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Paper Abstract and Keywords
Presentation 2017-11-17 10:50
Side-Lobe Suppression for Air-Coupled Ultrasonic Sensors Attached on the Back Side of Automobile Bumpers
Koji Ibata, Rokuzo Hara, Tomonori Kimura, Yasuhiro Nishioka, Naofumi Yoneda, Satoru Inoue (Mitsubishi Electric) US2017-66
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, preventive safety systems for automobiles such as parking assistance systems have evolved considerably and have become prevalent. Obstacle detection devices for parking assistance systems typically make use of air-coupled ultrasonic sensors. Ultrasonic sensors are usually attached to automobiles through through-holes in their bumpers. For this reason, new structures with ultrasonic sensors attached on the back side of bumpers without through-holes are being required. However, the directional characteristics of ultrasonic waves radiated from these structures are affected by the bumper, and then side-lobes occur. In this paper, the method of side-lobes suppression is examined. We attempt to reduce the side-lobes by suppressing the unnecessary vibrations on the bumper using annular convex rings made of aluminum. We show that the side-lobes can be reduced by suppressing bumper vibrations.
Keyword (in Japanese) (See Japanese page) 
(in English) Air-Coupled Ultrasonic Sensor / Directional Characteristic / Automobile / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 311, US2017-66, pp. 13-16, Nov. 2017.
Paper # US2017-66 
Date of Issue 2017-11-10 (US) 
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 US  
Conference Date 2017-11-17 - 2017-11-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Honda Electronics Co. Ltd. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To US 
Conference Code 2017-11-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Side-Lobe Suppression for Air-Coupled Ultrasonic Sensors Attached on the Back Side of Automobile Bumpers 
Sub Title (in English)  
Keyword(1) Air-Coupled Ultrasonic Sensor  
Keyword(2) Directional Characteristic  
Keyword(3) Automobile  
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1st Author's Name Koji Ibata  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
2nd Author's Name Rokuzo Hara  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
3rd Author's Name Tomonori Kimura  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
4th Author's Name Yasuhiro Nishioka  
4th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
5th Author's Name Naofumi Yoneda  
5th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
6th Author's Name Satoru Inoue  
6th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
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Speaker Author-1 
Date Time 2017-11-17 10:50:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2017-66 
Volume (vol) vol.117 
Number (no) no.311 
Page pp.13-16 
#Pages 4 
Date of Issue 2017-11-10 (US) 

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