Network- Based Techniques for RTK Applications

The accuracy of today’s RTK is limited by the distance dependent errors from orbit, ionosphere and troposphere as well as station dependent influences like multipath and antenna phase center variations. The basic idea of Geo++ GNSMART (GNSS − State Monitoring And Representation Technique) is to analyze the data from a reference station network to estimate and represent the state of individual components of the GPS error budget in real−time.