The Development of a GPS/Pseudolite Positioning System for Vehicle Tracking at BHP Steel, Port Kembla Steelworks

The Satellite Navigation and Positioning (SNAP) group at The University of New South Wales (UNSW) has been actively conducting research into high precision kinematic GPS, alone and in combination with pseudolites, for the past eight years and two years respectively. This has led to the development of innovative carrier phase single-epoch ambiguity resolution procedures, and software programs that can process GPS and pseudolite data. This paper assesses the performance of these procedures, as well as pseudolite-only kinematc positioning. Results are presented of trials at BHP Port Kembla Steelworks in Australia, where ultimately the high-precision (cm-level) indoor and outdoor positioning system will be used in the tracking of vehicles.