A20 User Manual
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simultaneously. This moment, one polygon is formed by these receivers. After the first
surveying time is over, move these receivers to other points doing the same surveying job
(another polygon is formed by the second time surveying) but make sure that the two
polygons should have common side. The whole GPS network is formed by these polygons.
6.4.4
Shapes of GPS Network
Depend on different applications, shapes of GPS network can be divided into several types:
Radial network, Point connecting network, Side connecting network, Polygon connecting
network and Mixed connecting network.
Radial network
Radial network is a simple geomatic figure, but it is not
easy to check the accuracy because all the sides of that
network are not closed. The advantages for this type is:
only need 2 receivers, which is regarded as an easy-working,
fast-tracking way. It is widely used in low precision
engineering surveying, cadastra survey, mapping and so on.
fixing on points to do the static surveying for a certain while (usually 40-60 minutes)
need
to have many professional knowledge. Detailed way is, using 3 or more receivers
It is suitable for level C and D survey.
