system is using the measured difference between two impulse responses (DIR) from one source to two microphones to realize the real-time blind signal separation. The real-time experimental results have shown that the proposed simplified mixing model is feasible. In particular, the blind separation performance can be improved considerably by introducing a time delay to solve the inverse problem of a non-minimum phase transfer function.
Originele taal-2Engels
TitelProceedings Eurocon '2001, International Conference on Trends in Communications
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's467-470
Aantal pagina's4
ISBN van geprinte versie0-7803-6490-2
DOI's
StatusGepubliceerd - 2001
Evenementconference; Eurocon '2001, International Conference on Trends in Communications, Bratislava, Slovakia; 2001-07-04; 2001-07-07 -
Duur: 4 jul. 20017 jul. 2001

Congres

Congresconference; Eurocon '2001, International Conference on Trends in Communications, Bratislava, Slovakia; 2001-07-04; 2001-07-07
Periode4/07/017/07/01
AnderEurocon '2001, International Conference on Trends in Communications, Bratislava, Slovakia

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