agc

NAME
SYNOPSIS
DESCRIPTION
SEE ALSO
BUGS
COPYRIGHT
AUTHOR

NAME

agc - subroutine to automatic gain control (AGC) a signal

SYNOPSIS

call agc(npts,s1,s2,s3,s4,twide,fsamin)

DESCRIPTION

Basic Seismic Utilities (BSU) subroutine applies automatic gain control (AGC) This is not a traditional AGC (exponential envelope), but rather a smoothed (box car) amplitude envelope is used to scale the data. Final output is scaled by L2 norm of amplitude envelope scaled data.
Fortran Version
.

Arguments
npts (int)

Number of samples in a trace

s1 (float)

Input seismic trace (float array).

s2 (float)

Scratch array.

s3 (float)

Scratch array.

s4 (float)

Final output signal.

twide (float)

Length of box car smoother in seconds.

fsamin (float)

Sample interval in seconds.

SEE ALSO

boxit(3)

BUGS

No known bugs.

COPYRIGHT

Copyright © 2024 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.

AUTHOR

P. Michaels, PE. <paulmichaels@.boisestate.edu>