We derive the equations for the integral superposition of Gaussian packets in smoothly heterogeneous media. The equations are applicable to both the anisotropic ray theory and the coupling ray theory in anisotropic media, or to the isotropic ray theory in isotropic media. The equations can be used in both Cartesian and curvilinear coordinates.
Summation of Gaussian packets, anisotropy, heterogeneous media, wave propagation, travel time, amplitude, Green tensor, S-wave coupling.
The paper is available in PDF (73 kB).