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5 Setting up the Receiver
52 SPSx51 Modular GPS Receivers User Guide
The Moving Baseline RTK positioning technique
In most RTK applications, the reference receiver remains stationary at a known
location and the rover receiver can move. However, Moving Baseline RTK is an RTK
positioning technique in which both reference and rover receivers can move about.
Moving Baseline RTK is useful for GPS applications that require vessel orientation.
Figure 5.6 Vessel heading from Moving Baseline RTK
With Moving Baseline RTK, the reference receiver broadcasts Compact Measurement
Record (CMR) data, while the rover receiver performs a synchronized baseline solution
at 10 Hz. The resultant baseline solution has centimeter-level accuracy. To increase the
accuracy of the absolute location of the two antennas, the Moving Reference receiver
can use differential corrections from a static source, such as a shore-based reference
station.
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Antenna
Antenna