Abstract

GPS/GNSS Technology Update
Track: Mobile GIS
Authors: Eric Gakstatter

ArcGIS Mobile users around the world are challenged to keep current with evolving satellite systems. There are new GPS satellites being launched with new GPS signals being broadcast (L5). The Russian GLONASS system is near operational and Europe has launched its first two Galileo satellites.

Not only are the satellite systems changing but also GPS augmentation systems such as WAAS, DGPS, EGNOS, MSAS and GAGAN systems. ArcGIS Mobile users take advantage of these GPS/GNSS augmentation systems and should be aware of how they are evolving.

The LightSquared controversy is still a major threat to GPS/GNSS users. How might that affect the future of GPS/GNSS mapping/surveying?

How do these changes affect spatial data collection and navigation services within ArcGIS Mobile? Which factors should one consider when using these different satellite systems. What are the current trends and developments that one should consider when preparing GPS/GNSS mapping hardware budgets?