Differential Satellite Positioning Accuracy for LBS: A Zagreb Case Study

The importance of differential satellite positioning has been intensively questioned in recent times, especially after ceasing of the selective availability (SA) in standard GPS positioning service. Almost without exception, experimental studies have confirmed the improvement in satellite positioning given by differential corrections still exists. In this article, the improvement of LBS positioning accuracy obtained by differential satellite positioning is discussed, based on experimental data analysis. Differential GPS positioning accuracy is discussed in relation to satisfaction of LBS positioning accuracy requirements and comparision with standard GPS positioning. While the implementation of differential GPS positioning still does not lead to satisfaction of the high-level LBS positioning performance requirements, it still improves and stabilises standard-level LBS positioning accuracy.