| Presentation | 2001/4/20 Blind Source Separation Based on Fast-Convergence Algorithm with ICA and Beamforming Toshiya KAWAMURA, Hiroshi SARUWATARI, Kiyohiro SHIKANO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a new algorithm for blind source separation (BSS), in which independent component analysis (ICA) and beamforming are combined to resolve the low-convergence problem through optimization in ICA. The proposed method consists of the following three parts: (1) frequency-domain ICA with direction-of-arrival (DOA) estimation, (2) null beamforming based on the estimated DOA, and (3) integration of (1) and (2) based on the algorithm diversity in both iteration and frequency domain. The inverse of the mixing matrix obtained by ICA is temporally substituted by the matrix based on null beamforming through iterative optimization, and the temporal alternation between ICA and beamforming can realize fast-and high-convergence optimization. The results of the signal separation experiments reveal that the signal separation performance of the proposed algorithm is superior to that of the conventional ICA-based BSS method, even under reverberant conditions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Blind Source Separation / Fast-Convergence / ICA / Beamforming / Reverberation |
| Paper # | EA2001-2,SP2001-2 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2001/4/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Blind Source Separation Based on Fast-Convergence Algorithm with ICA and Beamforming |
| Sub Title (in English) | |
| Keyword(1) | Blind Source Separation |
| Keyword(2) | Fast-Convergence |
| Keyword(3) | ICA |
| Keyword(4) | Beamforming |
| Keyword(5) | Reverberation |
| 1st Author's Name | Toshiya KAWAMURA |
| 1st Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology() |
| 2nd Author's Name | Hiroshi SARUWATARI |
| 2nd Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology |
| 3rd Author's Name | Kiyohiro SHIKANO |
| 3rd Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology |
| Date | 2001/4/20 |
| Paper # | EA2001-2,SP2001-2 |
| Volume (vol) | vol.101 |
| Number (no) | 31 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |