| Presentation | 2020-11-26 [Invited Lecture] Adaptive digital down-conversion for underwater acoustic communication Mitsuyasu Deguchi, Yukihiro Kida, Takuya Shimura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In underwater acoustic communication, effects of the Doppler shift is much larger than that of the radio communication in air because of the slow propagation speed. Particularly, the nonuniform Doppler shift can affect the demodulation performance severely, and it is difficult to deal with the degradation. In order to suppress effects on changes in received time of data symbols caused by the nonuniform Doppler shift, an adaptive digital down-conversion was proposed. The adaptive digital down-conversion is a method to adjust a down-sampled time for each data symbol adaptively. In this paper, simulation results which show the improvement of the demodulation performance by the adaptive digital down-conversion are reported. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | underwater acoustic communication / digital down-conversion / decision feedback equalizer (DFE) / nonuniform Doppler shift |
| Paper # | AP2020-86,RCS2020-125 |
| Date of Issue | 2020-11-18 (AP, RCS) |
| Conference Information | |
| Committee | RCS / AP |
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| Conference Date | 2020/11/25(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Qiang Chen(Tohoku Univ.) |
| Vice Chair | Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Satoru Kurokawa(AIST) |
| Secretary | Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura(NEC) / Tomoya Tandai(Tokyo Univ. of Agric. & Tech.) / Satoru Kurokawa(NTT DOCOMO) |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Dr. Kim(Niigata Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Antennas and Propagation |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Invited Lecture] Adaptive digital down-conversion for underwater acoustic communication |
| Sub Title (in English) | |
| Keyword(1) | underwater acoustic communication |
| Keyword(2) | digital down-conversion |
| Keyword(3) | decision feedback equalizer (DFE) |
| Keyword(4) | nonuniform Doppler shift |
| 1st Author's Name | Mitsuyasu Deguchi |
| 1st Author's Affiliation | The Japan Agency for Marine-Earth Science and Technology(JAMSTEC) |
| 2nd Author's Name | Yukihiro Kida |
| 2nd Author's Affiliation | The Japan Agency for Marine-Earth Science and Technology(JAMSTEC) |
| 3rd Author's Name | Takuya Shimura |
| 3rd Author's Affiliation | The Japan Agency for Marine-Earth Science and Technology(JAMSTEC) |
| Date | 2020-11-26 |
| Paper # | AP2020-86,RCS2020-125 |
| Volume (vol) | vol.120 |
| Number (no) | AP-248,RCS-249 |
| Page | pp.pp.72-77(AP), pp.87-92(RCS), |
| #Pages | 6 |
| Date of Issue | 2020-11-18 (AP, RCS) |