A contribution to multipath modeling and simulation for kinematic trajectories

Abstract

Over the last years, GNSS technology has been under continuous development and its applications as well. This progress is driven by the emergence of increasingly complex applications. One such trending application for GNSS technology is automated transportation, which expands the boundaries in terms of navigation safety. Since multipath is one of the most challenging errors which affect the position and integrity of a navigation system, research is required in this direction. The multipath topic is complex, since it is dependent on the satellite position in conjunction with the surroundings of the receiving antenna. Therefore, the multipath effects are different for a static user compared to a kinematic one. Environment properties may lead to one or many reflections, diffraction, or non-line-of-sight (NLOS) situations. The characterization of the errors due to multipath in the GNSS observations have been extensively studied since 1972. Nevertheless, most of the focus in this field of study has been towards static applications. This dissertation extends the current multipath research by simulation, characterization, and modeling of multipath errors for kinematic vehicles.