Undersøgelse af RTK teknikker - Danmarks Tekniske Universitet

Abstract iii
Abstract
The purpose of this project has been to test various RTK techniques. Three different RTK
methods have been put through different analysis. The project works with single station RTK,
network RTK using FKP corrections and network RTK using the VRS method.
In chapter one the basic theory regarding geographical navigation using satellite derived
phase measurements will be explained. Primary interest will be on RTK observations.
Chapter two goes through how and why the test has been designed as it has. The two
reference networks, GPS-referencen and GSNet, will be explained.
The different receivers will be briefly presented in chapter three. The project has had access to
the latest receivers from Leica and Trimble.
All the results from the test will be presented in chapter four. Every sub analysis will be
followed by a sub conclusion.
The final conclusion will be revealed in chapter five and six together with a suggestion of
future works as a spin off from this project.
The work with the different RTK techniques shows that the Leica single station RTK and
Trimble VRS are almost similar in performance. The FKP method that Leica uses for a
network solution shows that it is a beta version, with a considerably lager standard deviation
than the others.