A Methodology for Creating RTK Positioning Coverage Maps via a Radio Modem Link to CORS Stations

AbstractThe Andalusian Positioning Network (RAP) is a real-time kinematic (RTK) GPS-based network that covers the Autonomous Community of Andalusia (southern Spain) homogeneously and offers, amongst other services, radio modem-based differential corrections for accurate real-time positioning (RAP-RTK). The institutions responsible for permanent GPS networks do not currently provide information regarding the radio coverage of their stations. In this communication we therefore present a methodology for creating RTK positioning maps via a radio modem link to continuously operating reference stations (CORS). We have applied this methodology to the University of Jaen (UJAE)'s permanent GPS station and present, for the first time, two coverage maps for this service. One of these maps is based on field data and the other on a combination of field data and computerized applications that generate viewshed maps, thus offering relevant information regarding the areas where users can make use of this service. This ty...