RTK Networks – What, Why, Where? - GPS: The Global ...
RTK Networks ? What, Why, Where?
Speaker: Eric Gakstatter egakstatter@ Presented September 22, 2009
USSLS/CGSIC Meeting Savannah, GA
Background (1)
RTK (Real-Time Kinematic) ? a proven method of positioning in real-time at the cm-level. Invented in the early 1990's. RTK makes GPS/GNSS a very efficient tool for some tasks such as construction staking, machine control, topographic surveys and many others where precise real-time positioning is valuable.
Traditional RTK is a single-baseline solution between a base station and a rover unit.
Background (2)
Critical components for successful RTK operations: RTK-capable GPS/GNSS receiver Lots of satellite observables. Solid, reliable communication between base and rover.
Background (3)
By the late 1990's, RTK became a reliable, mainstream technology for surveying and construction.
The CORS (Continually Operating Reference Station) concept was growing.
Users were individually buying a lot of reference stations to support their RTK operations and most were operating in metropolitan areas.
RTK Clusters
?An RTK Cluster is a group of strategically spaced reference stations designed to provide single-baseline RTK coverage within a certain area.
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