UDC 537.877

Polarization components of microwave scattering by some models of vegetation elements

A. A. Afonin, V. A. Timofeev

P.G.Demidov Yaroslavl State University, Sovetskaya str. 14, Yaroslavl 150003, Russia

 

The paper is received on February14, 2019, afret correction - on June 3, 2019

 

Abstract. The paper is devoted to simulation of the electromagnetic interaction with the forest environment. The modeling results of radio-wave scattering by the finite length obstacles were represented. The truncated cones of two shapes have been examined. The first of them was flat-based cone. The other cone has the rounded base. There models can be used for simulation of the vegetation components. The numerical results have been obtained on the basis of the method of discrete sources for microwave frequencies. The scatterer parameters were corresponded to complex permittivity of trees at this band. The angular dependencies of the polarization properties of the scattered field have been studied. The effects of angle of incidence, different ratios of the geometric dimensions of the obstacles and wavelength have been carried out. It has been found that the angular dependencies for co-polar and cross-polar components of the scattered field of the both truncated cones have been observed different behaviors. The cross-polar scattering field has revealed more complicate pattern. The TITAN X GPU used for the numerical calculations this research was donated by the NVIDIA Corporation.

Key words: radio-wave scattering, polarization, vegetation, homogeneous truncated cone, homogeneous truncated cone with rounded bases, method of discrete sources.

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For citation:

A. A. Afonin, V. A. Timofeev. Polarization components of microwave scattering by some models of vegetation elements.  Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No. 6. Available at http://jre.cplire.ru/jre/jun19/14/text.pdf

DOI  10.30898/1684-1719.2019.6.14