Abstract:

The auhtors presented an asymptotic procedure for the computation of wave fields in twodimensional inhomogeneous media. It is based on the simulation of the wave field by a system of Lagrangian Gaussian beams (LGB). Each beam is continued independently through an arbitrary inhomogeneous structure. The complete wave field is then obtained as an integral superposition of all Gaussian beams. Numerical results  presented verify the efficiency of our method.

Key words: Lagrangian Gaussian beams (LGB), high frequency, ray tracing system