sfmig45 (1.4-svn)
index
system/seismic/Mmig45.c
Finite-difference modeling/migration: 15- and 45-degree approximation.

 
Synopsis
        sfmig45 < in.rsf > out.rsf velocity=velocity.rsf inv=n beta=1./12. hi=y nt= dt= nz= dz= vel=

 
Parameters
       
 
float beta=1./12.
"1/6th trick" parameter
 
float dt=
Sampling of time axis for modeling)
 
float dz=
Sampling of depth axis (for migration, if no velocity file)
 
bool hi=y [y/n]
if y, use 45-degree; n, 15-degree
 
bool inv=n [y/n]
If y, modeling; if n, migration
 
int nt=
Length of time axis (for modeling)
 
int nz=
Length of depth axis (for migration, if no velocity file)
 
float vel=
Constant velocity (if no velocity file)
 
string velocity=
velocity file (auxiliary input file name)