2.5-Dmodelling of elastic waves using the pseudospectral method
نویسندگان
چکیده
منابع مشابه
buckling of viscoelastic composite plates using the finite strip method
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The pseudospectral method : Accurate representation in elastic wave calculations
When finite-difference methods are used to solve the elastic wave equation in a discontinuous medium, the error has two dominant components. Dispersive errors lead to artificial wave trains. Errors from interfaces lead to circular wavefronts emanating from each location where the interface appears *‘jagged” to the rectangular grid. The pseudospectral method can be viewed as the limit of finite ...
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15 صفحه اولThe pseudospectral method: Comparisons with finite differences for the elastic wave equation
The pseudospectral (or Fourier) method has been used recently by several investigators for forward seismic modeling. The method is introduced here in two different ways: as a limit of finite differences of increasing orders, and by trigonometric interpolation. An argument based on spectral analysis of a model equation shows that the pseudospectral method (for the accuracies and integration time...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1996
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1996.tb05640.x