SURESAMP - Resample in time
suresamp <stdin >stdout
[optional parameters]
Required parameters:
none
Optional Parameters:
nt=tr.ns number of time samples on output
dt=tr.dt/10^6
time sampling interval on output
tmin=tr.delrt/10^3 first time sample on output
Example 1: (assume original data had dt=.004 nt=256)
sufilter <data
f=40,50 amps=1.,0. |
suresamp
nt=128 dt=.008 | ...
Note the typical anti-alias filtering before sub-sampling.
Example 2: (assume original data had dt=.004 nt=256)
suresamp <data nt=512
dt=.002 | ...
Credits:
CWP: Dave
(resamp algorithm), Jack (SU adaptation)
Trace header fields accessed:
ns, dt, delrt
Trace header
fields modified: ns, dt, delrt(only,
when set tmin)