Abstract
Let D={(x, y) ∈ ℝ2 | x>0, y ∈ ℝ} and u(x, y, t) be the solution of an initial-boundary value problem for the two-dimensional wave equation in the half plane D. The half plane D carries a velocity stratification given by flat layers parallel to the boundary of the half plane characterized by a thickness and a constant velocity. We consider the following inverse problem: given the initial data, from the knowledge of u(0, 0, t), t>0, reconstruct the stratification. We give an algorithm to solve this problem based on an explicit formula for u(0, 0, t) and we report some numerical experience.
Preview
Unable to display preview. Download preview PDF.
References
Maponi P., Zirilli F.: Inverse problem for a class of two-dimensional wave equations with piecewise constant coefficients. preprint.
Bartoloni A., Lodovici C., Zirilli F. (1993): Inverse problem for a class of one-dimensional wave equations with piecewise constant coefficients, J. of Optim. Theory and Appl., 76, 13–32.
Giordana C., Mochi M., Zirilli F. (1992): The numerical solution of an inverse problem for a class of one-dimensional diffusion equations with piecewise constant coefficients, SIAM J. on Appl. Math., 52, 1992, 428–441.
Mochi M., Pacelli G., Recchioni M. C., Zirilli F.: An inverse problem for a class of two dimensional diffusion equations with piecewise constant coefficients, preprint.
Reynolds A. C. (1978): Boundary conditions for the numerical solution of the wave propagation problems, Geophysics, 43, 1099–1110.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1997 Springer-Verlag
About this paper
Cite this paper
Fatone, L., Maponi, P., Pignotti, C., Zirilli, F. (1997). An inverse problem for the two-dimensional wave equation in a stratified medium. In: Chavent, G., Sabatier, P.C. (eds) Inverse Problems of Wave Propagation and Diffraction. Lecture Notes in Physics, vol 486. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0105776
Download citation
DOI: https://doi.org/10.1007/BFb0105776
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-62865-1
Online ISBN: 978-3-540-68713-9
eBook Packages: Springer Book Archive