The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
As direções e velocidades de movimento das áreas de chuva são estimadas para cada tipo de frente de chuva, usando diferenças de tempo detectadas na atenuação da chuva dos sinais de ondas de rádio de satélite de banda Ku que foram medidos na Universidade de Eletrocomunicação de Osaka (OECU) em Neyagawa. , Osaka, Instituto de Pesquisa da Humanosfera Sustentável (RISH) em Uji, Kyoto, e Observatório MU (MU) da Universidade de Kyoto em Shigaraki, Shiga, durante os últimos cinco anos desde setembro de 2002. Estas direções e velocidades estão de acordo com aquelas obtido diretamente do movimento das frentes de chuva nas cartas meteorológicas publicadas pela Agência Meteorológica do Japão. O movimento da área de chuva apresenta direções características de acordo com cada tipo de chuva, como frentes frias e quentes ou tufão. Uma estimativa numérica dos efeitos das técnicas de diversidade de locais indica que entre dois locais entre os três locais (OECU, RISH, MU) separados por 20-50 km, as percentagens de tempo cumulativas conjuntas de atenuação da chuva tornam-se mais baixas à medida que os dois locais são alinhados ao longo as direções do movimento da área de chuva. Neste caso, em comparação com as recomendações da UIT-R, a distância necessária entre os dois locais pode ser, em média, reduzida para cerca de 60-70% das previsões convencionais.
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Yasuyuki MAEKAWA, Takayuki NAKATANI, Yoshiaki SHIBAGAKI, Takeshi HATSUDA, "A Study on Site Diversity Techniques Related to Rain Area Motion Using Ku-Band Satellite Signals" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 6, pp. 1812-1818, June 2008, doi: 10.1093/ietcom/e91-b.6.1812.
Abstract: Directions and speeds of the motion of rain areas are estimated for each type of rain fronts, using time differences detected in the rain attenuation of the Ku-band satellite radio wave signals that have been measured at Osaka Electro-Communication University (OECU) in Neyagawa, Osaka, Research Institute of Sustainable Humanosphere (RISH) in Uji, Kyoto, and MU Observatory (MU) of Kyoto University in Shigaraki, Shiga, for the past five years since September 2002. These directions and speeds are shown to agree well with those directly obtained from the motion of rain fronts in the weather charts published by Japan Meteorological Agency. The rain area motion is found to have characteristic directions according to each rain type, such as cold and warm fronts or typhoon. A numerical estimate of the effects of site diversity techniques indicates that between two sites among the three locations (OECU, RISH, MU) separated by 20-50 km, the joint cumulative time percentages of rain attenuation become lower as the two sites are aligned along the directions of rain area motion. In such a case, compared with the ITU-R recommendations, the distance required between the two sites may be, on an average, reduced down to about 60-70% of the conventional predictions.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.6.1812/_p
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@ARTICLE{e91-b_6_1812,
author={Yasuyuki MAEKAWA, Takayuki NAKATANI, Yoshiaki SHIBAGAKI, Takeshi HATSUDA, },
journal={IEICE TRANSACTIONS on Communications},
title={A Study on Site Diversity Techniques Related to Rain Area Motion Using Ku-Band Satellite Signals},
year={2008},
volume={E91-B},
number={6},
pages={1812-1818},
abstract={Directions and speeds of the motion of rain areas are estimated for each type of rain fronts, using time differences detected in the rain attenuation of the Ku-band satellite radio wave signals that have been measured at Osaka Electro-Communication University (OECU) in Neyagawa, Osaka, Research Institute of Sustainable Humanosphere (RISH) in Uji, Kyoto, and MU Observatory (MU) of Kyoto University in Shigaraki, Shiga, for the past five years since September 2002. These directions and speeds are shown to agree well with those directly obtained from the motion of rain fronts in the weather charts published by Japan Meteorological Agency. The rain area motion is found to have characteristic directions according to each rain type, such as cold and warm fronts or typhoon. A numerical estimate of the effects of site diversity techniques indicates that between two sites among the three locations (OECU, RISH, MU) separated by 20-50 km, the joint cumulative time percentages of rain attenuation become lower as the two sites are aligned along the directions of rain area motion. In such a case, compared with the ITU-R recommendations, the distance required between the two sites may be, on an average, reduced down to about 60-70% of the conventional predictions.},
keywords={},
doi={10.1093/ietcom/e91-b.6.1812},
ISSN={1745-1345},
month={June},}
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TY - JOUR
TI - A Study on Site Diversity Techniques Related to Rain Area Motion Using Ku-Band Satellite Signals
T2 - IEICE TRANSACTIONS on Communications
SP - 1812
EP - 1818
AU - Yasuyuki MAEKAWA
AU - Takayuki NAKATANI
AU - Yoshiaki SHIBAGAKI
AU - Takeshi HATSUDA
PY - 2008
DO - 10.1093/ietcom/e91-b.6.1812
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2008
AB - Directions and speeds of the motion of rain areas are estimated for each type of rain fronts, using time differences detected in the rain attenuation of the Ku-band satellite radio wave signals that have been measured at Osaka Electro-Communication University (OECU) in Neyagawa, Osaka, Research Institute of Sustainable Humanosphere (RISH) in Uji, Kyoto, and MU Observatory (MU) of Kyoto University in Shigaraki, Shiga, for the past five years since September 2002. These directions and speeds are shown to agree well with those directly obtained from the motion of rain fronts in the weather charts published by Japan Meteorological Agency. The rain area motion is found to have characteristic directions according to each rain type, such as cold and warm fronts or typhoon. A numerical estimate of the effects of site diversity techniques indicates that between two sites among the three locations (OECU, RISH, MU) separated by 20-50 km, the joint cumulative time percentages of rain attenuation become lower as the two sites are aligned along the directions of rain area motion. In such a case, compared with the ITU-R recommendations, the distance required between the two sites may be, on an average, reduced down to about 60-70% of the conventional predictions.
ER -