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| 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 |
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| 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 | 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 | ITS2021-1 |
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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 | 6 |
| Date of Issue | 2021-06-25 (ITS) |
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