The working group is engaged in two main topics:
Since mid-1980s the working group examines the behavior during the generation and dissemination of high precise time references and time scales in the frame of satellite navigation. Another aspect is the development and operations of methods and facilities to validate performance parameters of satellite navigation systems but also of individual applications. For all those timing aspects, a laboratory with precise atomic clocks and dedicated measurement equipment has been provided. In-house simulators based on software and on hardware as well, are being used for time-related investigations.
Additionally, the central timing facility is being operated to synchronize all time-sensitive elements in the ground-based Galileo test environment in Berchtesgaden (GATE).
The second focal point of the working group the core element is the 30m high gain antenna (HGA) which is located in the DLR ground station in Weilheim. This antenna is being operated by the GSOC and used by the group for the verification of signals from navigation satellite systems. In 2005 the Institute of Communications and Navigation equipped the HGA with an ultramodern measurement system. Since the modernization the working group permanently analyzes satellite from global navigation systems like GPS, GLONASS und COMPASS. The institute supports the development and installation of the European satellite navigation system Galileo.
The working areas: