Influence of Sea Surface Roughness on the Electromagnetic Wave Propagation in the Duct Environment

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Date
2010-12
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Mark
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Společnost pro radioelektronické inženýrství
Abstract
This paper deals with a study of the influence of sea surface roughness on the electromagnetic wave propagation in the duct environment. The problem of electromagnetic wave propagation is modeled by using the parabolic equation method. The roughness of the sea surface is computed by modifying the smooth surface Fresnel reflection coefficient to account for the reduction in the specular reflection due to the roughness resulting from sea wind speed. The propagation model is solved by the mixed Fourier split-step algorithm. Numerical experiments indicate that wind-driven roughened sea surface has an impact on the electromagnetic wave propagation in the duct environment, and the strength is intensified along with the increment of sea wind speeds and/or the operating frequencies. In a fixed duct environment, however, proper disposition of the transmitter could reduce these impacts.
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Citation
Radioengineering. 2010, vol. 19, č. 4, s. 601-605. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2010/10_04_601_605.pdf
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Peer-reviewed
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en
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Creative Commons Attribution 3.0 Unported License
http://creativecommons.org/licenses/by/3.0/
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