In this thesis, we have analysed the quality of the determination of points in a geodetic control network using three different methods, namely: GNSS static measurement, GNSS-RTK measurement and classical terrestrial measurement. The focus of the study was on comparing the accuracy and precision of the point position coordinates determined by the different measurements methods. The results show that classical terrestrial surveying based on points determined by static GNSS is the best choice for highprecision surveying tasks and achieves sub-millimetre accuracy. The static GNSS method also achieves accuracy in the millimetre range, but requires longer observation times and correct post-processing of the data. Therefore, both the static GNSS method and classical terrestrial surveying are time-consuming and are primarily recommended for smaller survey areas with short distances. The GNSS-RTK method is the fastest and most practical for field work but achieves only an accuracy in the centimetre range and is more sensitive to field conditions. The findings confirm that terrestrial surveying is the most suitable method for short distances, while the GNSS-RTK method provides lower position quality. Furthermore, the optimal choice of surveying method depends on the field conditions, the required accuracy and the available time. A combination of classical terrestrial and GNSS methods has proven to be best practise in geodetic surveying and ensures reliable and high quality results for further work.
|
