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
Les directions et les vitesses de déplacement des zones de pluie sont estimées pour chaque type de fronts de pluie, en utilisant les différences temporelles détectées dans l'atténuation par la pluie des signaux radioélectriques des satellites en bande Ku qui ont été mesurées à l'Université d'électro-communication d'Osaka (OECU) à Neyagawa. , Osaka, Institut de recherche sur l'humanosphère durable (RISH) à Uji, Kyoto, et Observatoire MU (MU) de l'Université de Kyoto à Shigaraki, Shiga, au cours des cinq dernières années depuis septembre 2002. Ces directions et vitesses s'accordent bien avec celles directement obtenu à partir du mouvement des fronts de pluie dans les cartes météorologiques publiées par l'Agence météorologique japonaise. Le mouvement de la zone de pluie présente des directions caractéristiques en fonction de chaque type de pluie, comme les fronts froids et chauds ou les typhons. Une estimation numérique des effets des techniques de diversité des sites indique qu'entre deux sites parmi les trois emplacements (OECU, RISH, MU) séparés de 20 à 50 km, les pourcentages temporels cumulés conjoints d'atténuation par la pluie diminuent à mesure que les deux sites sont alignés le long de la même distance. les directions de mouvement de la zone de pluie. Dans un tel cas, par rapport aux recommandations de l'UIT-R, la distance requise entre les deux sites peut être, en moyenne, réduite à environ 60 à 70 % des prévisions conventionnelles.
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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},}
Copier
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 -