| Project/Area Number |
23510216
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | Japan Coast Guard Academy (Center for Research in International Marine Policy) |
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Principal Investigator |
YAMADA TATSUTO 海上保安大学校(国際海洋政策研究センター), その他部局等, 教授 (90559220)
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| Co-Investigator(Kenkyū-buntansha) |
MIZUI Shinji 広島高等商船専門学校, 教授 (50249843)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 安全情報 / 海難防止 / 船舶 / レーダ / 小型FRP船 / RCS / 安全 / 海難 |
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| Research Abstract |
We have developed a system for sampling the radar echo signals by A/D conversion of the receiving signals from ship-board radar. Using this system, we analyzed characteristics of radar signal intensity and the two-dimensional distribution from a small FRP boat which the radar reflector is installed or not in the situation of two aspect angles, which are 90(deg.) and 0(deg.). The major results are as follows. (1)In the situation with no reflector, the RCS of bow-aspect is less than half that of abeam-aspect. (2)By installing the radar reflector, the RCS increases more than twice as the amount as no reflector. (3)The echo paint characteristics which are size and shape are independent of aspect angle of boat. (4)Echo size (the bearing size and the range size) of the situation with reflector are bigger than that of the situation with no reflector.
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