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Satellite communications takes a pioneering role in the introduction and enabling of many communication services. It became the initial enabler of transcontinental telephony. It is widely used for television broadcasting, and has significantly contributed to the introduction of digital television. Today, Very Small Aperture Terminals (VSAT) are widely used to network company premises and to backup terrestrial connections. In all of these applications, the terminals are essentially fixed. However, an increasing number of mobile applications is emerging as well, from broadcasting, through telephony to messaging.
Optical Free-Space Communications
The topic of optical free-space communications evolved as early as the development of the laser in the 1960s. After the invention of optical fiber its application was mainly expected in space, where it shows its main advantages such as low weigh and small size terminal, large bandwidth and low power consumption.
The Aeronautical Communications Group designs and evaluates digital wireless communications systems for civil aviation. These systems are designated for the following application areas: Air-Traffic Control (ATC), Air-Traffic Management (ATM), Airline Operational Control (AOC) as well as command and control of Unmanned Aerial Systems (UAS) and their integration into civil airspace.
Satellite navigation works pretty well in the open field. In other outdoor environments the performance of satellite navigation may suffer from degradation due to multipath and shadowing. This holds especially in urban canyons. In indoor environments satellite navigation may even fail due to large attenuation and blockage of signals. In order to enable navigation also in these environments other sensors are being considered.
In the global deal, concluded on December 6th, 2005, the concessionaire consortium agreed that Oberpfaffenhofen will host a Galileo Control Center (GCC) and a Performance Evaluation Center (PEC). This - together with the strong Galileo activities in Bavaria and Germany in general - is the context for the Institute’s activities.
Large Scale Facilities
Transportable Optische Bodenstation (TOGS)
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