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Paper Abstract and Keywords
Presentation 2015-07-24 13:50
Proposal of Estimation Method of Satellite Signal Reception Characteristics for efficient GPS Antenna setting
Keisuke Nishi, Seiji Yoshida, Takashi Hirose (NTT) SANE2015-27
Abstract (in Japanese) (See Japanese page) 
(in English) As base stations for mobile communication systems based on TDD (Time Division Duplex), such as TD-LTE, require highly precise time synchronization of 1µs order, time synchronization methods employing Global Navigation Satellite Systems such as GPS are widely deployed. However, when adding base stations in the urban area of high traffic demands, the case navigation satellite signals cannot be received properly is assumed. For the purpose of achieving optimization of GPS antennas locations efficiently, we studied estimation methods of satellite signals reception characteristics by specifying structures which interrupt satellite signals reception in LOS state with sky photo images of surroundings taken with an all-direction camera with a fish-eye lens and calculating orbits of navigation satellites. In this report, the procedure of aligning optical axe of fish-eye lens which is an important process to achieve precise estimation of satellite signals reception characteristics is presented in detail along with applications of these methods.
Keyword (in Japanese) (See Japanese page) 
(in English) Mobile / Base Station / TD-LTE / TDD / Time Synchronization / GPS / Fish-eye Lens /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 155, SANE2015-27, pp. 23-28, July 2015.
Paper # SANE2015-27 
Date of Issue 2015-07-17 (SANE) 
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)
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Conference Information
Committee SANE  
Conference Date 2015-07-24 - 2015-07-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Electric Navigation Research Institute 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Navigation, trafic control and general 
Paper Information
Registration To SANE 
Conference Code 2015-07-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of Estimation Method of Satellite Signal Reception Characteristics for efficient GPS Antenna setting 
Sub Title (in English)  
Keyword(1) Mobile  
Keyword(2) Base Station  
Keyword(3) TD-LTE  
Keyword(4) TDD  
Keyword(5) Time Synchronization  
Keyword(6) GPS  
Keyword(7) Fish-eye Lens  
Keyword(8)  
1st Author's Name Keisuke Nishi  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Seiji Yoshida  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Takashi Hirose  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2015-07-24 13:50:00 
Presentation Time 25 minutes 
Registration for SANE 
Paper # SANE2015-27 
Volume (vol) vol.115 
Number (no) no.155 
Page pp.23-28 
#Pages 6 
Date of Issue 2015-07-17 (SANE) 

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