dopiq (pronounced "dawp-I.Q")

USAGE
dopiq recordlength start nlines mean prf headerlength outfile
  • recordlength - in bytes
  • start - starting line number to use for processing
  • nlines - number of lines to use for processing, should be enough to cover at least one synthetic aperture
  • mean - the mean value of the data samples. For ERS this is 15.5 (5 bit samples). For JERS it is 3.5.
  • prf - the prf in hz
  • headerlength - in bytes
  • outfile - a file name to write the output to. If not specified, dumps to screen.
FUNCTION Estimates the doppler frequencies for each pixel in the image.
PROCESS First column in output file is in units of prf. Second column is in hz.
CALLED_BY make_raw.pl
FILES_USED tmp_IMAGERY.raw
FILES_CREATED dop.out


LAST UPDATE May 29, 1998
This software is part of the JPL/Caltech ROI_PAC suite.
Not for general distribution.		 For more info:
roi_pac@gps.caltech.edu
roi_pac@jpl.nasa.gov