Wavelet-based preconditioner for three-dimensional electromagnetic integral equations Article

Deng, H, Ling, H. (2000). Wavelet-based preconditioner for three-dimensional electromagnetic integral equations . ELECTRONICS LETTERS, 36(25), 2063-2065. 10.1049/el:20001481

cited authors

  • Deng, H; Ling, H

authors

abstract

  • A wavelet-based method is proposed to effectively precondition 3D electromagnetic integral equations. The approximate-inverse preconditioner is constructed in the wavelet domain where both the moment matrix and its inverse exhibit sparse, multilevel finger structures. The inversion is carried out as a Frobenius-norm minimization problem. Numerical results on a 3D cavity show that the iteration numbers are significantly reduced with the preconditioned system. The computational cost of the preconditioner is kept under O(NlogN).

publication date

  • December 7, 2000

published in

Digital Object Identifier (DOI)

start page

  • 2063

end page

  • 2065

volume

  • 36

issue

  • 25