6.4 GPS Network
6.4.1 Network Designing
1) The baselines should be closed. Single baseline is not accepted in the designing.
2) It is not right to say that the more the baselines, the better the results are. Three baselines
for one point is suitable for the reliability of network.
3) For getting the higher accuracy of the point, one point for two times surveying is suggested.
4) In order to convert GPS system to your local coordinate system, you should have at least
3 to 5 higher accuracy known point that are equally spread in the survey district for your
good coordinate converting. At the same time, if you want to get your good elevation of
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the surveying points, then you should have certain leveling points for your research on
the elevation of your surveying district.
5) Considering the convenience of static surveying, it is suggested for you to give your
points in the wild place where you are easy-going.