Title :
A conjugate gradient algorithm for the treatment of multiple incident electromagnetic fields
Author :
Smith, Charles F. ; Peterson, Andrew F. ; Mittra, Raj
Author_Institution :
US Air Force Syst. Command, Los Angeles Air Force Station, CA, USA
fDate :
11/1/1989 12:00:00 AM
Abstract :
An iterative method based on the conjugate gradient (CG) algorithm is developed for the efficient treatment of equations involving multiple excitations. Examples show that significant time savings can be obtained as compared to treating each excitation individually with the conjugate gradient algorithm. However, these savings are not obtained without the drawback of increased memory requirements to store the additional excitations, residuals, and solutions. The efficiency of this algorithm tends to increase as additional excitations are added
Keywords :
electromagnetic wave scattering; iterative methods; conjugate gradient algorithm; electromagnetic wave scattering; iterative method; memory requirements; multiple incident electromagnetic fields; residuals; solutions; Bistatic radar; Character generation; Dielectrics; Electromagnetic fields; Electromagnetic scattering; Integral equations; Iterative algorithms; Iterative methods; Radar scattering; Sparse matrices;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
