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| Presentation | 2008-02-26 15:10 Experiments of ultrasonic distance measurement using cross-correlation by single-bit signal processing Shinnosuke Hirata, Minoru Kurosawa (Tokyo Tech), Takashi Katagiri (Sutekina Inc.)  US2007-117 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Ultrasonic distance measurement with the pulse-echo method is based upon the determination of the time of flight of ultrasonic waves. The pulse-compression technique, which involves the calculation of the cross-correlation function between the transmitted and the reflected waves, is the conventional method for improving the resolution of the measurement. The calculation of a cross-correlation operation requires high-cost digital signal processing, however. A new sensor signal processing method of the pulse-compression technique using a delta-sigma modulated single-bit digital signal has been proposed. The proposed method consists of a cross-correlation operation by single-bit signal processing, and a smoothing operation accomplished by a moving average filter. For the pulse-compression technique, this method reduces the calculation cost of digital signal processing. In this paper, cross-correlation by single-bit signal processing has been evaluated by experiment of ultrasonic distance measurement. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | ultrasonic distance measurement / single-bit signal processing / delta-sigma modulation / pulse compression / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 494, US2007-117, pp. 49-54, Feb. 2008. | |
| Paper # | US2007-117 | |
| Date of Issue | 2008-02-19 (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) | |
| Download PDF | US2007-117 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2008-02-26 - 2008-02-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Elm Hall, Ichigaya Bldg., Sharp Corp. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Acoustic Imaging |
| Paper Information | |
| Registration To | US |
| Conference Code | 2008-02-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experiments of ultrasonic distance measurement using cross-correlation by single-bit signal processing |
| Sub Title (in English) | |
| Keyword(1) | ultrasonic distance measurement |
| Keyword(2) | single-bit signal processing |
| Keyword(3) | delta-sigma modulation |
| Keyword(4) | pulse compression |
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| Keyword(8) | |
| 1st Author's Name | Shinnosuke Hirata |
| 1st Author's Affiliation | Tokyo Institute of Technology (Tokyo Tech) |
| 2nd Author's Name | Minoru Kurosawa |
| 2nd Author's Affiliation | Tokyo Institute of Technology (Tokyo Tech) |
| 3rd Author's Name | Takashi Katagiri |
| 3rd Author's Affiliation | Sutekina Inc. (Sutekina Inc.) |
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| Speaker | Author-1 |
| Date Time | 2008-02-26 15:10:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2007-117 |
| Volume (vol) | vol.107 |
| Number (no) | no.494 |
| Page | pp.49-54 |
| #Pages | 6 |
| Date of Issue | 2008-02-19 (US) |
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