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| Presentation | 2008-05-29 10:30 Ambiguity in Exact Unconditional ML Criterion for DOA Estimation Haihua Chen, Masakiyo Suzuki (Kitami Inst. of Tech.)  EA2008-6 SIP2008-15 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper addresses the issue of ambiguity of the solution in Unconditional Maximum Likelihood (UML) estimation of Directions-of-Arrival (DOA). At first, we show the brief description of the definition of the exact UML estimation. By relaxing the condition to be satisfied by unknown parameters, the solution of the UML estimation can be formulated. We show that it corresponds to the extension of the solution space for the exact UML estimation. We call it extended UML estimation. Next, we show the followings by simulations. (1) The solution of the extended UML estimation is ambiguous. (2) The solution of exact UML estimation is unique when the observation condition is relatively good, but looses its uniqueness in the threshold region or bad observation condition. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | DOA finding / Stochastic signal model / ML / Ambiguity of solution / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 70, SIP2008-15, pp. 1-6, May 2008. | |
| Paper # | SIP2008-15 | |
| Date of Issue | 2008-05-22 (EA, SIP) | |
| 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 | EA2008-6 SIP2008-15 |
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| Conference Information | |
| Committee | SIP EA |
| Conference Date | 2008-05-29 - 2008-05-30 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kansai Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SIP |
| Conference Code | 2008-05-SIP-EA |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Ambiguity in Exact Unconditional ML Criterion for DOA Estimation |
| Sub Title (in English) | |
| Keyword(1) | DOA finding |
| Keyword(2) | Stochastic signal model |
| Keyword(3) | ML |
| Keyword(4) | Ambiguity of solution |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Haihua Chen |
| 1st Author's Affiliation | Kitami Institute of Technology (Kitami Inst. of Tech.) |
| 2nd Author's Name | Masakiyo Suzuki |
| 2nd Author's Affiliation | Kitami Institute of Technology (Kitami Inst. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2008-05-29 10:30:00 |
| Presentation Time | 25 minutes |
| Registration for | SIP |
| Paper # | EA2008-6, SIP2008-15 |
| Volume (vol) | vol.108 |
| Number (no) | no.68(EA), no.70(SIP) |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2008-05-22 (EA, SIP) |
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