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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
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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 EA  
Conference Date 2009-07-17 - 2009-07-17 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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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 
Sub Title (in English)  
Keyword(1) microphone array  
Keyword(2) beamforming  
Keyword(3) linear semi-infinite programming method  
Keyword(4) optimization  
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1st Author's Name Shosuke Kitamura  
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 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
Date of Issue 2009-07-10 (EA) 


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