Comparison of approximation and rigorous solution of electromagnetic scattering from nonspherical drops

Author

Khlopov, Grygoriy ; Veselovska, Ganna

Author_Institution

Dept. of Phys. fundamentals of radar, Inst. for Radiophys. & Electron., Kharkiv, Ukraine

fYear

2014

fDate

23-25 Sept. 2014

Firstpage

75

Lastpage

78

Abstract

The numerical analysis of RCS calculations for ellipsoidal drops and Pruppacher-Pitter drops by using spherical drops and dipole scattering approximations are considered. The results are compared with the data of exact solution of the diffraction problem of electromagnetic scattering on such drops by using the method of moments for horizontal and vertical polarization of an incident field at wavelengths λ =0.8 cm, 3.2 cm, 5.5 cm and 10 cm. Also the polynomial approximation of rigorous results is proposed and the expansion coefficients are found. This allows using of the given data for calculation of scattering characteristics in the case of a polydisperse medium of nonspherical particles.

Keywords

electromagnetic wave polarisation; electromagnetic wave scattering; method of moments; polynomial approximation; radar cross-sections; remote sensing by radar; Pruppacher-Pitter drops; RCS calculations; dipole scattering approximations; electromagnetic scattering; ellipsoidal drops; horizontal polarization; incident field; method of moments; nonspherical drops; numerical analysis; polydisperse medium; polynomial approximation; vertical polarization; wavelength 0.8 cm; wavelength 10 cm; wavelength 3.2 cm; wavelength 5.5 cm; Atmospheric waves; Shape; Solids; nonspherical drops; radar cross section;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwaves, Radar and Remote Sensing Symposium (MRRS), 2014 IEEE

Conference_Location

Kiev

Print_ISBN

978-1-4799-6072-9

Type

conf

DOI

10.1109/MRRS.2014.6956669

Filename

6956669