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Paper Abstract and Keywords
Presentation 2007-05-18 13:25
The system for detection and visualization of a radio source
Takafumi Nakabayashi, Hiroyuki Arai (Yokohama National Univ.) AP2007-25
Abstract (in Japanese) (See Japanese page) 
(in English) Unlicenced repeaters often cause interferences to current mobile communication systems due to its spurious radiation. To detect these radiation sources of interferences, the direction of arrival (DOA) estimation system has been intoroduced. The system points out the source location on the map by multiple measurements to increases its accuaracy. Its identification depends on looking by observer, which has some difficulties to find hidden repeaters and antennas. This report proposes the system detecting nearby target by DOA estimation system consisting of 4-element chip-antenna rectangular array and shows the estimated results graphically to make the detection of a radio source easily. We also demonstrate it by prototype system.
Keyword (in Japanese) (See Japanese page) 
(in English) DOA estimation / Array antenna / Small antenna / Visualization / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 35, AP2007-25, pp. 69-73, May 2007.
Paper # AP2007-25 
Date of Issue 2007-05-10 (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)
Download PDF AP2007-25

Conference Information
Committee AP  
Conference Date 2007-05-17 - 2007-05-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Kochi Univ. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) etc. 
Paper Information
Registration To AP 
Conference Code 2007-05-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The system for detection and visualization of a radio source 
Sub Title (in English)  
Keyword(1) DOA estimation  
Keyword(2) Array antenna  
Keyword(3) Small antenna  
Keyword(4) Visualization  
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1st Author's Name Takafumi Nakabayashi  
1st Author's Affiliation Yokohama National University (Yokohama National Univ.)
2nd Author's Name Hiroyuki Arai  
2nd Author's Affiliation Yokohama National University (Yokohama National Univ.)
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Speaker Author-2 
Date Time 2007-05-18 13:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2007-25 
Volume (vol) vol.107 
Number (no) no.35 
Page pp.69-73 
#Pages 5 
Date of Issue 2007-05-10 (AP) 

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