GAMMA GEO: Reference Manual


Contents

Generation of Parameter Files, Pre-Processing, Quality Control, and Display

ASAR_XCA Interpretation of ASAR external calibration data file (ASA_XCA)
DELFT_orb_SLC Generate DELFT ERS-1 and ERS-2 state vectors using the DELFT package program getorb
DELFT_vec Determine ERS state vectors from DELFT state vectors generated by getorb and insert them into SLC/MLI Parameter File
PRC_vec Extract state vectors from a Precision Orbit (PRC) file and inserts them into SLC/MLI Parameter File
ORRM_vec Extract state vectors from an Preliminary Orbit ORRM file and inserts them into SLC/MLI Parameter File
create_diff_par Creation and editing of DIFF parameter file used for image registration, geocoding, and differential interferometry
create_dem_par Creation and editing of DEM/MAP parameter file
dcomp_sirc Decompression of compressed SIR-C SAR SLC data processed by JPL
dcomp_sirc_quad Decompression of quad polarized compressed SIR-C SAR SLC data processed by JPL
multi_look, multi_look_ESA Generation of multi-look intensity image from SLC image (for fcomplex, and short integer formatted SLC data)
multi_look_MLI Multi-looking of real valued multi-look intensity image (MLI)
par_ASAR SLC parameter and image files for ASAR
par_<facility> Create ISP SLC Parameter File from the CEOS Leader File or MSP Processing Parameter File
par_PRI Create the ISP Parameter File for ESA processed ERS-1 and ERS-2 PRI products using the CEOS Leader File
par_PRI_ERSIN_JERS Create the ISP Parameter File for ESA processed JERS-1 PRI products using the CEOS Leader File
radcal_PRI Convert ESA processed short integer format PRI to radiometrically calibrated GRD image (float)
radcal_MLI Radiometric calibration of multi-look intensity image (MLI)
radcal_SLC Radiometric calibration of single-look complex image (SLC)
GEO display tools Display of image files (located in DISP package)
raster image generation Generation of SUN and BMP raster images (located in DISP package)

Geocoding and Image Registration Programs

GRD_to_SR Ground range (GRD) to slant range (SR) image transformation
SR_to_GRD Slant range (SR) to ground range (GRD) image transformation
coord_to_sarpix Calculate SAR image pixel number of indicated map coordinate
coord_trans Map projection transformation for single coordinate
dem_trans Coordinate/projection transformation for DEM (Digital Elevation Model)
map_trans Coordinate/projection transformation for image data
gc_map Derivation of geocoding lookup table and DEM products from DEM in map geometry and SAR imaging geometry parameters
gc_map_grd Derivation of geocoding lookup table and DEM products from DEM in map geometry and SAR imaging geometry parameters for SAR image in ground-range coordinates
gc_map_fine Geocoding lookup table refinement
gc_map_inversion Geocoding lookup table inversion
gec_map Derivation of geocoding lookup table for ellipsoid corrected geocoding
gec_map_grd Derivation of geocoding lookup table for ellipsoid corrected geocoding of SAR image in ground-range coordinates
geocode Forward transformation based on geocoding lookup table
geocode_back Backward transformation based on geocoding lookup table
init_offsetm Initial offset estimation for real valued image pair
interp_real Registration of real valued data using nearest neighbor, spline or spline-log interpolation algorithms
interp_cpx Registration of complex valued data (interpolation algorithm)
gcp_2ras Select corresponding points from two SUN raster or BMP format images
offset_fitm Determination of registration polynomial from offset field
offset_list_fitm Determination of registration polynomial from control point coordinate list
offset_pwrm Determination of registration offset field for real valued image pair using intensity cross-correlation
sarpix_coord Calculate map coordinate of indicated SAR image pixel

Mosaicking

mosaic Mosaic geocoded images with identical format, map projection, and pixel spacing parameters

GEO csh-scripts

ERS_ASF_SLC Read Exabyte with SLC data processed by the Alaska SAR Facility (ASF)
ERS_ESA_PRI Read Exabyte with PRI data processed by the ESA PAFs
ERS_ESA_SLC Read Exabyte with SLC data processed by the ESA PAFs
GEC_MLI Ellipsoid corrected SAR geocoding of MLI image to UTM coordinates
GEC_GRD Ellipsoid corrected SAR geocoding of ground-range (GRD) image to UTM coordinates
GTC_MLI Terrain corrected SAR geocoding of MLI image to map coordinates
GTC_GRD Terrain corrected SAR geocoding of ground-range (GRD) image to map coordinates

File Formats and Auxiliary Files

Makefile Makefile to compile GEO programs
datums.h File containing Ellipsoid Datum Parameter list
ellipsoids.h File containing Ellipsoid Parameter list
projection_params.h File containing Map Projection Parameter list
typedef_ISP.h File containing structure definitions used by Gamma Interferometric SAR Processor (ISP) and also by many DIFF programs
typedef_DIFF.h File containing structure definitions used by Gamma Differential Interferometry Software (DIFF)
SLC data Format description for SAR single look complex (SLC) data files (e.g. <orbit>.slc)
MLI data Format description for SAR multi-look intensity (MLI) data files (e.g. <orbit>.mli)
GRD data Format description for SAR ground-range data files (e.g. <orbit>.grd)
PRI data Format description for SAR PRI Product data files (e.g. <orbit>.pri)
*.par Format description and definitions for SLC/MLI/GRD parameter file (<orbit>.par)
DEM_par Format description and definitions for DEM parameter file *.dem_par)
DIFF_par Format description and definitions for DIFF parameter file (*.diff_par)

Copyrights for Documentation, Users Guide and Reference Manual by Gamma Remote Sensing, 2002.
UW, CW, TS, last change 11-Nov-2002.