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| Presentation | 2022-03-09 13:50 A Feasibility Study of Precise Positioning for Pedestrian Trajectories Using QZSS CLAS Hideo Makino, Yoshinobu Maeda, Masashi Takahashi, Toru Adachi (Niigata Univ.), Makoto Kobayashi, Daisuke Wakatsuki (Tsukuba Univ. Tech.), Jun Izutsu, Satoru Sugita, Hiromichi Fukui (Chubu Univ.)  WIT2021-55 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We conducted high-precision positioning experiments using the Quasi-Zenith Satellite System (QZSS) and centimeter-level augmentation service (CLAS) framework to realize positioning for visually impaired people walking outdoors and provide the position information to emergency personnel in the event of a large-scale disaster. Two methods were used. In method 1, centimeter-level positioning augmentation information from the QZSS was recorded using a receiver (Mosaic-CLAS) with a single antenna. Method 2 implemented the CLAS-based real-time kinematic correction system (CLARCS) through a mobile communication line and a receiver (AsteRx-m3) with dual-antenna. Outdoor walking experiments involving method 1 were performed in the Niigata University campus. The antennas were attached near the shoulder of the participant. Experiments involving method 2 were conducted in a downtown area (Ginza, Tokyo) surrounded by buildings. Results demonstrated that decimeter-level positioning could be realized in the open sky area in Niigata University. In the urban area, an error of several meters occurred owing to the influence of the multipath and other factors. However, the positioning accuracy was satisfactory at the intersection. Furthermore, we examined the application of the system for speech navigation. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | QZSS / CLARCS / CLAS / Visually impaired / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 418, WIT2021-55, pp. 71-76, March 2022. | |
| Paper # | WIT2021-55 | |
| Date of Issue | 2022-03-01 (WIT) | |
| ISSN | Print edition: ISSN 0913-5685 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 | WIT2021-55 |
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| Conference Information | |
| Committee | WIT IPSJ-AAC |
| Conference Date | 2022-03-08 - 2022-03-09 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | WIT |
| Conference Code | 2022-03-WIT-AAC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Feasibility Study of Precise Positioning for Pedestrian Trajectories Using QZSS CLAS |
| Sub Title (in English) | |
| Keyword(1) | QZSS |
| Keyword(2) | CLARCS |
| Keyword(3) | CLAS |
| Keyword(4) | Visually impaired |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hideo Makino |
| 1st Author's Affiliation | Niigata University (Niigata Univ.) |
| 2nd Author's Name | Yoshinobu Maeda |
| 2nd Author's Affiliation | Niigata University (Niigata Univ.) |
| 3rd Author's Name | Masashi Takahashi |
| 3rd Author's Affiliation | Niigata University (Niigata Univ.) |
| 4th Author's Name | Toru Adachi |
| 4th Author's Affiliation | Niigata University (Niigata Univ.) |
| 5th Author's Name | Makoto Kobayashi |
| 5th Author's Affiliation | Tsukuba University of Technology (Tsukuba Univ. Tech.) |
| 6th Author's Name | Daisuke Wakatsuki |
| 6th Author's Affiliation | Tsukuba University of Technology (Tsukuba Univ. Tech.) |
| 7th Author's Name | Jun Izutsu |
| 7th Author's Affiliation | Chubu University (Chubu Univ.) |
| 8th Author's Name | Satoru Sugita |
| 8th Author's Affiliation | Chubu University (Chubu Univ.) |
| 9th Author's Name | Hiromichi Fukui |
| 9th Author's Affiliation | Chubu University (Chubu Univ.) |
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| Speaker | 1 |
| Date Time | 2022-03-09 13:50:00 |
| Presentation Time | 25 |
| Registration for | WIT |
| Paper # | IEICE-WIT2021-55 |
| Volume (vol) | IEICE-121 |
| Number (no) | no.418 |
| Page | pp.71-76 |
| #Pages | IEICE-6 |
| Date of Issue | IEICE-WIT-2022-03-01 |
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