Presentation 2012-10-24
Simulations for effects on other communication antennas by scatterd waves from a ship body for maritime satellite communications(Satellite Communication Technologies)
Takahiro AOYAGI, Kouhei SUZAKI, Yoshinori SUZUKI, Takashi HIROSE, Takatoshi SUGIYAMA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In maritime mobile satellite communications, receiving satellite signal level varies due to direction and motion of a ship. To compensate fluctuation of antenna directions, a satellite following system is used for a parabolic antenna on a ship. When a structure of the ship crosses the line between the antenna and the communicating satellite, the antenna stops transmitting for the satellite. Directivity of a parabolic antenna has certain spread. Thus it is needed to make some clearance between structures of the ship and antenna beam. It is important to estimate how structures of a ship affect on restriction of antenna direction and how much clearance actually needed for such situations. However, precise clearances between antenna beam and structures of a ship are not yet studied. In this report, the following two things are considered. Firstly when the beam of the transmitting antenna is towards a satellite, received levels by other antennas on the ship are calculated by numerical simulation. Secondary, received levels by other satellites are estimated by calculating a diffracted wave from square pillar which simulates a structure of a ship.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Satellite communications / maritime / interference / diffraction / signal level
Paper # SAT2012-40
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Conference Information
Committee SAT
Conference Date 2012/10/17(1days)
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Registration To Satellite Telecommunications (SAT)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Simulations for effects on other communication antennas by scatterd waves from a ship body for maritime satellite communications(Satellite Communication Technologies)
Sub Title (in English)
Keyword(1) Satellite communications
Keyword(2) maritime
Keyword(3) interference
Keyword(4) diffraction
Keyword(5) signal level
1st Author's Name Takahiro AOYAGI
1st Author's Affiliation Graduate School of Decision Science and Technology, Tokyo Institute of Technology()
2nd Author's Name Kouhei SUZAKI
2nd Author's Affiliation NTT Access Network Service Systems Laboratories, NTT Corporation
3rd Author's Name Yoshinori SUZUKI
3rd Author's Affiliation NTT Access Network Service Systems Laboratories, NTT Corporation
4th Author's Name Takashi HIROSE
4th Author's Affiliation NTT Access Network Service Systems Laboratories, NTT Corporation
5th Author's Name Takatoshi SUGIYAMA
5th Author's Affiliation NTT Access Network Service Systems Laboratories, NTT Corporation
Date 2012-10-24
Paper # SAT2012-40
Volume (vol) vol.112
Number (no) 255
Page pp.pp.-
#Pages 6
Date of Issue