Measurements on UHF radio propagation over the Seto Inland Sea
Measurements on UHF radio propagation over the Seto Inland Sea
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DOI：
10.1109/apmc.2006.4429768
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发表时间：
2006-12
期刊：
影响因子：
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通讯作者：
M. Nishi;T. Iwami;S. Takahashi;T. Yoshida
中科院分区：
文献类型：
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作者：
M. Nishi;T. Iwami;S. Takahashi;T. Yoshida
本文研究了UHF频段无线电波在SETO内海的传播特性，以获得估计将在UHF频段运行的地面数字电视系统的干扰的原始数据。自2005年6月以来，作者在广岛县的两个天文台测量了松山站的UHF频段电视广播波。从测量数据可以看出，夏季经常出现持续时间小于1小时的短期衰落，冬季则出现与海平面波动相关的长期衰落。研究还发现，当强风台风袭击传播路径时，接收水平趋于稳定。
This paper investigates the characteristics of UHF band radio propagation over the Seto Inland Sea in order to obtain primary data to estimate interferences of the terrestrial digital TV system that will be operated in UHF band. The authors have measured UHF band TV broadcasting waves from the Matsuyama station at two observatories in Hiroshima prefecture since June in 2005. From the measurement data, it was clarified that short-term fading with a duration time less than 1 hour frequently occurred in summer season and that long-term fading related to sea level fluctuations occurred in winter season. It was also found that the received level became stable when the typhoon with strong winds hit the propagation paths.