Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2025-06-20 14:55
Three-dimensional finite difference-time domain simulation of moving point source arrays
Kei Inoue, Takao Tsuchiya (Doshisha Univ.) US2025-11
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, the sound field radiated from moving point source arrays is theoretically derived and implemented in a three-dimensional finite-difference time-domain (FDTD) method. The directivity of the moving point source arrays is theoretically obtained by considering the phase differences between each source in the three-dimensional sound field. The moving point source arrays are then implemented in the three-dimensional FDTD method, then numerical simulations were conducted. It was confirmed that the FDTD method can compute the directivity of the moving point source arrays with an error of only a few percent at frequencies below 1,kHz for source velocities up to Mach number of 0.4. Furthermore, it was shown that the influence of source velocity on directivity increases with increasing velocity. In particular, the influence of velocity on directivity becomes more pronounced as the number of point sources increases. These results confirm that the proposed method can be effectively applied to directivity analysis of moving point source arrays with good accuracy.
Keyword (in Japanese) (See Japanese page) 
(in English) moving point source array / directivity / three-dimensional FDTD method / / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 80, US2025-11, pp. 19-24, June 2025.
Paper # US2025-11 
Date of Issue 2025-06-13 (US) 
ISSN 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 US2025-11

Conference Information
Committee US  
Conference Date 2025-06-20 - 2025-06-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Doshisha University Muromachi Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ultrasound in medicine, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2025-06-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Three-dimensional finite difference-time domain simulation of moving point source arrays 
Sub Title (in English)  
Keyword(1) moving point source array  
Keyword(2) directivity  
Keyword(3) three-dimensional FDTD method  
Keyword(4)  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kei Inoue  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Takao Tsuchiya  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2025-06-20 14:55:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2025-11 
Volume (vol) vol.125 
Number (no) no.80 
Page pp.19-24 
#Pages 6 
Date of Issue 2025-06-13 (US) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan