NAME

     slstkr  - reverse tau-p tranform seismic records

SYNOPSIS

     slstkr [ -Nntap ] [ -Ootap ] [  -rsnrst  ]  [  -renred  ]  [
     -fmaxfmax  ]  [ -otnwt1 ] [ -itnwt2 ] [ -ftftaper ] [ -B ] [
     -V ] [ -? ]

DESCRIPTION

     slstkr does a slant-stack on input tau-p record & outputs  a
     range-time  record. slstkr works in the frequency domain and
     is used in conjuction with slstkf  as  a  noise  attenuation
     method.

     slstkr gets both its data and its  parameters  from  command
     line  arguments  or card images in a job stream. These argu-
     ments specify the input, output, the start and end  records,
     and tapering options.

  Command Line Input
     -N ntap
          Enter the input data set name or file immediately after
          typing  -N  on  the  command line.  This input put file
          should include the  complete  path  name  if  the  file
          resides  in  a different directory. Example -Nvsp/dummy
          tells the program to look for file 'dummy' in directory
          'vsp'.

     -O otap
          Enter the output data  set  name  or  file  immediately
          after  typing -O on the command line.  This output file
          is not required when piping the output to another  pro-
          cess.   The output data set also requires the full path
          name (see above).  No -C entry at all cues the  program
          to use command line input.

     -ft ftaper
          Enter the start frequency at which a cosine taper  will
          be  applied  to the frequency data.  This can sometimes
          reduce high frequency noise in the transform.   Default
          = no taper.

     -fmax fmax
          Maximum frequency used in transform.  This  entry  must
          be  kept to less than 1/2 nyquist frequency.  Default =
          1/2 nyquist.

     -rs nrst

     -re nred
          Only records between and including these values will be
          used. Default values are the first and last records.

     -ot ot
          This is the number of traces at the end of  the  spread
          to  which  a  linear taper is applied. The taper starts
          with a weight of unity and reaches a weight of 1/nt  at
          the end of the array.

     -it it
          This is the number of  traces  at  the  center  of  the
          spread  (if spread is split) to which a linear taper is
          applied. The taper starts with a weight  of  unity  and
          reaches a weight of 1/nt at the end of the array.

     -B verbose
          Enter the command line argument '-B'  to  apply  linear
          frequency boost.  Default = none.

     -V verbose
          Enter the command line argument '-V' to get  additional
          printout.

     -?   Enter the command line  argument  '-?'  or  -h  to  get
          online  help.  The  program  terminates  after the help
          screen is printed.

SEE ALSO

     slstkf

BUGS

     unknown

AUTHORS

     P. R. Gutowski

COPYRIGHT

     copyright 2001, Amoco Production Company
               All Rights Reserved
          an affiliate of BP America Inc.