| Presentation | 2011-07-14 A novel phase shift compensation technique against path length variation of distributed array antennas for earth station onboard vessels Kouhei SUZAKI, Yoshinori SUZUKI, Kiyoshi KOBAYSHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a phase shift compensate technique against the path length variation of Distributed Array Antenna system (DAA). The DAA consists of multiple tracking antennas and an array controller. The array controller controls the phase of each antenna's transmitted signal appropriately to realize spatially in-phase combining at the satellite onboard antenna. However the path length between each tracking antenna and the satellite changes under vessel's motion and/or movement. The DAA estimates the satellite direction using a DOA (Direction of Arrival) algorithm, calculates optimum phase values and controls each excited phase. To verify our proposed compensation technique, we calculate antenna pattern. We confirm that the proposed technique offers good performance. In addition, we clarify that the proposed technique mitigates requirements on antenna tracking accuracy, we study each antenna tracking accuracy's mitigation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Distributed array antenna / Phase shift compensation / Mobile satellite communication system / ESV ((Earth Stations on board Vessels) |
| Paper # | SAT2011-9 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2011/7/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A novel phase shift compensation technique against path length variation of distributed array antennas for earth station onboard vessels |
| Sub Title (in English) | |
| Keyword(1) | Distributed array antenna |
| Keyword(2) | Phase shift compensation |
| Keyword(3) | Mobile satellite communication system |
| Keyword(4) | ESV ((Earth Stations on board Vessels) |
| 1st Author's Name | Kouhei SUZAKI |
| 1st Author's Affiliation | NTT Access Network Service System Laboratories, NTT Corporation() |
| 2nd Author's Name | Yoshinori SUZUKI |
| 2nd Author's Affiliation | NTT Access Network Service System Laboratories, NTT Corporation |
| 3rd Author's Name | Kiyoshi KOBAYSHI |
| 3rd Author's Affiliation | NTT Access Network Service System Laboratories, NTT Corporation |
| Date | 2011-07-14 |
| Paper # | SAT2011-9 |
| Volume (vol) | vol.111 |
| Number (no) | 129 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |