Analysis for precision GPS levelling
In order to assess the near field effects on the height component determined from static GPS field experiments, different antenna mounts and antenna were tested using different cut-off angles (5°, 8°, 15°). Fig. (1) shows the different mounts: (a) steal plate with Zeiss-tribranch, (b) Stativteller with Zeiss-Dreifuß, and (c) a adapation for the direct height determination with a levelling rod with Wild (LVG Sachsen-Anhalt).
These studies were financed by a donation from the Ernst-Simons-Stiftung to F. Dilßner and carried out in close cooperation with Geo++.