GNSS/GPS Receivers
Global Navigation Satellite System (GNSS) receivers sense incoming signals from the USA’s Global Positioning System (GPS) satellites and other constellations (GLONASS, Galileo, BeiDou, etc.). With signals from four or more satellites, the receivers use trilateration to determine a position.
Static GNSS/GPS
Some GNSS receivers are designed for long-term or permanent installation at a single (static) location. With appropriate data durations, data processing, and instrument monumentation, the positions from these receivers can be used to determine mm-scale 3D velocities and potentially a variety of other products related to site and atmospheric conditions.
Kinematic GNSS/GPS
Other receivers are designed for mobile (kinematic) surveying. A mobile “rover” receiver receives location corrections from a local base station via a radio or cellular connection so that the accuracy can be increased from meters to centimeters of uncertainty. The rovers are typically deployed on survey poles, whereas the base station is on a tripod over a known point.
EarthScope has kinematic GNSS receivers available for both research and educational uses.
