Title :
Multilevel fast multipole algorithm for electromagnetic scattering by large complex objects
Author :
Song, Jiming ; Lu, Cai-Cheng ; Chew, Weng Cho
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
fDate :
10/1/1997 12:00:00 AM
Abstract :
The fast multipole method (FMM) and multilevel fast multipole algorithm (MLFMA) are reviewed. The number of modes required, block-diagonal preconditioner, near singularity extraction, and the choice of initial guesses are discussed to apply the MLFMA to calculating electromagnetic scattering by large complex objects. Using these techniques, we can solve the problem of electromagnetic scattering by large complex three-dimensional (3-D) objects such as an aircraft (VFY218) on a small computer
Keywords :
aircraft; electromagnetic wave scattering; integral equations; radar cross-sections; 3D objects; RCS; VFY218; aircraft; block-diagonal preconditioner; electromagnetic scattering; initial guesses; integral equations; large complex objects; multilevel fast multipole algorithm; near singularity extraction; Acoustic beams; Acoustic scattering; Aircraft; Computational complexity; Electromagnetic scattering; Integral equations; Interpolation; MLFMA; Matrix decomposition; Particle scattering;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
