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| Presentation | 2008-06-12 13:30 Irreducible Form of AM Criterion for Unconditional ML Estimation of DOA Haihua Chen, Masakiyo Suzuki (Kitami Inst. of Tech.)  SIS2008-7 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper addresses the issue of numerical unstability of Alternating Minimization (AM) criterion in Unconditional Maximum Likelihood (UML) estimation of Directions-of-Arrival (DOA). First we show the definition of the exact UML estimation and brief description of the AM method to solve the exact UML estimation. The AM algorithm becomes numerical unstable, when more than one direction parameters are going to have an identical value. It is caused by the fact that the UML criterion with duplicated directions is indefinite. This paper derives efficient AM (EAM) algorithm by dividing the UML criterion into two components. One depends on a signal variable parameter and the other does not. Then applying the condition of the uniform linear array of sensors, an irreducible form of the criterion of EAM algorithm is derived. We call it Irreducible AM (IAM) algorithm. Finally, simulation results are shown to demonstrate that IAM algorithm is numerical stable and efficient. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | DOA finding / Stochastic signal model / ML / AM / Numerical unstability / Irreducible from / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 85, SIS2008-7, pp. 35-40, June 2008. | |
| Paper # | SIS2008-7 | |
| Date of Issue | 2008-06-05 (SIS) | |
| 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 | SIS2008-7 |
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| Conference Information | |
| Committee | SIS |
| Conference Date | 2008-06-12 - 2008-06-13 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SIS |
| Conference Code | 2008-06-SIS |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Irreducible Form of AM Criterion for Unconditional ML Estimation of DOA |
| Sub Title (in English) | |
| Keyword(1) | DOA finding |
| Keyword(2) | Stochastic signal model |
| Keyword(3) | ML |
| Keyword(4) | AM |
| Keyword(5) | Numerical unstability |
| Keyword(6) | Irreducible from |
| Keyword(7) | |
| 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 | 2008-06-12 13:30:00 |
| Presentation Time | 25 minutes |
| Registration for | SIS |
| Paper # | SIS2008-7 |
| Volume (vol) | vol.108 |
| Number (no) | no.85 |
| Page | pp.35-40 |
| #Pages | 6 |
| Date of Issue | 2008-06-05 (SIS) |
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