Title :
An Efficient Canonical-Grid Method for Scattering from Rough Surfaces
Author :
Lixin, Guo ; Yuchao, Ren
Author_Institution :
Sch. of Sci., Xidian Univ., Xian
Abstract :
An efficient canonical-grid (ECG) method for wave scattering from perfectly conducting random rough surfaces is proposed. In this new method, the Taylor series expansion of the Green´s function about a flat horizontal surface is replaced by interpolating polynomials using zeros of Chebychev polynomials as interpolation points. The convergence rate of the Chebychev interpolating polynomials is more rapid than that of Taylor series expansion, which extends the applicability of the standard canonical-grid (SCG) method to rougher surfaces.
Keywords :
Chebyshev approximation; Green´s function methods; electromagnetic wave scattering; polynomial approximation; Chebychev polynomials; Green function; Taylor series expansion; canonical-grid method; rough surfaces; wave scattering; Convergence; Electrocardiography; Green´s function methods; Interpolation; Polynomials; Rough surfaces; Scattering; Surface roughness; Surface waves; Taylor series;
Conference_Titel :
Antennas, Propagation & EM Theory, 2006. ISAPE '06. 7th International Symposium on
Conference_Location :
Guilin
Print_ISBN :
1-4244-0162-3
Electronic_ISBN :
1-4244-0163-1
DOI :
10.1109/ISAPE.2006.353250
