An iterative numerical method for solving the wave equation in an inhomogeneous medium with constant density is presented. The method is based on a Krylov iterative method and enhanced by a powerful preconditioner. For the preconditioner, a complex Shifted-Laplace operator is proposed, designed specifically for the wave equation. A multigrid method is used to approximately compute the inverse of the preconditioner. Numerical examples on 2D problems show that the combined method is robust and applicable for a wide range of frequencies. Extension to 3D is straightforward.
|Publication status||Published - 2004|
|Event||2004 Society of Exploration Geophysicists Annual Meeting, SEG 2004 - Denver, United States|
Duration: Oct 10 2004 → Oct 15 2004
|Other||2004 Society of Exploration Geophysicists Annual Meeting, SEG 2004|
|Period||10/10/04 → 10/15/04|
ASJC Scopus subject areas