Experimental verification of effect of horizontal inhomogeneity of evaporation duct on electromagnetic wave propagation

Yang Shi, Kun De Yang, Yi Xin Yang, Yuan Liang Ma

科研成果: 期刊稿件文章同行评审

49 引用 (Scopus)

摘要

The evaporation duct which forms above the ocean surface has a significant influence on electromagnetic wave propagation above 2GHz over the ocean. The effects of horizontal inhomogeneity of evaporation duct on electromagnetic wave propagation are investigated, both in numerical simulation and experimental observation methods, in this paper. Firstly, the features of the horizontal inhomogeneity of the evaporation duct are discussed. Then, two typical inhomogeneous cases are simulated and compared with the homogeneous case. The result shows that path loss is significantly higher than that in the homogeneous case when the evaporation duct height (EDH) at the receiver is lower than that at the transmitter. It is also concluded that the horizontal inhomogeneity of the evaporation duct has a significant influence when the EDH is low or when the electromagnetic wave frequency is lower than 13GHz. Finally, experimental data collected on a 149-km long propagation path in the South China Sea in 2013 are used to verify the conclusion. The experimental results are consistent with the simulation results. The horizontal inhomogeneity of evaporation duct should be considered when modeling electromagnetic wave propagation over the ocean.

源语言英语
文章编号044102
期刊Chinese Physics B
24
4
DOI
出版状态已出版 - 1 4月 2015

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