Considerations on Advanced GNSS Data Processing Techniques

The development of GNSS permanent stations networks at national or regional level has led to the need to integrate them into European and international networks. This involves calculating the coordinates of GNSS antennas in ETRF and ITRF systems with high precision, and this can only be achieved by performing observation compensation calculations with scientific GNSS data processing software. In this context, the certification of the coordinates of the antennas of the stations in the National GNSS Network by the European specialized forum, at EUREF – EPN, represents the last step to be taken, in order to fully integrate the Romanian Position Determination System – ROMPOS into the European network.