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Paper Abstract and Keywords
Presentation 2008-09-11 15:15
Develpment of an adaptive antenna by analogue phase control for ISDB
Yoshihiko Kuwahara, Hirofumi Takahashi, Kenji Ura (Shizuoka Univ.), Masaharu Tanai, Masayuki Takahashi (InterEnergy), Yutaka Imamura, Makoto Yamaguchi (Harada Industry) AP2008-86
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a smart antenna with a simple structure for ISDB receiving. The antenna hardware is the phased array with analogue phase shifters and a power combiner of the operational amplifier. This configuration realizes the phase diversity. By changing cost functions for adaptive beamforming, we use the same system as either the phase diversity antenna or the adaptive antenna. Because GI is used for calculation of the cost function and the system is used under fast fading environments, a rapid convergence algorithm is desired. We apply the symplex method for the optimization algorithm. We confirmed 3 to 5dB improvement of diversity gain in comparison with the selective diversity by the numerical simulation. And we developed a trial model, and were able to confirm adaptive beamforming and multipath cancellation in the field.
Keyword (in Japanese) (See Japanese page) 
(in English) Phased Array / ISDB / Diversity / Adaptive Antenna / Symplex Method / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 201, AP2008-86, pp. 67-72, Sept. 2008.
Paper # AP2008-86 
Date of Issue 2008-09-04 (AP) 
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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Conference Information
Committee AP  
Conference Date 2008-09-11 - 2008-09-12 
Place (in Japanese) (See Japanese page) 
Place (in English) National Defense Academy 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Etc. 
Paper Information
Registration To AP 
Conference Code 2008-09-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Develpment of an adaptive antenna by analogue phase control for ISDB 
Sub Title (in English)  
Keyword(1) Phased Array  
Keyword(2) ISDB  
Keyword(3) Diversity  
Keyword(4) Adaptive Antenna  
Keyword(5) Symplex Method  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yoshihiko Kuwahara  
1st Author's Affiliation Shizuoka University (Shizuoka Univ.)
2nd Author's Name Hirofumi Takahashi  
2nd Author's Affiliation Shizuoka University (Shizuoka Univ.)
3rd Author's Name Kenji Ura  
3rd Author's Affiliation Shizuoka University (Shizuoka Univ.)
4th Author's Name Masaharu Tanai  
4th Author's Affiliation InterEnergy Co.,Ltd. (InterEnergy)
5th Author's Name Masayuki Takahashi  
5th Author's Affiliation InterEnergy Co.,Ltd. (InterEnergy)
6th Author's Name Yutaka Imamura  
6th Author's Affiliation Harada Industry Co., Ltd. (Harada Industry)
7th Author's Name Makoto Yamaguchi  
7th Author's Affiliation Harada Industry Co., Ltd. (Harada Industry)
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Speaker Author-2 
Date Time 2008-09-11 15:15:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2008-86 
Volume (vol) vol.108 
Number (no) no.201 
Page pp.67-72 
#Pages 6 
Date of Issue 2008-09-04 (AP) 

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