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Purpose

 

SAR RAW data (level 0 product) must be focused to generate Single Look Complex (SLC) data, which can be used as input in any other SARscape module.

 

This functionality is intended for those raw products, which are different from the standard ones supported in the previous (i.e. sensor specific) focusing routines.

 

Technical Note

 

The input data must be provided in the SARscape specific format, which is described here below.

 

The binary file must have the following structure:

where Ilc (l and c standing respectively for line and column) is the unsigned byte Real part of a pixel; Qlc is the unsigned byte Imaginary part of a pixel; n is the number of pixels in range (columns); m is the number of pixels in azimuth (lines).
 
For each line, the prefix is:

Where rp is the line prefix length (in bytes), as annotated in the "RowPrefix" field of the associated .sml file (xml format); nu corresponds to those bytes, which are not used; lcp (l and c standing respectively for line and column) is the position inside the line prefix of the Line Counter, as annotated in the in the "LineCounterFirstBytePos" field of the .sml file.

 

The Line Counter is stored, as unsigned long integer, with MSBF byte order:

lc1 = most significant byte of line counter

lc2 = second significant byte of line counter

lc3 = third significant byte of line counter

lc4 = less significant byte of line counter

 

Input Files

 

Input file

Input raw data. This file is mandatory.

 

Parameters - Principal Parameters

 

None.

 

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

Output Single Look Complex data. This file is mandatory.

 

_slc        

Single Look Complex data and corresponding header files (.sml, .hdr).

 

_par.sml        

Xml file containing 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.

 

See Also

 

Task, SARscapeBatch object, SARscapeBatch script example

 

References

 

None.