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Paper Abstract and Keywords
Presentation 2021-07-02 13:05
Error Reduction Method employing Dither Method with Interfering Signals for Distance Estimation Technique
Seiya Horiuchi, Hiroyuki Hatano, Kosuke Sanada, Kazuo Mori (Mie Univ.), Takaya Yamazato (Nagoya Univ.), Shintaro Arai (Okayama Univ. of Science), Masato Saito (Univ. of the Ryukyus), Yukihiro Tadokoro, Hiroya Tanaka (Toyota CRDL) ITS2021-1
Abstract (in Japanese) (See Japanese page) 
(in English) In positioning systems, the Received Signal Strength Indicator (RSSI) is actively used to measure between user’s device and known anchors distances. The accuracy of the RSSI measurement depends on the number of quantization levels of the A/D converter. This quantization error directly affects the estimation accuracy in the distance measurements. In this research, we apply the Dither method which takes account of interference signals from surrounding wireless terminals to reduce the distance estimation error caused by the quantization at A/D converter. It is possible to derive the distribution characteristics of the received signal by the interference signals. We apply Kernel density estimation to generate the distribution and Kullback-Leibler Divergence to evaluate the distribution characteristics. As a result, it is confirmed through computer simulation that our proposal can reduce the distance estimation error by A/D converter and the accuracy of the distance estimation by RSSI is improved.
Keyword (in Japanese) (See Japanese page) 
(in English) Dither method / Interference signal / RSSI / A/D converter / Distance Estimation / Kernel density estimation / KL-Divergence /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 86, ITS2021-1, pp. 1-6, July 2021.
Paper # ITS2021-1 
Date of Issue 2021-06-25 (ITS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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 ITS  
Conference Date 2021-07-02 - 2021-07-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ITS Positioning, etc. 
Paper Information
Registration To ITS 
Conference Code 2021-07-ITS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Error Reduction Method employing Dither Method with Interfering Signals for Distance Estimation Technique 
Sub Title (in English)  
Keyword(1) Dither method  
Keyword(2) Interference signal  
Keyword(3) RSSI  
Keyword(4) A/D converter  
Keyword(5) Distance Estimation  
Keyword(6) Kernel density estimation  
Keyword(7) KL-Divergence  
Keyword(8)  
1st Author's Name Seiya Horiuchi  
1st Author's Affiliation Mie University (Mie Univ.)
2nd Author's Name Hiroyuki Hatano  
2nd Author's Affiliation Mie University (Mie Univ.)
3rd Author's Name Kosuke Sanada  
3rd Author's Affiliation Mie University (Mie Univ.)
4th Author's Name Kazuo Mori  
4th Author's Affiliation Mie University (Mie Univ.)
5th Author's Name Takaya Yamazato  
5th Author's Affiliation Nagoya University (Nagoya Univ.)
6th Author's Name Shintaro Arai  
6th Author's Affiliation Okayama University of Science (Okayama Univ. of Science)
7th Author's Name Masato Saito  
7th Author's Affiliation University of the Ryukyus (Univ. of the Ryukyus)
8th Author's Name Yukihiro Tadokoro  
8th Author's Affiliation Toyota Central R&D Labs., Inc., (Toyota CRDL)
9th Author's Name Hiroya Tanaka  
9th Author's Affiliation Toyota Central R&D Labs., Inc., (Toyota CRDL)
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Speaker Author-1 
Date Time 2021-07-02 13:05:00 
Presentation Time 25 minutes 
Registration for ITS 
Paper # ITS2021-1 
Volume (vol) vol.121 
Number (no) no.86 
Page pp.1-6 
#Pages
Date of Issue 2021-06-25 (ITS) 


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