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dc.contributor.authorHasirci, Z.
dc.contributor.authorCavdar, I. H.
dc.contributor.authorOzturk, M.
dc.date.accessioned2016-04-20T06:25:36Z
dc.date.available2016-04-20T06:25:36Z
dc.date.issued2016-04cs
dc.identifier.citationRadioengineering. 2016 vol. 25, č. 1, s. 140-147. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/57920
dc.description.abstractAttenuation 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).en
dc.formattextcs
dc.format.extent140-147cs
dc.format.mimetypeapplication/pdfen
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2016/16_01_0067_0072.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectMATLAB estimation toolen
dc.subjectray tracingen
dc.subjectsatellite servicesen
dc.subjecttree attenuationen
dc.subjecttree shapeen
dc.subjectvegetation depth.en
dc.titleSingle Tree Vegetation Depth Estimation Tool for Satellite Services Link Designen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
dc.coverage.issue1cs
dc.coverage.volume25cs
dc.identifier.doi10.13164/re.2016.0140en
dc.rights.accessopenAccessen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen


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Except where otherwise noted, this item's license is described as Creative Commons Attribution 3.0 Unported License