Title :
Combined wavelet transform and banded-matrix iterative approach/canonical grid methods for solving large-scale electromagnetic problems
Author :
Lin, C.-M. ; Chi Hou Chan
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
Combining the Daubechies wavelet transform and banded-matrix iterative approach/canonical grid method, an efficient algorithm for solving large-scale electromagnetic problems is proposed. Based on the concept of the multiresolution analysis, a banded-matrix is compressed so as to reduce the required storage and speed up the computational time using the sifting window scheme. Using Monte Carlo simulations, the scattering of near-grazing incident waves by the one-dimensional lossy dielectric rough surfaces up to several hundred wavelengths is then investigated.
Keywords :
Monte Carlo methods; absorbing media; electromagnetic wave scattering; iterative methods; matrix algebra; rough surfaces; signal resolution; wavelet transforms; 1D lossy dielectric rough surfaces; Daubechies wavelet transform; EM wave scattering; Monte Carlo simulations; banded-matrix iterative approach; canonical grid methods; computational time speed up; efficient algorithm; large-scale electromagnetic problems solution; multiresolution analysis; near-grazing incident waves; sifting window; storage reduction; wavelengths; wavelet transform; Dielectric losses; Electromagnetic scattering; Iterative algorithms; Iterative methods; Large-scale systems; Multiresolution analysis; Rough surfaces; Surface roughness; Surface waves; Wavelet transforms;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.699083
