Running process_2pass.pl

The process_2pass.pl script processes raw data into a geocoded, unwrapped interferogram with topography removed, using the 2-pass method.

process_2pass.pl parameter_file [DoItFrom] [EndItAt]

Parameter	Description	Value
parameter_file	Input parameter file	file_name, e.g. date1-date2.proc
DoItFrom	Define where to begin processing	raw, roi_prep, orbbase, slcs, offsets, resamp, flatorb, full_res, seismic, begin_filt, filtered, make_mask, unwrapped, done_sim_off, done_sim_removal, redo_base, use_sim_base, synth_offset, sim_removal, sim_removal_bsim, unwrapped_bsim
EndItAt	Define where to end processing	raw, roi_prep, orbbase, slcs, offsets, resamp, flatorb, full_res, seismic, begin_filt, filtered, make_mask, unwrapped, done_sim_off, done_sim_removal, redo_base, use_sim_base, synth_offset, sim_removal, sim_removal_bsim, unwrapped_bsim, done

(fromDS's website)


Tips:

• To begin with process the interferogram in stages [e.g. make slcs (DoItFrom=raw, EndItAt=slcs); make flattened interferogram (DoItFrom=slcs, EndItAt=flatorb); make unwrapped interferogram (DoItFrom=flatorb, EndItAt=unwrapped); make geocoded interferogram (DoItFrom=unwrapped, EndItAt=done)
• If you just type "process_2pass.pl parameter_file" this will start at the beginning and continue until completion or failure.
• In order to get past the "flatorb" stage, you will need to have a DEM in the correct format. I suggest create this while the slc images are being made. Instructions are here.
  
• You can view all image files using dgx.pl and/or ERMapper (see 8. viewing results)
  
• Check the baseline information in date1_date2_baseline.rsc in the int* directory
• You will probably want to check for and fix any unwrapping errors. This is easy in ERMapper. See my old roi_pac instructions for more details.
  
• ... more later!
  

Full processing options are listed on David Schmidt's website