| Presentation | 2003/10/17 A Cascade Form Blind Source Separation Connecting Source Separation and Linearization for Instantaneous Nonlinear Mixtures Takayuki NISIWAKI, Kenji NAKAYAMA, Akihiro HIRANO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A network structure and its learning algorithm have been proposed for blind source separation applied to nonlinear mixtures. The network has a cascade form consists of a source separation block and a linearization block in this order. The conventional learning algorithm is employed for the separation block. A new learning algorithm is proposed for the linearization block assuming 2nd-order nonlinearity. After, source separation, the outputs include the nonlinear components for the same signal sources. This nonlinearity is suppressed through the linearization block. Parameters in this block are iteratively adjusted based on a process of solving a 2nd-order equation of a signal variable. Simulation result, using 2-channel speech signals and a instantaneous nonlinear mixing process, show good separation performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Signal source separation / Nonlinear / Signal separation circuit / Linearization circuit / Speech signal / Learning algorithm |
| Paper # | DSP2003-126,ICD2003-124,IE2003-86 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 2003/10/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Assistant | |
| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Cascade Form Blind Source Separation Connecting Source Separation and Linearization for Instantaneous Nonlinear Mixtures |
| Sub Title (in English) | |
| Keyword(1) | Signal source separation |
| Keyword(2) | Nonlinear |
| Keyword(3) | Signal separation circuit |
| Keyword(4) | Linearization circuit |
| Keyword(5) | Speech signal |
| Keyword(6) | Learning algorithm |
| 1st Author's Name | Takayuki NISIWAKI |
| 1st Author's Affiliation | Graduate School of Natural Science ; Technology, Kanazawa Univ.() |
| 2nd Author's Name | Kenji NAKAYAMA |
| 2nd Author's Affiliation | Dept. of Information and Systems Eng., Faculty of Eng., Kanazawa Univ. |
| 3rd Author's Name | Akihiro HIRANO |
| 3rd Author's Affiliation | Dept. of Information and Systems Eng., Faculty of Eng., Kanazawa Univ. |
| Date | 2003/10/17 |
| Paper # | DSP2003-126,ICD2003-124,IE2003-86 |
| Volume (vol) | vol.103 |
| Number (no) | 380 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |