| Presentation | 2005-11-17 Blind Souce Separation under a noisy environment Impruvement of subspace method and noise control in real environment Ryouta SHIMIZU, Toshihiro FURUKAWA, Nari TANABE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Not only in the communication system and the signal processing, but also in blind souce separation in a real environment, the performance of the noise suppression is one of the main research themes. Recently, to this theme, the technique based on the subspace method attracts attention. This method uses both signal subspace and noise subspace which are generated by eigendecomposition with auto correlation matrix of received signal, and the reduction of noise is attempted by projecting the received signal to the signal subspace. Though this technique can reduce the noise in the noise space, it cannot reduce the noise in the signal space. In this paper, we propose the method for solving this problem, and try to use both a past method and the proposed method adaptively according to SNR(Signal to Noise Ratio). As a result, it was confirmed that our methods are effective in a real environment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | blind souce separation / subspace method / signal subspace / noise subspace / noise control / SNR |
| Paper # | IN2005-102 |
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| Conference Information | |
| Committee | IN |
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| Conference Date | 2005/11/10(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Information Networks (IN) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Blind Souce Separation under a noisy environment Impruvement of subspace method and noise control in real environment |
| Sub Title (in English) | |
| Keyword(1) | blind souce separation |
| Keyword(2) | subspace method |
| Keyword(3) | signal subspace |
| Keyword(4) | noise subspace |
| Keyword(5) | noise control |
| Keyword(6) | SNR |
| 1st Author's Name | Ryouta SHIMIZU |
| 1st Author's Affiliation | Tokyo University of Science() |
| 2nd Author's Name | Toshihiro FURUKAWA |
| 2nd Author's Affiliation | Tokyo University of Science |
| 3rd Author's Name | Nari TANABE |
| 3rd Author's Affiliation | Tokyo Institute of Technology |
| Date | 2005-11-17 |
| Paper # | IN2005-102 |
| Volume (vol) | vol.105 |
| Number (no) | 408 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |