Presentation 2018-07-20
Propagation measurement of seasonal variation of shadowing by trees in Ka-band mobile satellite communication
Tomoshige Kan, Byeongpyo Jeong, Hajime Susukita, Kazuyoshi Kawasaki, Takashi Takahashi, Morio Toyoshima,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) National Institute of Information and Communications Technology (NICT) has developed a small-vehicle stations equipped with the antenna system for automatic tracking for the Wideband InterNetworking engineering test and Demonstration Satellite "KIZUNA" (WINDS), it has become possible to build a satellite link while moving. We have already reported radio wave propagation measurements under a high speed mobile environment in a wide area. There is a large impact on the satellite communication by shadowing in satellite communication using directional antenna in Ka band with high rectilinearity in previous experiments. It is estimated that variation of the influence of shadowing depending on the season, as the condition of leaves depends on the four seasons for trees. Therefore, we measure the seasonal difference by measuring the attenuation of the received signal from the satellite throughout the year in several kinds of trees. We report the results of the variation of shadowing by trees from March to May.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Satellite Communications / Propagation / Ka band / Mobile earth station for WINDS / Influence of trees / Seasonal variation
Paper # SANE2018-32,SAT2018-24
Date of Issue 2018-07-11 (SANE, SAT)

Conference Information
Committee AP / SANE / SAT
Conference Date 2018/7/18(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Hokkaido Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Remote sensing, Sattelite Communication, Radio propagation, Antennas and Propagation
Chair Jiro Hirokawa(Tokyo Tech.) / Sonosuke Fukushima(ENRI) / Hiroyuki Tsuji(NICT)
Vice Chair Ryo Yamaguchi(SoftBank) / Toshifumi Moriyama(Nagasaki Univ.) / Akitsugu Nadai(NICT) / Hisashi Sujikai(NHK) / Fumihiro Yamashita(NTT)
Secretary Ryo Yamaguchi(Saitama Univ.) / Toshifumi Moriyama(Mitsubishi Electric) / Akitsugu Nadai(ENRI) / Hisashi Sujikai(Univ. of Electro-Comm.) / Fumihiro Yamashita(NTT)
Assistant Michitaka Ameya(AIST) / Ryo Natsuaki(Univ. of Tokyo) / Masato Yamanashi(Mitsubishi Space Software) / Takeshi Amishima(Mitsubishi Electric)

Paper Information
Registration To Technical Committee on Antennas and Propagation / Technical Committee on Space, Aeronautical and Navigational Electronics / Technical Committee on Satellite Telecommunications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Propagation measurement of seasonal variation of shadowing by trees in Ka-band mobile satellite communication
Sub Title (in English)
Keyword(1) Satellite Communications
Keyword(2) Propagation
Keyword(3) Ka band
Keyword(4) Mobile earth station for WINDS
Keyword(5) Influence of trees
Keyword(6) Seasonal variation
1st Author's Name Tomoshige Kan
1st Author's Affiliation National Institute of Information and Communications Technology(NICT)
2nd Author's Name Byeongpyo Jeong
2nd Author's Affiliation National Institute of Information and Communications Technology(NICT)
3rd Author's Name Hajime Susukita
3rd Author's Affiliation National Institute of Information and Communications Technology(NICT)
4th Author's Name Kazuyoshi Kawasaki
4th Author's Affiliation National Institute of Information and Communications Technology(NICT)
5th Author's Name Takashi Takahashi
5th Author's Affiliation National Institute of Information and Communications Technology(NICT)
6th Author's Name Morio Toyoshima
6th Author's Affiliation National Institute of Information and Communications Technology(NICT)
Date 2018-07-20
Paper # SANE2018-32,SAT2018-24
Volume (vol) vol.118
Number (no) SANE-135,SAT-136
Page pp.pp.59-63(SANE), pp.77-81(SAT),
#Pages 5
Date of Issue 2018-07-11 (SANE, SAT)