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Paper Abstract and Keywords
Presentation 2021-01-28 13:50
A Study on the optimum incident order of wave sources in the T-FBTS method considering the noise
Kai Yoshigi, Toshiyuki Tanaka, Moriyama Toshifumi, Fujiyoshi Kazuki (Nagasaki Univ) SANE2020-39
Abstract (in Japanese) (See Japanese page) 
(in English) The development of non-destructive inspection and non-invasive diagnosis devices using electromagnetic waves is desired in various industrial fields. We are investigating the reconstruction of the electric constant distribution using the FBTS method, which is one of the methods for solving the electromagnetic wave inverse scattering problem. The FBTS method is a method for estimating the medium constant of an object in an exploration area by irradiating electromagnetic wave pulses on the area and observing the scattering field. Since the FBTS method can reconstruct the electric constants, it can identify not only the presence or absence of an object and its shape, but also the type of the object. However, the disadvantage of the FBTS method is that it requires an enormous amount of computation time. In order to reduce the estimation time, the time-shift FBTS method, in which the incident current source is time-shifted and applied continuously, was proposed. It is also known that the reconstruction accuracy changes when the incidence order of the pulses of the transmitting antennas arranged in a circle is changed. In this study, we discuss the incidence order of the wave sources to improve the reconstruction accuracy in the T-FBTS method. The noise tolerance of the method is also clarified.
Keyword (in Japanese) (See Japanese page) 
(in English) Electromagnetic Waves / Time-Shift / FBTS / Time Domain / Inverse Problem / Incident Order / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 350, SANE2020-39, pp. 10-15, Jan. 2021.
Paper # SANE2020-39 
Date of Issue 2021-01-21 (SANE) 
ISSN Online edition: ISSN 2432-6380
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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 SANE  
Conference Date 2021-01-28 - 2021-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Positioning, navigation, Radar and general 
Paper Information
Registration To SANE 
Conference Code 2021-01-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on the optimum incident order of wave sources in the T-FBTS method considering the noise 
Sub Title (in English)  
Keyword(1) Electromagnetic Waves  
Keyword(2) Time-Shift  
Keyword(3) FBTS  
Keyword(4) Time Domain  
Keyword(5) Inverse Problem  
Keyword(6) Incident Order  
Keyword(7)  
Keyword(8)  
1st Author's Name Kai Yoshigi  
1st Author's Affiliation Nagasaki University (Nagasaki Univ)
2nd Author's Name Toshiyuki Tanaka  
2nd Author's Affiliation Nagasaki University (Nagasaki Univ)
3rd Author's Name Moriyama Toshifumi  
3rd Author's Affiliation Nagasaki University (Nagasaki Univ)
4th Author's Name Fujiyoshi Kazuki  
4th Author's Affiliation Nagasaki University (Nagasaki Univ)
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Speaker Author-1 
Date Time 2021-01-28 13:50:00 
Presentation Time 25 minutes 
Registration for SANE 
Paper # SANE2020-39 
Volume (vol) vol.120 
Number (no) no.350 
Page pp.10-15 
#Pages
Date of Issue 2021-01-21 (SANE) 


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