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| Presentation | 2009-10-15 11:55 A Study on a Receiving Array Antenna for Eigenvector-Based Security System Using Radio Waves Shun Kawakami, Kazuki Okane, Tomoaki Ohtsuki (Keio Univ.)  RCS2009-113 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We proposed the indoor event detection system with signal subspace spanned by eigenvector for office or home security.The system monitors a whole room or home with only a pair of transmitter and receiver. The receiver uses an antenna array. We get not received signal strength (RSS) that is susceptible to noise but signal subspace spanned by eigenvector that is inherent to its environment. When an event (e.g. a person intrudes into a house) occurs, the propagation environment changes, and thus the signal subspace changes. Monitoring this change, we detect an event. The change of eigenvector means also whether a person is in motion or remains motionless. We have been using dipole antennas arranged linearly or circularly as the receiver, however, they are not necessarily arranged regularly to obtain eigenvector. In this report, we use patch antennas set up on a box as the receiver, and report the experiment results for the detection of intruder, baggage stolen and the effect of the outside the room. In the result, we can detect some events using the smaller receiver composed of array antennas arranged arbitrarily. Moreover, we study the detection performance of the eigenvalue-based security system and show that this system is useful for various applications by using both the eigenvector and the eigenvalue as the application demands. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | event detection / security / array antenna / patch antenna / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 229, RCS2009-113, pp. 19-24, Oct. 2009. | |
| Paper # | RCS2009-113 | |
| Date of Issue | 2009-10-08 (RCS) | |
| 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 | RCS2009-113 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2009-10-15 - 2009-10-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | ATR |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal Processing and Transceiver Technologies on High-speed Wireless Packet Communication, Wireless Communication Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2009-10-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on a Receiving Array Antenna for Eigenvector-Based Security System Using Radio Waves |
| Sub Title (in English) | |
| Keyword(1) | event detection |
| Keyword(2) | security |
| Keyword(3) | array antenna |
| Keyword(4) | patch antenna |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Shun Kawakami |
| 1st Author's Affiliation | Keio University (Keio Univ.) |
| 2nd Author's Name | Kazuki Okane |
| 2nd Author's Affiliation | Keio University (Keio Univ.) |
| 3rd Author's Name | Tomoaki Ohtsuki |
| 3rd Author's Affiliation | Keio University (Keio Univ.) |
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| Speaker | 1 |
| Date Time | 2009-10-15 11:55:00 |
| Presentation Time | 25 |
| Registration for | RCS |
| Paper # | IEICE-RCS2009-113 |
| Volume (vol) | IEICE-109 |
| Number (no) | no.229 |
| Page | pp.19-24 |
| #Pages | IEICE-6 |
| Date of Issue | IEICE-RCS-2009-10-08 |
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