Presentation 2016-05-20
A Study on Relationship between Rain Front and Rain Area Velocities and Rain Attenuation Observation at 3 Locations in Ku-Band Satellite Communications Links
Naoki Kubota, Yasuyuki Maekawa, Yoshiaki Shibagaki,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Speeds and directions of the motion of rain areas that cause the attenuation of Ku-band satellite communications links are estimated from the broadcast satellite (BS) signal levels simultaneously obtained at Osaka Electro-Communication University (Neyagawa, Osaka), Research Institute of Sustainable Humanosphere of Kyoto University (Uji, Kyoto), and Shigaraki MU Observatory (Koga, Shiga). The speeds and directions of rain area motion are compared with those of rain fronts obtained from image analyses of real time weather charts published in the website by Japan Meteorological Agency (JMA) for 112 rainfall events during the years of 2007-2012. In the case of warm and cold fronts, the speeds and directions of the rain area motions estimated from the BS signal observations are comparatively in good agreement with those of rain fronts obtained from the real time weather charts of the website. In the case of stationary fronts, however, the speeds of the rain area motions by the BS signals are much faster than the speeds of rain front motions by the real time weather charts, while the directions of the rain area motions are still in fairly good agreement with the directions of the rain front motions by the website. Also, the rain area motions are directly analyzed from real time images of rain clouds published in the website by JMA. Although the examples are limited to 15 events obtained from 2011 to 2012, they similarly show high correlation in the moving directions.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Satellite communications / Rain attenuation / Ku band / Rain area motion / Rain fronts / Real time weather charts
Paper # SAT2016-10
Date of Issue 2016-05-12 (SAT)

Conference Information
Committee SAT / WBS
Conference Date 2016/5/19(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Nagoya Institute of Technology
Topics (in Japanese) (See Japanese page)
Topics (in English) Coding, Modulation, Signal Processing, etc.
Chair Morio Toyoshima(NICT) / Hiromasa Habuchi(Ibaraki Univ.)
Vice Chair Takatoshi Sugiyama(Kogakuin Univ.) / Toshinori Susuki(Tohoku Gakuin Univ.) / Fumiaki Maehara(Waseda Univ.) / Minoru Okada(NAIST)
Secretary Takatoshi Sugiyama(NICT) / Toshinori Susuki(NTT) / Fumiaki Maehara(Univ. of Kitakyushu) / Minoru Okada(Tokyo City Univ.)
Assistant / Yusuke Kozawa(Tokyo Univ. of Science) / Akira Nakamura(Tokyo Univ. of Science) / Ryohei Nakamura(National Defense Academy)

Paper Information
Registration To Technical Committee on Satellite Telecommunications / Technical Committee on Wideband System
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Relationship between Rain Front and Rain Area Velocities and Rain Attenuation Observation at 3 Locations in Ku-Band Satellite Communications Links
Sub Title (in English)
Keyword(1) Satellite communications
Keyword(2) Rain attenuation
Keyword(3) Ku band
Keyword(4) Rain area motion
Keyword(5) Rain fronts
Keyword(6) Real time weather charts
1st Author's Name Naoki Kubota
1st Author's Affiliation Osaka Electro-Communication University(Osaka Electro-Commun. Univ.)
2nd Author's Name Yasuyuki Maekawa
2nd Author's Affiliation Osaka Electro-Communication University(Osaka Electro-Commun. Univ.)
3rd Author's Name Yoshiaki Shibagaki
3rd Author's Affiliation Osaka Electro-Communication University(Osaka Electro-Commun. Univ.)
Date 2016-05-20
Paper # SAT2016-10
Volume (vol) vol.116
Number (no) SAT-41
Page pp.pp.53-56(SAT),
#Pages 4
Date of Issue 2016-05-12 (SAT)