sfvscan (2.0-git)
index
system/seismic/Mvscan.c
Velocity analysis.

 
Synopsis
        sfvscan < cmp.rsf > scan.rsf offset=offset.rsf mask=msk.rsf grad=grd.rsf semblance=n diffsemblance=n avosemblance=n nb=2 weight=y half=y smax=2.0 ns=1 slowness=n squared=n v1= extend=4 mute=12 str=0.5 v0= dv= nv= v1= type=

Inverse of sfvelmod.

May 2013 program of the month:
http://www.ahay.org/blog/2013/05/04/program-of-the-month-sfvscan/

 
Parameters
       
 
bool avosemblance=n [y/n]
if y, compute AVO-friendly semblance
 
bool diffsemblance=n [y/n]
if y, compute differential semblance
 
float dv=
step in velocity
 
int extend=4
trace extension
 
string grad=
auxiliary input file name
 
bool half=y [y/n]
if y, the second axis is half-offset instead of full offset
 
string mask=
optional mask file (auxiliary input file name)
 
int mute=12
mute zone
 
int nb=2
semblance averaging
 
int ns=1
number of heterogeneity scans
 
int nv=
number of scanned velocities
 
string offset=
auxiliary input file name
 
bool semblance=n [y/n]
if y, compute semblance; if n, stack
 
bool slowness=n [y/n]
if y, use slowness instead of velocity
 
float smax=2.0
maximum heterogeneity
 
bool squared=n [y/n]
if y, the slowness or velocity is squared
 
float str=0.5
maximum stretch allowed
 
string type=
type of semblance (avo,diff,sembl,power,weighted)
 
float v0=
first scanned velocity
 
float v1=
reference velocity
 
bool weight=y [y/n]
if y, apply pseudo-unitary weighting

 
Used In
       

 
BEI
        dpmv/krchdmo
vela/vscan
wvs/vscan

 
DATA
        alaska/line31-81-m8r
freeusp/land
nankai/data
nankai/shots
teapotdome/nmostack
viking/basicm8r
viking/firstlook

 
GEE
        prc/bob

 
GEO384S
        hw3/nmo
hw3/nmo3d
hw4/alaska
hw5/hradon
hw5/pradon
hw6/gazdag

 
GEO384W
        hw2/cmp
hw3/synth
hw6/blake

 
JLU
        vdseislet/demultiple
vdseislet/haskell
vdseislet/nmo
vdseislet/usp

 
RSF
        reprobook/exam3
school/data
school/fault
school2012/demo
school2016/radon
school2016/synth
scons/rsf
su/rsflab16

 
SEP
        oc2/elfshot
pefmult/mobil
vc2/sigvc

 
TCCS
        avo/avo
avo/avo2
diffr/fault
nmo3/azimuthtest
nmodeblend/bei
nmodeblend/simple
nmodeblend/synth
oc3/bei
oc3/fault
pi/bei
pmig/mig
pmig/nmo
reversible/nscnmo
seislet/diplet
seislet/gath
simistack/bei
simistack/flat4
svmf/bei
svmf/class
vscan/bei
vscan/hw
vscan/stack
vscan/synth

 
UH
        avostack/cmp1
avostack/cmp2
avostack/stack
avostack/synh
avostack/synl

 
XJTU
        mcaseislet/sep2