摘要: This chapter describes the data and GPS processing strategies used to evaluate efficiency of signal-to-noise ratio (SNR)-based observation weighting residual-based temporal correlation modelling, which will be presented in Chaps. 5 7, respectively. In addition representative measurements, freely available surface meteorological are incorporated, enabling a physically reasonable interpretation results. Section 4.1 gives an overview selected sites, along with baselines formed for case studies relative positioning. After that, Sects. 4.2 4.3 offer more detailed information about characteristics applied positioning precise point (PPP). The analysed using Bernese Software 5.0, where deeper insights into algorithms provided by Dach et al. (2007a).