Hi,
just a few suggestions :
- check the output data for each step to find where it fails.
- print the FK amplitude spectrum to check your filter parameters (why
do you use 3 parameters for the filter ? slopes=-something,+something
amps=0,1 should be ok to keep positive slopes. Before and after FK
filtering.
- use suxwigb key=gelev (or the parameter describing geophone depth) to
produce well labeled plots of the seismic data in T-Z domain instead of
suximage
- I prefer to pick the first breaks before FK (or zero phase F) filtering
Hope it helps
D.
Le 25/08/2020 à 01:35, Erdi Apatay a écrit :
Hello All
I have a script I am using for Zero Offset VSP processing. First of
all, my first three traces looked cut so I rejected them. After
getting rejected file, I filtered out the downgoing wavefield by
sudipfilt. Then, I picked arrivals on the zero amplitude line
corresponding to picking amplitudes. Then, I converted those arrival
times (seconds) to milliseconds and saving them in a txt.file. After
that, txt file is converted from ascii to binary format. Finally, I am
adding those time values to the traces by sustatic command.
At this point, however, when I try to plot the flattened upgoings, the
script plots just a so narrow part as follows:
fkfiltflat.PNG
Can you help me with this issue? I tried to change a lot of things but
I could not get whole flattened upgoings.
If you would like to check my script, I added here.
Thank you
Erdi
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