The GAMMA SAR Remote Sensing Software (SAR)
The GAMMA Software is a commercial software developed and maintained by GAMMA. We are dedicated to keep the software at a very advanced level. Through our R&D projects and the many contacts to highly competent SAR/InSAR/PSI specialists, we get valuable inputs to the software development activities. We regularly implement new functionality and adaptations to support new sensors and algorithms. Software licenses are in use world-wide supporting researchers, companies and public authorities in their daily work.
The GAMMA software supports the entire processing chain from Synthetic Aperture Radar (SAR) raw data to end products such as digital elevation models, displacement maps and land use maps. The GAMMA Software includes several Modules, each one consisting of documented, well structured code. The software is a toolbox providing a wide functionality to support the users in the setting up different processing tasks. Programs can be run individually on the command line or they can be called from scripts that permit running processing sequences in a more automated and efficient way.
Software Modules
- Modular SAR Processor (MSP)
- Interferometry, Diff. Interferometry and Geocoding (ISP/DIFF&GEO)
- Land Application Tools (LAT)
- Interferometric Point Target Analysis (IPTA)
The SAR image co-registration and geocoding functionality is also available as a separate GEO package. Furthermore, a special motion compensation package (MOCOM) and a Time Domain Back Projection processor (TDBP) are available for advanced processing of airborne data.
Microwave Instruments
GAMMA designs, manufactures and sells microwave remote sensing instruments. Some of the instruments are available as commercial products (GPRI, L-Band SAR, ELBARA) others are developed under contracts, e.g. of the European Space Agency (SnowScat, WBScat).
To obtain more information or to get a quote please contact us.
GAMMA Portable Radar Interferometer (GPRI)
The GPRI uses a novel imaging approach with a rotating array of real-aperture antennas that permits covering a very large field of view. The GPRI is very mobile and can quickly be mounted in a new site as it can be operated from a tripod.
GAMMA L-Band Synthetic Aperture Radar
The GAMMA L-band SAR is a new compact and versatile SAR system, which supports interferometric, polarimetric, and polarimetric-interferometric SAR data acquisitions from agile sensor platforms (UAVs, automobiles).
Using two repeat-pass SAR images – or a longer time series of repeat-pass measurements – surface displacements in the line-of-sight (LOS) direction of the radar can be derived. Compared to the Ku-band GPRI the GAMMA L-band SAR system has complementary properties in terms of temporal decorrelation and sensitivity to the LOS surface displacements. SAR imaging and interferometric processing of the GAMMA L-band SAR data is supported by the Time Domain Back Projection (TDBP) processor and the InSAR processing modules ISP/DIFF&GEO of the GAMMA Software. First instruments were commercialized in 2019.
Instrument-specific Publications
SGM2020 Video Presentation on UAV/car-borne SAR displacement measurements
ELBARA-II
The ELBARA-II is a 1.4 GHz radiometer, built to support ground-based signature studies and cross-comparison campaigns related to the ESA SMOS and NASA SMAP satellite radiometers. A first series of instruments was built under ESA contract. Further instruments were then specifically built for interested customers from academia.
Microwave Instruments
GAMMA designs, manufactures and sells microwave remote sensing instruments. Some of the instruments are available as commercial products (GPRI, L-Band SAR, ELBARA) others are developed under contracts, e.g. of the European Space Agency (SnowScat, WBScat).
To obtain more information or to get a quote please contact us.
GAMMA Portable Radar Interferometer (GPRI)
The GPRI uses a novel imaging approach with a rotating array of real-aperture antennas that permits covering a very large field of view. The GPRI is very mobile and can quickly be mounted in a new site as it can be operated from a tripod. Measuring with high gain real-aperture antennas limits the signal noise and being affected by decorrelation during an aperture synthesis. Consequently, reliable measurements can be taken over several kilometers. At GAMMA we mainly use the GPRI to monitor potentially unstable slopes and rocks, but other applications as glacier velocity mapping and infrastructure applications are also well supported. The availability of two receive antennas with a spatial baseline permits measuring topographic heights. And operating the GPRI without azimuth rotation supports the monitoring of fast phenomena such as infrastructure deformation under load. First instruments were commercialized in 2010. Interferometric processing of the GPRI data is supported by the GAMMA Software.
GAMMA L-Band Synthetic Aperture Radar
The GAMMA L-band SAR is a new compact and versatile SAR system, which supports interferometric, polarimetric, and polarimetric-interferometric SAR data acquisitions from agile sensor platforms (UAVs, automobiles). Using two repeat-pass SAR images – or a longer time series of repeat-pass measurements – surface displacements in the line-of-sight (LOS) direction of the radar can be derived. Compared to the Ku-band GPRI the GAMMA L-band SAR system has complementary properties in terms of temporal decorrelation and sensitivity to the LOS surface displacements. SAR imaging and interferometric processing of the GAMMA L-band SAR data is supported by the Time Domain Back Projection (TDBP) processor and the InSAR processing modules ISP/DIFF&GEO of the GAMMA Software. First instruments were commercialized in 2019.
Instrument-specific Publications
SGM2020 Video Presentation on UAV/car-borne SAR displacement measurements
ELBARA-II
The ELBARA-II is a 1.4 GHz radiometer, built to support ground-based signature studies and cross-comparison campaigns related to the ESA SMOS and NASA SMAP satellite radiometers. A first series of instruments was built under ESA contract. Further instruments were then specifically built for interested customers from academia.