A New Model for Scattering From Tree Canopies Based on Physical Optics and Multiple Scattering Theory

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00311663" target="_blank" >RIV/68407700:21230/17:00311663 - isvavai.cz</a>

Výsledek na webu

<a href="http://ieeexplore.ieee.org/document/7856938/?section=abstract" target="_blank" >http://ieeexplore.ieee.org/document/7856938/?section=abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TAP.2017.2669980" target="_blank" >10.1109/TAP.2017.2669980</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A New Model for Scattering From Tree Canopies Based on Physical Optics and Multiple Scattering Theory

Popis výsledku v původním jazyce

This paper presents a new model for scattering from tree canopies based on a modified physical optics approach. In this way, propagation through a canopy is accounted for by respecting the complex propagation constant, which can be obtained either by the multiple scattering theory (MST) or approximated based on the canopy specific attenuation. Unlike the case when MST is applied directly, the proposed approach offers significant benefits, including a straightforward software implementation, feasible computation times for high frequencies and electrically large canopies, and, most importantly, near-field calculations in regions close to a canopy. The new model is first tested against MST using two artificial single-tree scenarios at 2 and 10 GHz. Then, experimental data at 2 GHz obtained with the use of a remote controlled airship for an actual single-tree scenario are utilized as well. In this way, the model is thoroughly validated and its advantages over MST are presented in detail.

Název v anglickém jazyce

A New Model for Scattering From Tree Canopies Based on Physical Optics and Multiple Scattering Theory

Popis výsledku anglicky

This paper presents a new model for scattering from tree canopies based on a modified physical optics approach. In this way, propagation through a canopy is accounted for by respecting the complex propagation constant, which can be obtained either by the multiple scattering theory (MST) or approximated based on the canopy specific attenuation. Unlike the case when MST is applied directly, the proposed approach offers significant benefits, including a straightforward software implementation, feasible computation times for high frequencies and electrically large canopies, and, most importantly, near-field calculations in regions close to a canopy. The new model is first tested against MST using two artificial single-tree scenarios at 2 and 10 GHz. Then, experimental data at 2 GHz obtained with the use of a remote controlled airship for an actual single-tree scenario are utilized as well. In this way, the model is thoroughly validated and its advantages over MST are presented in detail.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/GA14-01527S" target="_blank" >GA14-01527S: Základní výzkum šíření elektromagnetických vln v přízemních vrstvách atmosféry pro spoje s malou elevací</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Antennas and Propagation

ISSN

0018-926X

e-ISSN

1558-2221

Svazek periodika

65

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1925-1933

Kód UT WoS článku

000399326900043

EID výsledku v databázi Scopus

2-s2.0-85018568992