The following table displays synthetic aperture radar (SAR) product types and processing levels, along with open-source and commercial software for working with these data.
| Processing Type | Processing Level | Image Type | Product Description | Open-Source Software | Commercial Software |
|---|---|---|---|---|---|
| Raw Data | L0, L1.0, Raw | Unfocused | Unprocessed signal data. Requires a SAR processor to be visualized. | ISCE | ENVI SARscape GAMMA |
| Single Look Complex (SLC) | L1.1, SLC | Focused (single look); has speckle | Contains amplitude and phase values. Retains slant-range geometry. | ASF HyP3 Sentinel Application Platform (SNAP) PolSARpro | ENVI SARscape GAMMA |
| Amplitude | L1, L1.5, GRD (Ground Range Detected) | Focused (multilooked); reduced speckle | Can be visualized. Contains amplitude values only. Retains slant-range geometry. Projected to ground range coordinates. | ASF HyP3 SNAP ASF MapReady | ENVI SARscape GAMMA |
| Corrected Amplitude | GeoTIFF | GIS-compatible | Image has had georeferencing applied. | QGIS | ArcGIS |
| Corrected Amplitude | Radiometric Terrain Correction (RTC) | GIS-compatible | Image has had radiometric and terrain correction applied. | QGIS | ArcGIS |