| Presentation | 2018-03-12 An Accelerated Adjustment Method for Directivity Pattern of Microphone Array Based on KKT Condition Takeshi Isomoto, Kenji Suyama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For a high S/N sound capture, it is effective to form a directivity pattern of a microphone array. However, it is necessary to adjust the directivity pattern with time for moving sound sources. In this study, an accelerated redesign method using the designed directivity pattern is proposed for the moving sound sources. In the redesign, null directions for interference sources and a beam direction for a target sound source are adjusted based on KKT (Karush-Kuhn-Tucker) condition. Several redesign examples are shown to present the effectiveness of the proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | microphone array / directivity pattern / optimization |
| Paper # | CAS2017-142,CS2017-96 |
| Date of Issue | 2018-03-05 (CAS, CS) |
| Conference Information | |
| Committee | CS / CAS |
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| Conference Date | 2018/3/12(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nishijin Plaza, Kyushu University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network processor, Signal processing and circuits for communications, Wireless LAN / PAN, etc. |
| Chair | Tetsuya Yokotani(Kanazawa Inst. of Tech.) / Mitsuru Hiraki(Renesas) |
| Vice Chair | Hidenori Nakazato(Waseda Univ.) / Hideaki Okazaki(Shonan Inst. of Tech.) |
| Secretary | Hidenori Nakazato(Kyushu Univ.) / Hideaki Okazaki(NTT) |
| Assistant | Kenji Kanai(Waseda Univ.) / Kazutaka Hara(NTT) / Yohei Nakamura(Hitachi) |
| Paper Information | |
| Registration To | Technical Committee on Communication Systems / Technical Committee on Circuits and Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Accelerated Adjustment Method for Directivity Pattern of Microphone Array Based on KKT Condition |
| Sub Title (in English) | |
| Keyword(1) | microphone array |
| Keyword(2) | directivity pattern |
| Keyword(3) | optimization |
| 1st Author's Name | Takeshi Isomoto |
| 1st Author's Affiliation | Tokyo Denki University(Tokyo Denki Univ.) |
| 2nd Author's Name | Kenji Suyama |
| 2nd Author's Affiliation | Tokyo Denki University(Tokyo Denki Univ.) |
| Date | 2018-03-12 |
| Paper # | CAS2017-142,CS2017-96 |
| Volume (vol) | vol.117 |
| Number (no) | CAS-503,CS-504 |
| Page | pp.pp.53-58(CAS), pp.53-58(CS), |
| #Pages | 6 |
| Date of Issue | 2018-03-05 (CAS, CS) |