Study of Refraction Effects for Propagation over Terrain

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25530%2F20%3A39915593" target="_blank" >RIV/00216275:25530/20:39915593 - isvavai.cz</a>
Result on the web
<a href="https://www.intechopen.com/books/electromagnetic-propagation-and-waveguides-in-photonics-and-microwave-engineering/study-of-refraction-effects-for-propagation-over-terrain" target="_blank" >https://www.intechopen.com/books/electromagnetic-propagation-and-waveguides-in-photonics-and-microwave-engineering/study-of-refraction-effects-for-propagation-over-terrain</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5772/intechopen.88543" target="_blank" >10.5772/intechopen.88543</a>

Result language
angličtina
Original language name
Study of Refraction Effects for Propagation over Terrain
Original language description
This chapter investigates the radio-wave propagation above irregular ground, including the troposphere, using physical optics computation. We briefly describe used simplifications, which substantially reduce numerical simulations. Using the principle of stationary phase, we can approximate the propagation over a terrain (the PO approximation of the vector problem with a 3-D surface) with a 2-D surface. Moreover, we approximate the reflection coefficient for a surface with random deviations considering the surface standard deviation and the local Fresnel reflection coefficient for the smooth ground. We present the novel computations of physical optics for investigations of radar coverage diagrams. We consider both monostatic and bistatic radars, the far-field antenna measuring ranges, and studies of air refraction index. We validate the calculations by both experimental results and the other numerical simulations. The experimental results changed during seasons and according to terrain and troposphere conditions including vegetation, cultivation, snow, and air temperature and pressure.
Czech name
—
Czech description
—

Project
<a href="/en/project/EF17_049%2F0008394" target="_blank" >EF17_049/0008394: Cooperation in Applied Research between the University of Pardubice and companies, in the Field of Positioning, Detection and Simulation Technology for Transport Systems (PosiTrans)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Book/collection name
Electromagnetic Propagation and Waveguides in Photonics and Microwave Engineering
ISBN
978-1-83968-188-2
Number of pages of the result
18
Pages from-to
101-118
Number of pages of the book
179
Publisher name
IntechOpen Limited
Place of publication
Londýn
UT code for WoS chapter
—

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