Paper Abstract and Keywords |
Presentation |
2018-03-12 14:35
An Accelerated Adjustment Method for Directivity Pattern of Microphone Array Based on KKT Condition Takeshi Isomoto, Kenji Suyama (Tokyo Denki Univ.) CAS2017-142 CS2017-96 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
For a high S/N sound capture, it is effective to form a directivity pattern of a microphone array.
However, it is necessary to adjust the directivity pattern with time for moving sound sources.
In this study, an accelerated redesign method using the designed directivity pattern is proposed for the moving sound sources.
In the redesign, null directions for interference sources and a beam direction for a target sound source are adjusted based on KKT (Karush-Kuhn-Tucker) condition.
Several redesign examples are shown to present the effectiveness of the proposed method. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
microphone array / directivity pattern / optimization / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 503, CAS2017-142, pp. 53-58, March 2018. |
Paper # |
CAS2017-142 |
Date of Issue |
2018-03-05 (CAS, CS) |
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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CAS2017-142 CS2017-96 |
Conference Information |
Committee |
CS CAS |
Conference Date |
2018-03-12 - 2018-03-13 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Nishijin Plaza, Kyushu University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Network processor, Signal processing and circuits for communications, Wireless LAN / PAN, etc. |
Paper Information |
Registration To |
CAS |
Conference Code |
2018-03-CS-CAS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
An Accelerated Adjustment Method for Directivity Pattern of Microphone Array Based on KKT Condition |
Sub Title (in English) |
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microphone array |
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directivity pattern |
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optimization |
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1st Author's Name |
Takeshi Isomoto |
1st Author's Affiliation |
Tokyo Denki University (Tokyo Denki Univ.) |
2nd Author's Name |
Kenji Suyama |
2nd Author's Affiliation |
Tokyo Denki University (Tokyo Denki Univ.) |
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Speaker |
Author-1 |
Date Time |
2018-03-12 14:35:00 |
Presentation Time |
25 minutes |
Registration for |
CAS |
Paper # |
CAS2017-142, CS2017-96 |
Volume (vol) |
vol.117 |
Number (no) |
no.503(CAS), no.504(CS) |
Page |
pp.53-58 |
#Pages |
6 |
Date of Issue |
2018-03-05 (CAS, CS) |
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