Single Tree Vegetation Depth Estimation Tool for Satellite Services Link Design
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Date
2016-04
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Společnost pro radioelektronické inženýrství
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Abstract
Attenuation caused by tree shadowing is an important factor for describing the propagation channel of satellite services. Thus, vegetation effects should be determined by experimental studies or empirical formulations. In this study, tree types in the Black Sea Region of Turkey are classified based on their geometrical shapes into four groups such as conic, ellipsoid, spherical and hemispherical. The variations of the vegetation depth according to different tree shapes are calculated with ray tracing method. It is showed that different geometrical shapes have different vegetation depths even if they have same foliage volume for different elevation angles. The proposed method is validated with the related literature in terms of average single tree attenuation. On the other hand, due to decrease system requirements (speed, memory usage etc.) of ray tracing method, an artificial neural network is proposed as an alternative. A graphical user interface is created for the above processes in MATLAB environment named vegetation depth estimation tool (VdET).
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Citation
Radioengineering. 2016 vol. 25, č. 1, s. 140-147. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2016/16_01_0067_0072.pdf
http://www.radioeng.cz/fulltexts/2016/16_01_0067_0072.pdf
Document type
Peer-reviewed
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Published version
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Language of document
en