bfxt - BSU F-X transform (both forward and reverse)
bfxt [ -h | infile1 | iopt | infile2 ]
Basic Seismic Utilities (BSU) takes F-X (frequency,space) transform of X-T (space,time) data. The user may choose to unwrap phase, or leave it wrapped on the forward transform to frequency and space. The reverse transform requires both input files (amplitude and phase as input). The code calls E. A. Robinson’s subroutines (DRUM, NLOGN, POLAR). Fortran 77.
Options
|
-h |
Online help giving details on command line arguments |
infile1
Input file name (X-T if forward transform, AMPLITUDES if inverse transform).
|
iopt |
Switch for type of transform desired. |
1= forward F-X transform, output phase unwrapped.
2= forward F-X transform, output phase wrapped.
-1= inverse
transform (requires two input files, Amp,Phase)
infile2
Only required if iopt=-1, PHASE transform file.
NOTE:
If invoked with no options, will prompt user for input
parameters.
EXAMPLE:
bfxt wave.seg 1
The forward F-X transform is computed for file wave.seg, producing both an amplitude and phase output file, phase unwrapped.
bfxt bfxtampl.seg -1 bfxtphaz.seg
The inverse F-X transform is computed from the amplitude and phase spectra.
bfxtampl.seg
Amplitude-space spectrum (iopt = 1 or 2 only)
bfxtphaz.seg
Phase-space spectrum (iopt = 1 or 2 only)
bfxt.seg
Inverse transform (time, space), (iopt = -1 only)
standard output
produces a progress bar
bfxt.lst
echo check of input parameters.
bhelp(1), nlogn(3), drum(3), polar(3), rect(3)
No known bugs.
Copyright © 2017 by Paul Michaels
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
P. Michaels, PE. <pm@cgiss.boisestate.edu>