NAME

       mintpy-prep_gamma - Prepare attributes file for Gamma product.

DESCRIPTION

       usage: prep_gamma.py [-h]

       [--sensor {alos,alos2,csk,env,ers,gfen3,jers,ksat5,ni,rs1,rs2,rcm,sen,tsx,uav}]
              file [file ...]

       Prepare attributes file for Gamma product.

              For each interferogram, including unwrapped/wrapped interferograms and coherence, 3
              metadata files are required: 1) reference .par file, e.g.  130118_4rlks.amp.par  2)
              secondary  .par  file,  e.g.  130129_4rlks.amp.par 3) interferogram .off file, e.g.
              130118-130129_4rlks.off

              Other metadata files are recommended and can be generated from the above 3  if  not
              existed,  more  specifically:  4) baseline files, e.g. 130118-130129_4rlks.baseline
              and 130118-130129_4rlks.base_perp

              It can be generated from file 1-3 with Gamma command base_orbit and base_perp)

              5) corner files, e.g. 130118_4rlks.amp.corner_full and 130118_4rlks.amp.corner

              It can be generated from file 1 with Gamma command SLC_corners)

              This script will read all these files (generate 4 and 5 if not existed), merge them
              into  one,  convert  their  name from Gamma style to ROI_PAC style, and write to an
              metadata file, same  name  as  input  binary  data  file  with  suffix  .rsc,  e.g.
              diff_filt_HDR_130118-130129_4rlks.unw.rsc

              For DEM file in radar/geo coordinates (.hgt_sim or .rdc.dem / .utm.dem) and

              lookup table file for geocoding (.UTM_TO_RDC), 2 metadata files are required:

       1) .par
              file,    for    DEM    in    geo      coordinates    and    lookup   table,   e.g.:
              sim_150911_4rlks.utm.dem.par

              2) .diff_par file, for DEM in radar coordinates, e.g. sim_150911_4rlks.diff_par

              Here is an example of how your Gamma files should look like: Before loading:

              For each interferogram, 5 files are needed:

              130118-130129_4rlks.off          130118_4rlks.amp.par          130129_4rlks.amp.par
              filt_130118-130129_4rlks.cor diff_130118-130129_4rlks.unw

              For each dataset, only one sim* folder with 5 files are needed,

              sim_150911_4rlks.UTM_TO_RDC  sim_150911_4rlks.diff_par  sim_150911_4rlks.hgt_sim or
              sim_150911.rdc.dem sim_150911_4rlks.utm.dem sim_150911_4rlks.utm.dem.par

              After running prep_gamma.py:

              For each interferogram:

              130118-130129_4rlks.base_perp 130118-130129_4rlks.baseline  130118-130129_4rlks.off
              130118_4rlks.ramp.corner     130118_4rlks.ramp.corner_full    130118_4rlks.ramp.par
              130129_4rlks.ramp.par filt_130118-130129_4rlks.cor filt_130118-130129_4rlks.cor.rsc
              diff_130118-130129_4rlks.unw diff_130118-130129_4rlks.unw.rsc

              For the geometry files in each dataset:

              sim_150911_4rlks.UTM_TO_RDC                         sim_150911_4rlks.UTM_TO_RDC.rsc
              sim_150911_4rlks.diff_par sim_150911_4rlks.rdc.dem      or sim_150911_4rlks.hgt_sim
              sim_150911_4rlks.rdc.dem.rsc             or            sim_150911_4rlks.hgt_sim.rsc
              sim_150911_4rlks.utm.dem sim_150911_4rlks.utm.dem.par sim_150911_4rlks.utm.dem.rsc

              Notes: both - and _ are supported;

              both YYMMDD and YYYYMMDD naming are also supported; if no multilooking applied,  do
              not add "_4rlks" in your file names.

   positional arguments:
       file   Gamma file(s)

   options:
       -h, --help
              show this help message and exit

       --sensor {alos,alos2,csk,env,ers,gfen3,jers,ksat5,ni,rs1,rs2,rcm,sen,tsx,uav}
              SAR sensor

   example:
       prep_gamma.py
              diff_filt_HDR_20130118_20130129_4rlks.unw

       prep_gamma.py
              interferograms/*/diff_*rlks.unw --sensor sen

       prep_gamma.py
              interferograms/*/filt_*rlks.cor

       prep_gamma.py
              interferograms/*/diff_*rlks.int

       prep_gamma.py
              sim_20150911_20150922.hgt_sim

       prep_gamma.py
              sim_20150911_20150922.utm.dem

       prep_gamma.py
              sim_20150911_20150922.UTM_TO_RDC