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| Presentation | 2014-01-27 13:00 Position and velocity imaging of moving objects using the M-sequence modulated ultrasound Yohei Ikari, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Inst. of Tech.)  US2013-86 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Pulse compression using M-sequence modulated signals can improve the SNR of the reflected echo and distance resolution in the pluse-echo method. In the case of a moving object, however, the echo is modulated due to the Doppler effect. The Doppler-shifted M-sequence modulated signal cannot be correlated with the reference signal, which is the transmitted phase or amplitude modulated signal with M-sequence. Therefore, Doppler velocity estimation from spectral characteristics of M-sequence modulated signals before the correlation process and cross correlation of the received signal with the Doppler-shifted reference signal has been proposed. In this report, Doppler velocity and two-dimensional position estimation with microphone array is described. Then, accuracy and resolution of the estimated Doppler velocity and position are verified by experiments.. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Airborne ultrasonics / Doppler velocity estimation / Maximum-length sequence / Microphone array / Distance and velocity measurement / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 412, US2013-86, pp. 25-30, Jan. 2014. | |
| Paper # | US2013-86 | |
| Date of Issue | 2014-01-20 (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 | US2013-86 |
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| Conference Information | |
| Committee | EA US |
| Conference Date | 2014-01-27 - 2014-01-28 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kansai University, Centenary Memorial Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics，and Related Topics |
| Paper Information | |
| Registration To | US |
| Conference Code | 2014-01-EA-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Position and velocity imaging of moving objects using the M-sequence modulated ultrasound |
| Sub Title (in English) | |
| Keyword(1) | Airborne ultrasonics |
| Keyword(2) | Doppler velocity estimation |
| Keyword(3) | Maximum-length sequence |
| Keyword(4) | Microphone array |
| Keyword(5) | Distance and velocity measurement |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yohei Ikari |
| 1st Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
| 2nd Author's Name | Shinnosuke Hirata |
| 2nd Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
| 3rd Author's Name | Hiroyuki Hachiya |
| 3rd Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
| Speaker | Author-1 |
| Date Time | 2014-01-27 13:00:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2013-86 |
| Volume (vol) | vol.113 |
| Number (no) | no.412 |
| Page | pp.25-30 |
| #Pages | 6 |
| Date of Issue | 2014-01-20 (US) |
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