| Presentation | 2007-01-25 Learning Algorithm Improvement and Source Separation Analysis in Cascade BSS Applied to Nonlinear Mixture Yuya TAKEDA, Kenji NAKAAYAMA, Akihiro HIRANO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A cascade form blind source separation (BSS) has been proposed for nonlinear mixture. It consists of a signal separation block and a linearization block in this order from the input to the output. In this paper, firstly, a learning process for the linearization block is improved. New ideas are introduced for initialization and adjusting of parameters. Performance of linearization is well improved. Furthermore, by ordering the new linearization block and the signal separation block in this order, the number of sensors can be well reduced. For instance, 3 sensors are enough to 3 sources. Secondly, a relation between separation performance and the number of sensors is analyzed based on the cross term components s_is_j, i=⃥j. As the learning makes a progress, separation performances for the different number of sensors approach to the same value. In difficult problems, separation performances are affected by the number of sensors. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | blind source separation / nonlinear mixture / cascade form / linearization / number of sensors / separation performances |
| Paper # | SIP2006-138,RCS2006-196 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2007/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Learning Algorithm Improvement and Source Separation Analysis in Cascade BSS Applied to Nonlinear Mixture |
| Sub Title (in English) | |
| Keyword(1) | blind source separation |
| Keyword(2) | nonlinear mixture |
| Keyword(3) | cascade form |
| Keyword(4) | linearization |
| Keyword(5) | number of sensors |
| Keyword(6) | separation performances |
| 1st Author's Name | Yuya TAKEDA |
| 1st Author's Affiliation | Graduate School of Natural Science and Technology, Kanazawa Univ.() |
| 2nd Author's Name | Kenji NAKAAYAMA |
| 2nd Author's Affiliation | Graduate School of Natural Science and Technology, Kanazawa Univ. |
| 3rd Author's Name | Akihiro HIRANO |
| 3rd Author's Affiliation | Graduate School of Natural Science and Technology, Kanazawa Univ. |
| Date | 2007-01-25 |
| Paper # | SIP2006-138,RCS2006-196 |
| Volume (vol) | vol.106 |
| Number (no) | 479 |
| Page | pp.pp.- |
| #Pages | 6 |
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