User's Manual

Galaxy G1 
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the original ground control network. Coincidence point generally should not be
less than three (should perform leveling conjunction when not enough) and
should be evenly distributed in the network in order to reliably determine the
transformation parameters between the GPS and Ground Networks.
3) The points of the GPS network coinciding with the leveling points should be
considered. Non-coincidence point should generally perform leveling conjunction
method (or methods of equivalent accuracy), or set a certain density leveling
conjunction point in the network, to provide information for the study of the
geoid.
4) In order to facilitate the observation and perform leveling conjunction, GPS
outlets should generally be located in unobscured and easy -to -reach places.
5) In order to facilitate the classical leveling conjunction or extension, emplace
near the outlet a good view orientation point, to establish leveling conjunction
direction. The distance between the point and the station should generally be
greater than 300 meters.
6) According to the different purpose of GPS measurements, the independent
observations edge of GPS network should be certain geometry. The basic forms
of the graph are as follows: triangular network, ring network, stellate network.
§ 3.2 RTK operations (Radio mode)
Real-time dynamic measurements, referred to as RTK.
RTK technology is the real-time dynamic differential carrier phase positioning
technology, combining global satellite navigation and positioning technology
with data communication technology which includes base station and rover
station. Base station transmits the data by radio or network to the rover station,
which will perform differential analysis, thus providing real-time coordinates of