| Presentation | 2009-08-03 A Study on Space Diversity for Direction of Arrival Estimation Method Seiji OHMORI, Daisei UCHIDA, Takafumi FUJITA, Yosuke FUJINO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Many high-resolution direction-of-arrival (DoA) estimation methods using array antenna have been proposed and they have been used for antenna patten control or positioning estimation in wireless communication systems. These DoA estimation methods are based on the assumption of coming wave to be a plane wave. However, this assumption is not approved in flat fading depression because phase differences among array antenna elements are independent on the path differences in such a environment. Therefore, DoA estimation accuracy degrades in a flat fading environment. To solve this problem, we propose a newly DoA estimation methods. It has two array antennas that are placed away from each other and employs space diversity for DoA estimation. We evaluate DoA estimation performances of the proposed method by computer simulations and field tests. It results that the proposed method can improve 17% DoA estimation accuracy compared with the conventional ones in a flat fading environment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DoA estimation / Array antenna / Space diversity |
| Paper # | RCS2009-84 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2009/7/27(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Space Diversity for Direction of Arrival Estimation Method |
| Sub Title (in English) | |
| Keyword(1) | DoA estimation |
| Keyword(2) | Array antenna |
| Keyword(3) | Space diversity |
| 1st Author's Name | Seiji OHMORI |
| 1st Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation() |
| 2nd Author's Name | Daisei UCHIDA |
| 2nd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 3rd Author's Name | Takafumi FUJITA |
| 3rd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 4th Author's Name | Yosuke FUJINO |
| 4th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| Date | 2009-08-03 |
| Paper # | RCS2009-84 |
| Volume (vol) | vol.109 |
| Number (no) | 164 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |