GAMMA Remote Sensing Research and Consulting AG (GAMMA) is a Swiss corporation (Aktiengesellschaft - AG) located near Bern, Switzerland. It was founded in January 1995 by Dr. Charles Werner and Dr. Urs Wegmüller.

Research and development, processing and adding value to remote sensing data, license sales for its commercial processing software, and EO-data distribution are GAMMA's primary business elements. GAMMA is both well integrated in the remote sensing research community, and offers commercial services and software licenses. This maintains GAMMA's technical competence and provides insight into customer requirements for information and tools.

The key personnel of GAMMA have extensive experience in scientific research, SAR and interferometric signal processing, active and passive microwave remote sensing techniques, theoretical and empirical modeling, and application development.
GAMMA's competence encompasses technical aspects such as SAR processing, interferometry, differential interferometry, geocoding, and mosaicing as well as fully integrated product generation from EO-data. Typical products are digital elevation models, geophysical displacement maps and landuse products (forest maps, hazard maps, etc.).

GAMMA provides licenses for its user-friendly and high quality software to support the entire processing from SAR raw data to products such as digital elevation models, deformation, and landuse maps. The software is grouped modular packages:

★Modular SAR Processor (MSP)

★Interferometric SAR Processor (ISP)

★Differential Interferometry and Geocoding (DIFF&GEO)

★Land Application Tools (LAT)
The software is written in ANSI-C and has been installed on different UNIX workstations and on PC platforms with LINUX or NT operation systems. Documentation is provided in HTML language. Both binary and source code licenses are available. Attractive discounts are offered for University / Education users.

Each of the packages is very modular. The offered alternatives and parameters read from the command line allow optimization of the processing for the specific case. Shell scripts permit running and documentation of processing sequences in an operational and efficient way. Full frame SAR processing times for ERS and JERS on today's workstations and PCs are well below one hour, including processing parameter estimation, autofocus, radiometric calibration, and multi-looking. The software processes data of spaceborne and airborne SAR, including ENVISAT-ASAR, ERS-1/2, JERS, RADARSAT, and SIR-C. It fully supports the data formats provided by the agencies. Advanced, up-to-date algorithms are used. The main processing sequences are complemented by parameter estimation and quality control programs. A complete suite of display programs and utilities based on open source technology are added for convenient access to the input data, intermediate products, and final results.

With its functionality, flexibility, robustness, efficiency, and competitive price, GAMMA software is an excellent solution for demanding processing jobs. This has been demonstrated by license sales to users at many leading institutes world-wide, since 1995. Another distinct advantage of the GAMMA software is the competent user support provided directly by the developers and experienced users of the software.

Recent software developments includes: full functionality on workstations (UNIX) and PCs (LINUX, NT), use of faster FFT routines to further reduce processing times, improved display tools using GTK with full portability to PCs (LINUX and NT). The functionality, flexibility, and accuracy of the offset estimation programs was further enhanced to allow coherence and feature tracking for monitoring of fast glacier motion and large seismic displacements.

More detailed information on the software may be found at GAMMA's homepage.