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| Presentation | 2014-08-29 15:05 Effect of Khatri-Rao Virtual Array for 2D Surface Current Estimation Using Ocean Surface Current Radar Takuya Ryukawa, Hiroyoshi Yamada, Yoshio Yamaguchi (Niigata Univ.), Keizo Hirano, Hiroyuki Ito (Nagano JRC)  SANE2014-62 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Ocean surface current radar is a Doppler radar to observe oceanographic information using the Bragg scattering resonance mechanism. Distance and Doppler frequency of ocean surface current can be estimated by the FMICW (Frequency Modulated Interrupted Continuous Wave) radar. In addition, angular distribution can be resolved by digital beam forming (DBF) method. In this paper, we consider applying the Khatri-Rao (KR) product transform to the ocean surface current radar. The KR product is signal processing technique that can improve angular resolution without changing the physical aperture length of the array antenna. It has been reported that the angular resolution enhancement enables us to remove clutter in adjacent angles and Doppler frequency estimation results will be improved. In this paper, we apply the KR product array to actual experimental data set of the radar, and estimate surface current velocity. Then, we propose that the improvement of angular resolution and Doppler frequency estimation accuracy affect the result of surface current velocity estimation. Key words Ocean Surface Current Radar, DOA estimation, Khatri-Rao product, Resolution Improvement, Suface currant velocity estimation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Ocean Surface Current Radar / DOA estimation / Khatri-Rao product / Resolution Improvement / Surface Current Velocity / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 194, SANE2014-62, pp. 83-88, Aug. 2014. | |
| Paper # | SANE2014-62 | |
| Date of Issue | 2014-08-21 (SANE) | |
| 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 | SANE2014-62 |
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| Conference Information | |
| Committee | AP SANE |
| Conference Date | 2014-08-28 - 2014-08-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Niigata University Satellite campus |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radar, environmental measurement and general |
| Paper Information | |
| Registration To | SANE |
| Conference Code | 2014-08-AP-SANE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of Khatri-Rao Virtual Array for 2D Surface Current Estimation Using Ocean Surface Current Radar |
| Sub Title (in English) | |
| Keyword(1) | Ocean Surface Current Radar |
| Keyword(2) | DOA estimation |
| Keyword(3) | Khatri-Rao product |
| Keyword(4) | Resolution Improvement |
| Keyword(5) | Surface Current Velocity |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takuya Ryukawa |
| 1st Author's Affiliation | Niigata University (Niigata Univ.) |
| 2nd Author's Name | Hiroyoshi Yamada |
| 2nd Author's Affiliation | Niigata University (Niigata Univ.) |
| 3rd Author's Name | Yoshio Yamaguchi |
| 3rd Author's Affiliation | Niigata University (Niigata Univ.) |
| 4th Author's Name | Keizo Hirano |
| 4th Author's Affiliation | Nagano Japan Radio Co., Ltd. (Nagano JRC) |
| 5th Author's Name | Hiroyuki Ito |
| 5th Author's Affiliation | Nagano Japan Radio Co., Ltd. (Nagano JRC) |
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| Speaker | Author-1 |
| Date Time | 2014-08-29 15:05:00 |
| Presentation Time | 25 minutes |
| Registration for | SANE |
| Paper # | SANE2014-62 |
| Volume (vol) | vol.114 |
| Number (no) | no.194 |
| Page | pp.83-88 |
| #Pages | 6 |
| Date of Issue | 2014-08-21 (SANE) |
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