Title :
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
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;
Conference_Titel :
Microwaves, Radar and Remote Sensing Symposium (MRRS), 2014 IEEE
Conference_Location :
Kiev
Print_ISBN :
978-1-4799-6072-9
DOI :
10.1109/MRRS.2014.6956669
