Project/Area Number |
25420402
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Measurement engineering
|
Research Institution | Kanazawa University |
Principal Investigator |
Goto Yoshitaka 金沢大学, 電子情報学系, 准教授 (30361976)
|
Co-Investigator(Kenkyū-buntansha) |
YOSHIYA Kasahara 金沢大学, 総合メディア基盤センター, 教授 (50243051)
熊本 篤志 東北大学, 理学(系)研究科(研究院), 准教授 (00302076)
|
Co-Investigator(Renkei-kenkyūsha) |
ATSUSHI Kumamoto 東北大学, 理学(系)研究科(研究院), 准教授 (00302076)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
Keywords | 惑星探査 / かぐや衛星 / 自然電波 / 月面誘電率 / オーロラキロメトリック放射 / オーロラキロメートル放射 |
Outline of Final Research Achievements |
Lunar surface permittivity is an important parameter for understanding the Moon and has been observed by many radar experiments from spacecraft. In these observations, frequencies of radio transmissions are generally high because of instrumental limitations. One of the interesting topics about the lunar surface permittivity is its frequency response in lower bands which is related to the moisture content. The Japanese lunar orbiter Kaguya carried out radar observations of the lunar subsurface structures and also passive observations of natural waves in super low frequency. In this study, we developed an estimation method of lunar surface permittivity for low frequencies by using the natural wave data of Kaguya. We also created a global map of lunar surface permittivity for high frequencies from the radar observations.
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