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Paper Abstract and Keywords
Presentation 2015-09-04 09:30
Feasibility of low-frequency ultrasound imaging using compressed parametric sound source
Hideyuki Nomura, Hideo Adachi, Tomoo Kamakura (UEC) US2015-54
Abstract (in Japanese) (See Japanese page) 
(in English) The penetration depth of high-frequency ultrasound is limited, since the ultrasound at high frequency is much attenuated by medium viscosity, and the available range of high-frequency ultrasound image becomes shallow. In this study, to resolve this problem, we propose low-frequency ultrasound imaging using compressed parametric sound sources. In order to verify the proposed imaging method, imaging of a brass rod as a target using the compressed parametric sound in water was attempted. A ring type transducer with the center hole was used to transmit modulated primary ultrasounds, and a hydrophone placed within the hole of transmitter was used to receive chirp-modulated parametric sound echoes generated from the nonlinear interaction of the emitted ultrasounds. After receiving parametric sound echo signals, a pulse compression technique was applied to the signals in order to improve the range resolution and signal-to-noise ratio. The obtained B mode images reveal the feasibility of low-frequency ultrasound imaging using compressed parametric sounds.
Keyword (in Japanese) (See Japanese page) 
(in English) Acoustic imaging / Nonlinear sound propagation / Parametric sound source / Chirp signal / Pulse compression / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 207, US2015-54, pp. 47-50, Sept. 2015.
Paper # US2015-54 
Date of Issue 2015-08-27 (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 2015-09-03 - 2015-09-04 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To US 
Conference Code 2015-09-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Feasibility of low-frequency ultrasound imaging using compressed parametric sound source 
Sub Title (in English)  
Keyword(1) Acoustic imaging  
Keyword(2) Nonlinear sound propagation  
Keyword(3) Parametric sound source  
Keyword(4) Chirp signal  
Keyword(5) Pulse compression  
Keyword(6)  
Keyword(7)  
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1st Author's Name Hideyuki Nomura  
1st Author's Affiliation University of Electronic Communications (UEC)
2nd Author's Name Hideo Adachi  
2nd Author's Affiliation University of Electronic Communications (UEC)
3rd Author's Name Tomoo Kamakura  
3rd Author's Affiliation University of Electronic Communications (UEC)
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Speaker Author-1 
Date Time 2015-09-04 09:30:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2015-54 
Volume (vol) vol.115 
Number (no) no.207 
Page pp.47-50 
#Pages 4 
Date of Issue 2015-08-27 (US) 

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