Title :
Simulation of Electromagnetic Scattering of Lossy Fractal Dielectric Rough Surface by the PBTG-BMIACAG Method
Author :
Peiwen, Yan ; Chuangming, Tong
Author_Institution :
Missile Inst., Air Force Eng. Univ., Xian
Abstract :
In microwave remote sensing applications, energy conservation and an accurate calculation of brightness temperature must be considered. So a dense sampling of points per free space wavelength is required. In this paper, the physics- based two-grid (PBTG) method and the banded matrix iterative approach (BMIA) canonical grid (CAG) combined with MoM were applied to calculate scattering problem of the lossy dielectric fractal rough surfaces. The speed is greatly quickened by the method and accurate results for brightness temperature calculations was given. Then, the advantages of fast method in accurate and speed were compared with MoM. At last, the bistatic scattering coefficient and brightness temperature of fractal rough surface is given.
Keywords :
computational electromagnetics; electromagnetic wave scattering; fractals; iterative methods; matrix algebra; microwave measurement; permittivity; remote sensing; rough surfaces; surface electromagnetic waves; MoM comparison; PBTG-BMIA-CAG method; banded matrix iterative approach; bistatic scattering coefficient; brightness temperature calculation; canonical grid; electromagnetic scattering; energy conservation; lossy fractal dielectric rough surface; microwave remote sensing applications; physics- based two-grid method; Brightness temperature; Dielectric losses; Electromagnetic scattering; Energy conservation; Fractals; Magnetic losses; Remote sensing; Rough surfaces; Sampling methods; Surface roughness; PBTG-BMIACAG; dielectric rough surface; scattering;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4555147
