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Paper Abstract and Keywords
Presentation 2024-12-06 15:15
Message Design for EWS on GNSS -- Developed by Japan-Europe Collaborative work --
Keiko Shimazu (Graduate Institute for Entrepreneurial), Tomoyo Shibata, Michi Hamashita (TMU), Sora Masaki (IST), Yuno Sudo (YMU), Sana Imamura (TMU) SAT2024-57
Abstract (in Japanese) (See Japanese page) 
(in English) This paper describes the message format developed for the Emergency Warning Service (EWS), which issues evacuation orders during disasters using Japan’s satellite positioning system message service. It particularly focuses on the method of representing the evacuation order target area within a limited information region. Using the extremely limited area of 49 bits within a 122-bit length region, we adopted a method to broadcast an elliptical shape that completely encloses any form of the region to convey that people in this area are in danger. Converting the evacuation order target area into a 49-bit length elliptical 5-value representation approximating it with the possible codes and refining it with a 17-bit length makes it possible to make a realistic designation of the evacuation order area. On the other hand, it is necessary to establish an operational environment for evacuation order issuers during disasters, assuming these conversion operations are performed.
Keyword (in Japanese) (See Japanese page) 
(in English) Application of Satellite Positioning Systems / Utilization of Elliptical Equations / Global Grid Representation / Evacuation Instruction / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 289, SAT2024-57, pp. 61-65, Dec. 2024.
Paper # SAT2024-57 
Date of Issue 2024-11-28 (SAT) 
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 SAT2024-57

Conference Information
Committee SAT KOSST  
Conference Date 2024-12-05 - 2024-12-06 
Place (in Japanese) (See Japanese page) 
Place (in English) nest HOTEL sapporoekimae 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite communication technology, etc. 
Paper Information
Registration To SAT 
Conference Code 2024-12-SAT-KOSST 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Message Design for EWS on GNSS 
Sub Title (in English) Developed by Japan-Europe Collaborative work 
Keyword(1) Application of Satellite Positioning Systems  
Keyword(2) Utilization of Elliptical Equations  
Keyword(3) Global Grid Representation  
Keyword(4) Evacuation Instruction  
Keyword(5)  
Keyword(6)  
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1st Author's Name Keiko Shimazu  
1st Author's Affiliation Graduate Institute for Entrepreneurial (Graduate Institute for Entrepreneurial)
2nd Author's Name Tomoyo Shibata  
2nd Author's Affiliation Tokyo Metropolitan University (TMU)
3rd Author's Name Michi Hamashita  
3rd Author's Affiliation Tokyo Metropolitan University (TMU)
4th Author's Name Sora Masaki  
4th Author's Affiliation Institute of Science Tokyo (IST)
5th Author's Name Yuno Sudo  
5th Author's Affiliation †YOKOHAMA National University (YMU)
6th Author's Name Sana Imamura  
6th Author's Affiliation Tokyo Metropolitan University (TMU)
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Speaker Author-1 
Date Time 2024-12-06 15:15:00 
Presentation Time 25 minutes 
Registration for SAT 
Paper # SAT2024-57 
Volume (vol) vol.124 
Number (no) no.289 
Page pp.61-65 
#Pages 5 
Date of Issue 2024-11-28 (SAT) 

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