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Paper Abstract and Keywords
Presentation 2010-03-04 10:50
Direction Finding Performances in UWB Short-Range Phase-Comparison Monopulse Radars
Hironori Enkouji, Takehiko Nishide, Natsuki Hashimoto, Naohiko Iwakiri, Takehiko Kobayashi (Tokyo Denki Univ.) IT2009-85 ISEC2009-93 WBS2009-64
Abstract (in Japanese) (See Japanese page) 
(in English) Ultra wideband (UWB) vehicular radars have attracted attention from a viewpoint of reducing traffic accident victims. This report presents experimental and numerical evaluation of direction finding capabilities of a phase-comparison monopulse UWB radar. Direction to a target (a trihedral corner reflector) was measured using a Ka-band UWB pulse radar equipped with a two-element monopulse systems in a radio anechoic chamber. The delta-over-sigma (DOS) patterns indicating the target direction were obtained with two methods: (a) employing a microwave hybrid coupler connecting to the two antenna ports to generate differential (delta) and summation (sigma) signals in the radio frequency region, and (b) directly detecting the two antenna outputs with use of orthogonal demodulators and calculating the delta and the sigma in the baseband region. Imperfectness of the microwave hybrid coupler and other factors substantially influenced the accuracy of the resulting DOS patterns, in particular with the method (a). The DOS patterns were analyzed and calculated to dissect the impacts of the error factors upon the direction finding performances.
Keyword (in Japanese) (See Japanese page) 
(in English) ultra wideband / ultra wideband radar / phase-comparison monopulse / direction finding / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 446, WBS2009-64, pp. 93-98, March 2010.
Paper # WBS2009-64 
Date of Issue 2010-02-25 (IT, ISEC, WBS) 
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 IT2009-85 ISEC2009-93 WBS2009-64

Conference Information
Committee IT ISEC WBS  
Conference Date 2010-03-04 - 2010-03-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagano-Engineering Campus, Shinshu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WBS 
Conference Code 2010-03-IT-ISEC-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Direction Finding Performances in UWB Short-Range Phase-Comparison Monopulse Radars 
Sub Title (in English)  
Keyword(1) ultra wideband  
Keyword(2) ultra wideband radar  
Keyword(3) phase-comparison monopulse  
Keyword(4) direction finding  
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1st Author's Name Hironori Enkouji  
1st Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
2nd Author's Name Takehiko Nishide  
2nd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
3rd Author's Name Natsuki Hashimoto  
3rd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
4th Author's Name Naohiko Iwakiri  
4th Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
5th Author's Name Takehiko Kobayashi  
5th Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
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Speaker Author-1 
Date Time 2010-03-04 10:50:00 
Presentation Time 25 minutes 
Registration for WBS 
Paper # IT2009-85, ISEC2009-93, WBS2009-64 
Volume (vol) vol.109 
Number (no) no.444(IT), no.445(ISEC), no.446(WBS) 
Page pp.93-98 
#Pages 6 
Date of Issue 2010-02-25 (IT, ISEC, WBS) 

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