c_boxit - function to to apply a box car smoother to a signal
int c_boxit( int npts, int iwide, int isign, int ntimes, float s1[], float s2[] )
Basic Seismic
Utilities (BSU) function applies a box car smoother to a
seismic trace. The filter can be be a simple smoother, or
one of two possible high-pass filter options are also
available.
C-language version.
Arguments
npts (int)
Number of samples in a trace
iwide (int)
Width of box car in samples.
isign (int)
Switch to select smoother (low-pass) or high-pass filter.
-1=low-pass smoother (box car)
0=high-pass (1-sinc**ntimes)
+1=high-pass
(1-sinc)**ntimes
ntimes (int)
Number of times to iteratively apply the filter.
s1[] (float)
Input signal
s2[] (float)
Filtered output signal
NOTE:
The fortran 77 equivalent of this subroutine is
boxit.f
boxit(3), bagc(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>