| Presentation | 2021-07-16 Considerations on Accuracy Improvement in Close DOA Estimation with Deep Learning Yuya Kase, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Takanori Sato, Yoshihisa Kishiyama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In addition to subspace methods such as MUSIC and ESPRIT, recently, compressed sensing and deep learning have been appliedto direction of arrival (DOA) estimation of radio waves using various types of array antennaswith the progress of computing power. The compressed sensing and deep learning are on-grid estimation in general, and thus a discrete spectrum is obtained. In our previous studies on DOA estimation using deep learning, we proposed a method of combining two DNNs, of which grids are staggered, in order to reduce the estimation error occurring when a signal arrives at angles near the grid border. In this paper, we evaluate the estimation accuracy when our proposed method is applied to a close DOA scenario. In addition, we consider the case where the networks trained with and without close DOAs restriction are used in parallel. The simulation results show thatthe RMSE of staggered DNNs is improved by combining a network trained with close DOAs restriction, although it alone is not suitable for the close DOA case. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DOA estimation / array antenna / deep learning / deep neural network |
| Paper # | RCC2021-39,NS2021-55,RCS2021-97,SR2021-39,SeMI2021-28 |
| Date of Issue | 2021-07-07 (RCC, NS, RCS, SR, SeMI) |
| Conference Information | |
| Committee | RCS / SR / NS / SeMI / RCC |
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| Conference Date | 2021/7/14(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Communication and Network Technology of the AI Age, M2M (Machine-to-Machine)，D2D (Device-to-Device)，IoT（Internet of Things）, etc |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Suguru Kameda(Hiroshima Univ.) / Akihiro Nakao(Univ. of Tokyo) / Koji Yamamoto(Kyoto Univ.) / HUAN-BANG LI(NICT) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Tetsuya Oishi(NTT) / Kazuya Monden(Hitachi) / Yasunori Owada(NICT) / Shunichi Azuma(Nagoya Univ.) / Koji Ishii(Kagawa Univ.) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Mie Univ.) / Osamu Takyu(Tokai Univ.) / Kentaro Ishidu(NTT) / Kazuto Yano(NTT) / Tetsuya Oishi(Chuo Univ.) / Kazuya Monden(Cyber Univ.) / Yasunori Owada(Waseda Univ.) / Shunichi Azuma(Osaka Univ.) / Koji Ishii(CRIEPI) |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Mai Ohta(Fukuoka Univ.) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Kotaro Mihara(NTT) / Yuki Katsumata(NTT DOCOMO) / Akihito Taya(Aoyama Gakuin Univ.) / Yu Nakayama(Tokyo Univ. of Agri. and Tech.) / SHAN LIN(NICT) / Masaki Ogura(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Network Systems / Technical Committee on Sensor Network and Mobile Intelligence / Technical Committee on Reliable Communication and Control |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Considerations on Accuracy Improvement in Close DOA Estimation with Deep Learning |
| Sub Title (in English) | |
| Keyword(1) | DOA estimation |
| Keyword(2) | array antenna |
| Keyword(3) | deep learning |
| Keyword(4) | deep neural network |
| 1st Author's Name | Yuya Kase |
| 1st Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 2nd Author's Name | Toshihiko Nishimura |
| 2nd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 3rd Author's Name | Takeo Ohgane |
| 3rd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 4th Author's Name | Yasutaka Ogawa |
| 4th Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 5th Author's Name | Takanori Sato |
| 5th Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 6th Author's Name | Yoshihisa Kishiyama |
| 6th Author's Affiliation | NTT DOCOMO, INC(NTT DOCOMO) |
| Date | 2021-07-16 |
| Paper # | RCC2021-39,NS2021-55,RCS2021-97,SR2021-39,SeMI2021-28 |
| Volume (vol) | vol.121 |
| Number (no) | RCC-101,NS-102,RCS-103,SR-104,SeMI-105 |
| Page | pp.pp.77-82(RCC), pp.118-123(NS), pp.98-103(RCS), pp.100-105(SR), pp.76-81(SeMI), |
| #Pages | 6 |
| Date of Issue | 2021-07-07 (RCC, NS, RCS, SR, SeMI) |