VRS
VRS (Virtual Reference Station) is a system composed of hardware and software designed to facilitate real-time GPS/GNSS positioning based on a set of reference stations. ODOT utilizes its CORS (Continuously Operating Reference Station) network to perform the role of the reference stations. The VRS system relies on Trimble’s RTKNet software which is the operational component that generates a modeled solution. One primary benefit of VRS is that you don’t need a separate GPS base station and someone to guard it in order to perform RTK positioning across the state. Using VRS, the CORS network acts essentially as a continuous reference station within the entire network. This allows RTK (Real Time Kinematic) positioning using a single (properly configured) rover in the field.