Preliminary results of the ASG-EUPOS processing in the context of EPN densification and system monitoring

摘要

The paper presents preliminary results of data from Polish satellite network (the ASG-EUPOS - Active Geodetic Network - European Positioning System) elaboration. Standard processing procedures introduced daily and weekly solutions (North, East, Up components) for more than 100 Polish and foreign sites. Based on weekly solutions velocities and vertical movements were determined as the beginning for further investigations with longer data span. Helmert transformation parameters were computed using two different tools. To estimate stations' proper activity and quality of solutions, standard deviation of daily and weekly time series was calculated. The purpose of the tests was to set up the foundation for further investigations (official densification of the European Permanent Network - EPN) and to establish coordinates for ASG-EUPOS sites coherent with classic geodetic network.