Program sfkirchinv | Kirchhoff 2-D post-stack least-squares time migration with antialiasing. 
[SYNOPSIS]
sfkirchinv < in.rsf > out.rsf fweight=fwght.rsf weight=wght.rsf velocity=vel.rsf model0=in0.rsf hd=y ps=y sw=0 niter=10 err=
[COMMENTS]

Antialiasing by reparameterization. 
[PARAMETERS]
string  | err | = |   | 	output file for error 
string  | fweight | = |   | 	auxiliary input file name
bool    | hd | =y |  [y/n] | 	if y, apply half-derivative filter 
string  | model0 | = |   | 	auxiliary input file name
int     | niter | =10 |   | 	number of iterations 
bool    | ps | =y |  [y/n] | 	if y, apply pseudo-unitary weighting 
int     | sw | =0 |   | 	if > 0, select a branch of the antialiasing operation 
file    | velocity | = |   | 	auxiliary input file name
file    | weight | = |   | 	auxiliary input file name
[DIRECTORY]
system/seismic
