Influence of the inhomogeneous troposphere on GNSS positioning and integer ambiguity resolution

The tropospheric delay is one of many error sources that affect the Global Navigation Satellite System (GNSS) positioning solutions. The widely used troposphere models assume a homogeneous atmosphere so that only the zenith delay needs to be determined and is mapped through an elevation-dependent mapping function. This procedure is to reduce...

Assessing the performance of multi-GNSS PPP-RTK in the local area

The benefits of an increased number of global navigation satellite systems (GNSS) in space have been confirmed for the robustness and convergence time of standard precise point positioning (PPP) solutions, as well as improved accuracy when (most of) the ambiguities are fixed. Yet, it is still worthwhile to investigate fast and high-precision...

Preliminary analysis of the ionosphere-corrected PPP-RTK user performance.

Preliminary analysis of ionosphere-corrected PPP-RTK user performance

Assessment of ionospheric corrections for PPP-RTK using regional ionosphere modelling

This paper presents an analysis of the ionospheric corrections required to get a significant improvement in PPP-RTK performance. The main aim was to determine the improvement in the position precision and Time-To-First-Fix in the PPP-RTK user side using ionospheric corrections computed from a network. The study consists of two main steps. The...

Assessment of ionospheric corrections for PPP-RTK using S-system theory

Assessment of ionospheric corrections for PPP-RTK using regional ionosphere modeling (PPT)

Assessment of ionospheric corrections for PPP-RTK using regional ionosphere modelling