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<< Click to Display Table of Contents >> Interferometry - Interferometric Tools - Interferometric Data Coregistration |
  
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<< Click to Display Table of Contents >> Interferometry - Interferometric Tools - Interferometric Data Coregistration |
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Purpose
This functionality is intended for coregistering all interferometric products coming from two different pairs.
Technical Note
The Reference data belonging to the two InSAR pairs must be provided in input: the one entered as "Input Secondary File" will be resampled to fit the geometry of the "Input Reference File". Reference and Secondary must be of the same data type (i.e. SLC).
Details about the coregistration process are provided in the relevant Technical Note.
All complex data types (e.g. _int, _fint, etc.) are resampled using the "Sinc" interpolator, whatever resampling method has been specified.
Input Files
Input Reference file
File name of the Reference data (_pwr for ScanSAR products; _slc or _pwr for all the others) of the InSAR pair to use as reference. It is suggested to enter here the SLC product. This file is mandatory.
Input Secondary file
File name of the Reference data (_pwr for ScanSAR products; _slc or _pwr for all the others) of the InSAR pair to use as Secondary. It is suggested to enter here the SLC product. This file is mandatory.
Input File List
File name of all the interferometric products to be coregistered (these must belong to the "Secondary" pair). This file list is mandatory. In case SLC data are in this list, they will not be coregistered.
Optional Files
Coregistration file
A previously created file containing points representing the center of the coregistration windows used for the manual coregistration. The file can be either a *.xml file or a point shape file (.shp). This file is optional.
Output Files
Output File List
File name of the coregistered interferometric products. This file list is mandatory.
_rsp
Coregistered interferometric products ("Secondary" file list) with the associated header files (.sml, .hdr).
_par
ASCII file containing the coregistration shift parameters in range and azimuth.
_orbit_off.shp
Shape file with the points used to estimate the orbit based shift. This file contains the following information:
| - | Pixel position in range direction (Range), in original pixel units. |
| - | Pixel position in azimuth direction (Azimuth), in original pixel units. |
| - | Shift measured in range direction (Dr), in original pixel units. |
| - | Shift measured in azimuth direction (Da), in original pixel units. |
| - | Calculated polynomial fitted shift in range direction (Drfit), in original pixel units. |
| - | Calculated polynomial fitted shift in azimuth direction (Dafit), in original pixel units |
_winCC_off.shp
Shape file with the points used to estimate the cross correlation based shift from the Intensity data. The information provided by the "_orbit_off.shp" file are updated on the basis of the cross correlation estimate.
_winCoh_off.shp
Shape file with the points used to estimate the coherence based shift. The information provided in the "_winCC_off.shp" are updated by means the coherence based estimate. This file contains also the following additional information:
| - | Signal to Noise Ratio (SNR), which is a linear dimensionless value. |
| - | Coherence value. It is dimensionless and it can vary from 0 to 1. |
Details specific to the Units of Measure and Nomenclature of the output products can be found in the Data Format section.
General Functions
Exec
The processing step is executed.
Store Batch
The processing step is stored in the batch list. The Batch Browser button allows to load the batch processing list.
Close
The window will be closed.
Help
Specific help document section.
Specific Function(s)
None.
Task, SARscapeBatch object, SARscapeBatch script example
References None.