Analysis of signal-in-space range error for users of pseudolite system.

Aiming at the problem that the existing GNSS signal-in-space range error (SISRE) contribution factor is not applicable to the SISRE assessment of pseudolite systems, in order to assess the system-side performance of pseudolite systems, the contribution factor of the SISRE of pseudolites under different altitude conditions is given based on the definition of the SISRE, and the results of this paper show that unlike the GNSS system, the radial error of pseudolite has a smaller impact on the SISRE, and the tangent-plane error has a larger impact on the SISRE. Moreover, the error decomposition and calculation of the SISRE are carried out in this paper.