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<< Click to Display Table of Contents >> Focusing - ERS-JERS - ERS (1-2) - JERS1 |
  
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<< Click to Display Table of Contents >> Focusing - ERS-JERS - ERS (1-2) - JERS1 |
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Purpose
SAR RAW data (level 0 product) acquired by ERS-1/2 and JERS-1, must be focused to generate Single Look Complex (SLC) data, which can be used as first input for data processing in any other module.
Technical Note
Input data in CEOS format, or in ENVISAT format for ERS data, are required. The output product consist of Single Look Complex image.
Technical details relevant to the data focusing process and algorithm are provided in the module overview.
These data (precise "PRC" or preliminary "PRL" orbits), which are made available through the DLR ftp server, provide precise orbital information for ERS-1/2 acquisitions.
Access to these data can be required to the ESA Earth Observation Help Desk. The precise orbital data, which are typically available in Zip format, must be unzipped before they are entered as processing input. The file name refers to the start date/orbit validity.
If the relevant precise orbit files are already stored in an existing folder, which has been defined as PRC/PRL Directory, they do not have to be inputted in the focusing processing panel since they are automatically retrieved by the program.
Input Files
Input Data File List
File name(s) of the original ERS data file(s). Depending on the input data, the following file prefixes are used:
| - | JERS-1 Prefix "IMOP". |
| - | ERS Prefix "DAT". |
these files are mandatory.
Optional Input Orbit File List
This file – if available – is intended to enter precise orbital information; it can be entered only importing ERS-1/2 data. This file is optional for data in CEOS format, while it is mandatory for data in ENVISAT format.
Parameters - Principal Parameters
Data Type
Specify the satellite/sensor relevant to the data to import.
Rename The File Using Parameters
If set, only relevant information will be copied from the input name(s) to the output name(s), the full root name otherwise.
Parameters - Global
It brings to the general section of the Preferences 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 Single Look Complex data. These files are mandatory.
_slc
Zero-Doppler annotated Single Look Complex data and corresponding header files (.sml, .hdr).
_par.sml
Xml file containing temporary processing parameters.
SARscapeParameterExtracted
Temporary processing parameters.
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 Refer to the module overview.