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Fast Convergence Blind Source Separation Using Frequency Subband Interpolation by Null Beamforming

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dc.contributor.author Keiichi Osako en
dc.contributor.author Yoshimitsu Mori en
dc.contributor.author Yu Takahashi en
dc.contributor.author Hiroshi Saruwatari en
dc.contributor.author Kiyohiro Shikano en
dc.date.accessioned 2012-07-05T07:00:49Z en
dc.date.available 2012-07-05T07:00:49Z en
dc.date.issued 2008-06 en
dc.identifier.issn 0916-8508 en
dc.identifier.uri http://hdl.handle.net/10061/7832 en
dc.description.abstract We propose a new algorithm for the blind source separation (BSS) approach in which independent component analysis (ICA) and frequency subband beamforming interpolation are combined. The slow convergence of the optimization of the separation filters is a problem in ICA. Our approach to resolving this problem is based on the relationship between ICA and null beamforming (NBF). The proposed method consists of the following three parts: (I) a frequency subband selector part for learning ICA, (II) a frequency domain ICA part with direction-of-arrivals (DOA) estimation of sound sources, and (III) an interpolation part in which null beamforming constructed with the estimated DOA is used. The results of the signal separation experiments under a reverberant condition reveal that the convergence speed is superior to that of the conventional ICA-based BSS methods. en
dc.language.iso en en
dc.publisher 電子情報通信学会 ja
dc.rights Copyright (C) 2008 電子情報通信学会. ja
dc.subject blind source separation en
dc.subject independent component analysis en
dc.subject null beamforming en
dc.subject DOA estimation en
dc.title Fast Convergence Blind Source Separation Using Frequency Subband Interpolation by Null Beamforming en
dc.type.nii Journal Article en
dc.textversion publisher en
dc.identifier.ncid AA10826239 en
dc.identifier.jtitle IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences en
dc.identifier.volume E91-A en
dc.identifier.issue 6 en
dc.identifier.spage 1357 en
dc.identifier.epage 1361 en
dc.relation.doi 10.1093/ietfec/e91-a.6.1357 en

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