Development of the compensation technique of the link quality on the next-generation satellite communications and broadcast
| Project/Area Number |
20560359
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
FUJISAKI Kiyotaka Kyushu University, システム情報科学研究院, 准教授 (20253487)
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| Co-Investigator(Renkei-kenkyūsha) |
TATEIBA Mitsuo 有明工業高等専門学校, 校長 (40037924)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 衛星通信 / 衛星放送 / 情報通信 / 降雨減衰補償 / 電波伝搬 / ビットエラー / 信号減衰 / 無線通信 |
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| Research Abstract |
With the goal of the stable use of the next-generation high speed satellite communications and broadcast system, we showed the following results for multi-beam satellites. (1) On the basis of the prediction of the rain effect from weather prediction data in the each beam area, the measures to control transmission power are effective. (2) The rain prediction in a shorter time is necessary to achieve an effective compensation. (3) When strong rain falls in a short time, as well as the control of the transmission power, the measures such as changes of an encoding rate and the transmission speed are necessary. In addition, we evaluated the influence of the atmosphere on the link and showed that the influence of the atmospheric fluctuation could not ignore when antenna size became large.
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Report
(4 results)
Research Products
(21 results)
