Title :
A modification of the canonical grid series expansion in order to increase the efficiency of the SMCG method
Author :
Mori, Alessandro ; De Vita, Francesca ; Freni, Angelo
Author_Institution :
Dept. of Electron. & Telecommun., Univ. of Florence, Italy
Abstract :
In this letter, we present a Green´s function approximation valid in the weak-interaction region that can be used with the sparse-matrix canonical grid (SMCG) method. It can be easily introduced into existing SMCG codes, allowing a reduction in size of the neighborhood region and, consequently, of the dynamic memory and the computation time requirements.
Keywords :
Green´s function methods; electromagnetic wave scattering; least mean squares methods; method of moments; sparse matrices; terrain mapping; Green´s function approximation; SMCG method; canonical grid series expansion; computation time; dynamic memory; sparse-matrix canonical grid method; weak-interaction region; Electromagnetic scattering; Integral equations; Iterative methods; Least squares approximation; Moment methods; Rough surfaces; Sparse matrices; Surface roughness; Taylor series; Transmission line matrix methods;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2004.841353
