RISAT-1 SigmaSAR V 3.1.  

1. SigmaSAR (Beta version 3.1.) software is  developed at Microwave  Remote Sensing and Data Processing Division, MRSDPD/MRS&GDPG/DPPA&WAA/NRSC to generate Sigma Naught  and Gamma Naught  Backscatter Images for Level-2 GeoTIFF Level-1 Ground Range, Level-1 Slant Range of FRS-1 ,FRS-2, MRS and CRS  acquisition modes  and data products of  RISAT-1. 

2. The software can read the  RISAT-1 CEOS format of Level-1  Data  and GEoTiff format  of Level-2  and Level-2A  Enhanced GeoReferenced datasets.
 

2.Despeckling algorithms suitable for RISAT-1 data like Lee-Sigma  and Gamma MAP have been implemented . The filtered images along with the Despeckled Sigma Naught images   are   the outputs .


3. The software is  a GUI-based application for Windows for 32-bit and 64- bit architecture. 


3.  Separate executables are available for 32-bit and 64-bit systems and the corresponding zip folder can be downloaded and unzipped.

4.Navigate to the folder and click on the “        ” application and the GUI   Application opens up .


5. The user can  choose using the various button controls for the required output.

6. Folder browsing option is provided for selecting  the input.The user can select the RISAT-1 Work Order folder as the input. 

The Sigma Naught    and  Speckle  Filtered  Products are generated in the same input folder in the GeoTIFF format for Level-2  and in TIFF format for Level-1.


7. For Windows-32 bit systems, navigate to the corresponding folder and click on the “  ” application

8.For queries and feedback please contact  haripriya_s@nrsc.gov.in,   sitakumari_evs @nrsc.gov.in,   prasad_avv@nrsc.gov.in.