RTK (Real-Time Kinematic) is a satellite navigation technique that is commonly used in land surveying and construction applications to provide highly accurate and precise positioning data. RTK works by using a fixed base station that is set up at a known location and a mobile rover unit that is carried by the surveyor or construction worker to various locations on the site.
The base station receives signals from multiple satellite constellations and calculates its precise position, which is then transmitted to the rover unit in real-time. The rover unit receives the signal from the base station and combines it with the signals it receives directly from the satellites to calculate its own position. By comparing the two sets of data, the rover can determine its position to within a few centimeters of accuracy.
RTK is often used to precisely stake out building footprints, utility lines, and other site features. For example, a surveyor can use RTK to lay out the precise location of building corners or to locate the position of underground utilities before excavation work begins.
RTK can be implemented using a variety of hardware and software systems, including dedicated RTK receivers and software packages that can be run on a mobile device. RTK systems can also be integrated with other surveying tools and technologies, such as total stations and laser scanners, to provide a more comprehensive and accurate picture of the site.
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