Paper Abstract and Keywords |
Presentation |
2009-07-17 15:45
Optimal Directivity Design of Microphone Array with Directional Constraints Shosuke Kitamura, Kenji Suyama (Tokyo Denki Univ.) EA2009-41 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we propose a design method for optimal directivity pattern of a microphone array.In many situations, the beamforming using the microphone array is considered for the narrow band signal model. Therefore, a problem of designing the directivity pattern is described as the complex optimization problem, which is one of the nonlinear programming problems and is difficult to assure the optimality of solution obtained. Furthermore, in a lot of applications, it is often desired to incorporate several kinds of constraints, including the allocation of some nulls and the specification of gain in some interval of directions.In this study, we formulate such the problem including the constraints as a semi-infinite programming problem and solve by using the three phase method. Several design examples are shown to present the effectiveness of the proposed method. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
microphone array / beamforming / linear semi-infinite programming method / optimization / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 109, no. 136, EA2009-41, pp. 25-30, July 2009. |
Paper # |
EA2009-41 |
Date of Issue |
2009-07-10 (EA) |
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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EA2009-41 |
Conference Information |
Committee |
EA |
Conference Date |
2009-07-17 - 2009-07-17 |
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(See Japanese page) |
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Paper Information |
Registration To |
EA |
Conference Code |
2009-07-EA |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Optimal Directivity Design of Microphone Array with Directional Constraints |
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microphone array |
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beamforming |
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linear semi-infinite programming method |
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optimization |
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1st Author's Name |
Shosuke Kitamura |
1st Author's Affiliation |
Tokyo Denki University (Tokyo Denki Univ.) |
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Kenji Suyama |
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Tokyo Denki University (Tokyo Denki Univ.) |
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Speaker |
Author-1 |
Date Time |
2009-07-17 15:45:00 |
Presentation Time |
30 minutes |
Registration for |
EA |
Paper # |
EA2009-41 |
Volume (vol) |
vol.109 |
Number (no) |
no.136 |
Page |
pp.25-30 |
#Pages |
6 |
Date of Issue |
2009-07-10 (EA) |
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