Method and apparatus for generating a parameterization of satellites orbits and / or satellite clocks corrections of a satellite

摘要

The invention relates to a method for generating a sufficiently smooth and very flexible parameterization of satellites orbits and / or satellite clocks corrections of a satellite. For the description of the or of the satellites orbits and / or the satellite clocks corrections is a first progressive system differentiable functions (first function system) with a high degree of approximation and a long range of action is provided. The basis of the first function system parameterized satellite orbits and / or satellite clocks corrections can be of a bottom computer unit to one or more satellites and then to a user equipment is transmitted or, however, the transmission takes place without use of the space - segment only over a bottom infrastructure.In addition, a second progressive system (second function system) at least a continuous functions with a moderate approximation and a very short range of action are provided, which, in particular by the user terminal, a conversion to the first function system permits. As a result, the time until the first navigation information is available, i.e. the time to first fixed, is considerably shortened.