Help Content > Import Data > SAR Spaceborne > Single Sensors

Purpose

Standard products, acquired by any of the COSMO-SkyMed constellation satellites, are imported into the SARscape Data Format for further processing.

Technical Note

The import functionality requires only the input Parameter file(s) to be entered. The relevant data type is automatically identified.

In case the input is a list of files, all products must be of the same type (refer to the "Supported Products" section).

For ScanSAR data, the SCS_U format has to be preferred in order to obtain accurate radiometric corrected products.

Supported Products

DGM	Multi-look Ground Range.

GEC	Ellipsoidal Geocoded.

GTC	Geocoded and Terrain Corrected using a Digital Elevation Model.

SCS	Single Look Complex.

Further information at http://www.cosmo-skymed.it/en/products.htm

Input Files

Input file list

Input file name(s) of the original data (.h5). These files are mandatory.

Parameters - Principal Parameters

Apply Calibration Constant

If set to true, a calibration constant scaling (Beta nought) is applied. Note: this has no effect of phase values.

Rename Output Using Parameters

If set to true, only relevant information will be copied from the input name(s) to the output name(s), the full root name otherwise.

Fill dummy during import

Possibility to replace invalid backscatter pixel values with random low values.

Enable tropospheric range delay calibration correction

This flag enables an optional correction of the first fast time annotated in the original SAR product. The correction aims at mitigating inaccuracies in range measurements due to the hydrostatic component of tropospheric propagation delay experienced by electromagnetic waves.

The hydrostatic delay is caused by dry gases and is responsible for the largest part of the range error budget related to the various atmospheric effects (i.e. dry gases, water vapor and ionosphere).

This correction can improve the geocoding precision of those spaceborne SAR products which do not already embed atmospheric correction parameters in their metadata.

The hydrostatic delay is estimated as a fixed zenith component scaled by a factor dependent on the acquisition look angle in order to account for the greater distance travelled by waves along a slant path.

A significative improvement in the interferometry and Geocoding process is observed.

Parameters - Global

It brings to the general section of the Preferences specific parameters. Any modified value will be used and stored for further processing sessions.

Parameters - Other Parameters

It brings to the general section of the Preferences parameters. Any modified value will be used and stored for further processing sessions.

Output Files

Output file list

Output file name(s) of the imported data. These files are mandatory.

Root name of the imported file(s) and associated header files (.sml, .hdr). Specific file suffixes are added according to the data type.

.shp

Shape file and associated header files (.sml, .hdr) containing the image perimeter in geographic co-ordinates.

.kml

ASCII file containing the image perimeter in geographic co-ordinates. Double clicking on this file will automatically position the boundaries of the scene into the Google Earth environment.

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.

The window will be closed.

Help

Specific help document section.

Specific Function(s)

None.

Import Data - SAR Spaceborne - COSMO-SkyMed

Import Data - SAR Spaceborne - COSMO-SkyMed