Frequency correlation of shadowing over TV bands in suburban area
Frequency correlation of shadowing over TV bands in suburban area
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DOI：
10.1049/el.2017.2164
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发表时间：
2018
影响因子：
1.1
通讯作者：
Koya Sato;Kei Inage;T. Fujii
中科院分区：
文献类型：
--
作者：
Koya Sato;Kei Inage;T. Fujii
对郊区电视频段阴影的频率相关特性进行了评估。一些论文报道，阴影损失是高频相关的。然而，尽管频率相关性可以被建模为期望的频差的函数，但传统的工作只给出了两个或三个通道之间的相关性分析。根据在电视频段上测量的几个海量数据集，相关性已经显示出与频率差异成指数下降的比例。此外，还讨论了频率相关特性的经验模型。提出了一个由两个指数衰减模型组成的经验模型，其实验值的R平方值为∼1。
The frequency correlation characteristics of shadowing over television bands in a suburban area are evaluated. Some papers report that shadowing losses are high frequency correlated. However, although the frequency correlations can be modelled as a function of the frequency differences are expected, conventional works only present correlation analyses between two or three channels. The correlations have shown an exponential decrease in proportion to the frequency differences based on several massive datasets measured over the television bands. In addition, the empirical model for the characteristics of the frequency correlations is discussed. An empirical model that consists of two exponential decay models is proposed, and show the R-squared value for the experimental value is ∼1.