brdc - BSU program which removes DC level or linear trend wrt time in seismic traces
brdc [ -h | infile | iswdc | usrdc ]
Basic Seismic Utilities (BSU) removes amplitude bias or linear trend in amplitudes with time. User may input a value of DC bias to remove, or the program will determine the bias in each trace and remove it. A user provided value will be the same value used on every trace. When the program computes a value, it will be unique to each trace. The last option permits a linear trend to be removed by first solving for the slope and intercept of the ampitude trend, and then removing the trend on each trace (again this will vary from trace to trace). This trend removal may be helpful if traces have been integrated with bint.
Options
|
-h |
Online help giving details on command line arguments | ||
|
infile |
Input file name | ||
|
iswdc |
Switch to select type of computation |
0=user provided DC level to remove, constant
1=program determines DC level, varies
2=program determines linear trend, varies
NOTE:
If invoked with no options, will prompt user for input
parameters.
EXAMPLE:
brdc w001.seg 1
Program determines DC level in each trace and removes it.
brdcxxxx.seg
Named according to convention (first 4char brdc, the next 4char are the first 4char of the input file name, suffix .seg)
standard output
produces a progress bar
brdcxxxx.lst
Echo check of input parameters and lists statistics for iswdc=1 or 2.
bhelp(1), bsdc(1)
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>