Real-time kinematic positioning of UAS- possibilities and restrictions
2016
A pair of RTK capable GNSS receivers (Emlid Reach) and related software (RTKLIB)
are used in order to get better position estimates for UAS (unmanned aircraft
system) applications. Necessary correction data are either sent in real-time between
the receivers through a network realized by two Raspberry Pis or downloaded after
a flight for post-processing. Performed test on the ground show an accuracy and
precision of a few centimetres when raw data was post-processed.
Ground based tests were performed with a professional grade RTK receiver as reference
or with the tested receiver moving in a known pattern. The used software
reports good results in for flight tests but that has not been verified due to lack
of a moving reference. A simple application for UAS and RTK was achieved and
demonstrated.
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