Using differential carrier phase GPS to control automated vehicles
Timothy Nguyen, James W. Sinko, R C Galijan · 2002
Results are presented of laboratory and field experiments conducted to demonstrate the feasibility of using differential carrier phase Global Positioning System (GPS) measurements to control automated vehicles. Centimeter-level location accuracies are shown under static and dynamic conditions for scale-model and full-size vehicles. Techniques for single- and dual-frequency carrier cycle ambiguity resolution are discussed. The utility of this work is in the development of advanced interactive cruise control (AICC) systems with roadway-departure warnings and lane-keeping capabilities, and automated highway systems (AHS). Support requirements such as real-time datalinks, accurate road databases, and redundant sensors are discussed.