Method for the transmission of navigation data to user terminals of a
satellite navigation system composed of navigation satellites and
pseudolites. The method includes transmitting positional information for
at least one of the pseudolites, as part of the navigation data, without
the use of separate channels or protocols for the transmission of the
positional information for the at least one pseudolite. The positional
information is transmitted in the form of a model of a pseudolite
trajectory in a reference coordinate system which the model accounts for
orbit-divergent motions of the at least one pseudolite, and the
positional information for the at least on pseudolite forms a part of the
navigation data.