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Paper Abstract and Keywords
Presentation 2013-01-24 17:50
Application of pulse compression technique to parametric difference frequency sound
Hideyuki Nomura, Hideo Adachi, Tomoo Kamakura (Univ. of Electro- Comm.), Gregory T. Clement (HMS) US2012-98 EA2012-129
Abstract (in Japanese) (See Japanese page) 
(in English) Parametric difference frequency sound can propagate for long distance, because the energy dissipation of sound in a medium at low frequency is less than those of usual ultrasounds at higher frequency for measurements and medical imaging. However, for applications of difference frequency sound on measurements and imaging, that has the disadvantage of low spatial resolution because of low frequency. In this report, we experimentally demonstrated the generation of parametric difference frequency sound with chirp signal in water, and discussed the application of pulse compression technique to the difference frequency sound to solve the problem of low spatial resolution. The result indicated the realization of pulse compressed parametric difference frequency sound, although the bandwidth of receiving or transmitting transducers restricted the compressed pulse width.
Keyword (in Japanese) (See Japanese page) 
(in English) Nonlinear sound propagation / Parametric difference frequency sound / Chirp signal / Pulse compression / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 387, US2012-98, pp. 59-62, Jan. 2013.
Paper # US2012-98 
Date of Issue 2013-01-17 (US, EA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 US2012-98 EA2012-129

Conference Information
Committee US EA  
Conference Date 2013-01-24 - 2013-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Kambaikan, Doshisha Univ. 
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 2013-01-US-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Application of pulse compression technique to parametric difference frequency sound 
Sub Title (in English)  
Keyword(1) Nonlinear sound propagation  
Keyword(2) Parametric difference frequency sound  
Keyword(3) Chirp signal  
Keyword(4) Pulse compression  
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1st Author's Name Hideyuki Nomura  
1st Author's Affiliation The University of Electro-Communications (Univ. of Electro- Comm.)
2nd Author's Name Hideo Adachi  
2nd Author's Affiliation The University of Electro-Communications (Univ. of Electro- Comm.)
3rd Author's Name Tomoo Kamakura  
3rd Author's Affiliation The University of Electro-Communications (Univ. of Electro- Comm.)
4th Author's Name Gregory T. Clement  
4th Author's Affiliation Harvard Medical School (HMS)
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Speaker Author-1 
Date Time 2013-01-24 17:50:00 
Presentation Time 20 minutes 
Registration for US 
Paper # US2012-98, EA2012-129 
Volume (vol) vol.112 
Number (no) no.387(US), no.388(EA) 
Page pp.59-62 
#Pages
Date of Issue 2013-01-17 (US, EA) 


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