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| Presentation | 2019-05-31 10:00 [Technology Exhibit] QZSS short message SS-CDMA communication system -- Evaluation of transmitting timing control error -- Hiroshi Oguma, Rei Kawai, Takumi Shimada (NIT, Toyama), Takeshi Asai (Next-Dimension), Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku Univ.)  SR2019-12 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have proposed Spread Spectrum Code Division Multiple Access (SS-CDMA) short message communication using Quasi-Zenith Satellite System (QZSS) for safety confirmation system at the time of large disaster. The proposed system controls the transmission timing using highly accurate time and position information obtained from the QZSS. In order to realize the proposed system, we evaluate the time synchronization accuracy. In this paper, the architecture result of a transmitting timing control system is described, and the transmitting timing control error is evaluated. As a result of evaluating t transmitting timing control error, the clock-frequency errors needed are less than 5 ppm. It is found that sufficient timing control accuracy for proposal system implementation is obtainable. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Satellite Communication / Quasi-Zenith Satellite System (QZSS) / Global Positioning System (GPS) / Spread Spectrum (SS) / Code-Division Multiple-Access (CDMA) / Field Programmable Gate Array (FPGA) / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 62, SR2019-12, pp. 71-77, May 2019. | |
| Paper # | SR2019-12 | |
| Date of Issue | 2019-05-23 (SR) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SR2019-12 |
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| Conference Information | |
| Committee | SR |
| Conference Date | 2019-05-30 - 2019-05-31 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Big Sight |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Technical Exhibition, LPWA, General |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2019-05-SR |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | QZSS short message SS-CDMA communication system |
| Sub Title (in English) | Evaluation of transmitting timing control error |
| Keyword(1) | Satellite Communication |
| Keyword(2) | Quasi-Zenith Satellite System (QZSS) |
| Keyword(3) | Global Positioning System (GPS) |
| Keyword(4) | Spread Spectrum (SS) |
| Keyword(5) | Code-Division Multiple-Access (CDMA) |
| Keyword(6) | Field Programmable Gate Array (FPGA) |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hiroshi Oguma |
| 1st Author's Affiliation | NIT, Toyama (NIT, Toyama) |
| 2nd Author's Name | Rei Kawai |
| 2nd Author's Affiliation | NIT, Toyama (NIT, Toyama) |
| 3rd Author's Name | Takumi Shimada |
| 3rd Author's Affiliation | NIT, Toyama (NIT, Toyama) |
| 4th Author's Name | Takeshi Asai |
| 4th Author's Affiliation | Next-Dimension Co. Ltd (Next-Dimension) |
| 5th Author's Name | Mizuki Motoyoshi |
| 5th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 6th Author's Name | Suguru Kameda |
| 6th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 7th Author's Name | Noriharu Suematsu |
| 7th Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2019-05-31 10:00:00 |
| Presentation Time | 420 minutes |
| Registration for | SR |
| Paper # | SR2019-12 |
| Volume (vol) | vol.119 |
| Number (no) | no.62 |
| Page | pp.71-77 |
| #Pages | 7 |
| Date of Issue | 2019-05-23 (SR) |
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