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| 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 |
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| 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 |
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| 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 |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 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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