In this contribution,we study the models ofBDS/GPS combined in three different fields relative positioning,which contain......

This paper reviews the history and evolution of the relative positioning based on the un-differenced (UD) observation.Th......

Corresponding theoretical research has concluded that applying triple-frequencyobservation could performance of strength......

The principle of GNSS VRS (Virtual Reference Station) was discussed in the paper.The critical technologies of VRS,like v......