The global provision of broadband Internet access is a major challenge. Outside urban areas, current coverage is unsatisfactory even in Europe, but further expansion of terrestrial networks is increasingly uneconomical. Solutions are being sought worldwide. Constellations of several hundred or thousand satellites are receiving the most attention. Also in aviation and maritime transport, the digitization of radio systems offers great potential that needs to be developed. Here, the introduction of a standard developed under the leadership of DLR is approaching. In satellite-based earth observation, the volume of data now exceeds the capacity of radio transmission systems. Standardized optical methods promise a solution here.
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