Abstract
The realization of a global terrestrial reference system can be based on a set of 10–15 fundamental stations whose motion is to be monitored using laser ranging to satellites (Lageos, Starlette) and to the moon, as well as Very Long Baseline Interferometry to intergalactic radio sources, probably supported by auxiliary observations such as gravity. The investigation of the underlying model of such a system is separated into the investigation of a reduction model, a functional model and a stochastic model. Emphasis is placed on the distinction between the kinematic and dynamic representation of the mutual motion of station and reflector points. Finally, the possible configuration of a network of about 15 fundamental stations as well as the instrumental package required for such stations is described.
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