sfgroll (2.0-git)
index
user/yliu/Mgroll.c
Add linear-chirp ground-roll noise to the data

 
Synopsis
        sfgroll < in.rsf > out.rsf begf=10. endf=5. theta=0.2 alpha=0.1 beg1=0. beg2=0. rep=n

 
Parameters
       
 
float alpha=0.1
width parameter of ground roll
 
float beg1=0.
radial beginning point at first axis
 
float beg2=0.
radial beginning point at second axis
 
float begf=10.
beginning frequency of ground roll
 
float endf=5.
ending frequency of ground roll
 
bool rep=n [y/n]
if y, replace data with noise
 
float theta=0.2
direction of central ground roll