Title :
3D method of moments scattering computations using the fast multipole method
Author :
Hamilton, L.R. ; Macdonald, P.A. ; Stalzer, M.A. ; Turley, R.S. ; Visher, J.L. ; Wandzura, S.M.
Author_Institution :
Hughes Res. Labs., Malibu, CA, USA
Abstract :
The fast multipole method (FMM) dramatically reduces the time and memory required to compute radar cross sections and antenna radiation patterns compared to dense matrix techniques. We have implemented the FMM in a method of moments (MoM) program to compute electromagnetic scattering from large bodies of arbitrary shape. We compare the memory and time required using the FMM to that for direct and iterative solutions using a dense impedance matrix.<>
Keywords :
antenna accessories; antenna radiation patterns; antenna theory; computational complexity; electromagnetic wave scattering; method of moments; radar cross-sections; 3D method of moments scattering computations; NASA almond; antenna radiation patterns; cylinder; dense impedance matrix; direct solutions; electromagnetic scattering; fast multipole method; half-ogive ellipse; iterative solutions; large bodies; radar cross sections; sphere; Antenna radiation patterns; Electromagnetic scattering; Integral equations; Laboratories; Moment methods; Radar antennas; Radar cross section; Radar scattering; Shape; Sparse matrices;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1994. AP-S. Digest
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-2009-3
DOI :
10.1109/APS.1994.407720
