** Next:** References
** Up:** Popovici : FD Traveltime
** Previous:** Numerical instability problems

I have presented an insight in the Engquist-Osher minimization
scheme used in Van Trier's finite-difference traveltime calculations.
I explained the approximations made by the scheme and
the probable source of numerical instability.
I extended Van Trier's algorithm to the 3-D case and showed examples
of finite-difference traveltime maps for 3-D models with
constant velocity and relatively
mild variations in velocity.

Stanford Exploration Project

12/18/1997