Leica Geosystems GPS Basics - Manual (Page 43)

43
GPS Basics -1.0.0en Surveying with GPS
1 4 5 3 2
1 4 5 3 2
The network 1,2,3,4,5
has to be measured
from Reference
station R with three
GPS receivers.
The reference station
is set up. One Rover
occupies point 1
whilst the other
occupies point 3.
After the required
length of time, one
Rover moves to point
2 whilst the other
moves to point 4.
Then, one Rover can
return to the office
whilst the other
measures point 5.
The end result is as
above. On a subse-
quent day, the opera-
tion will be repeated
in order to check for
gross errors.
Alternatively...
Reference stations
are set up at R and
point 1. The Rover
occupies point 2.
After the required
length of time, the
Rover moves to point
3.
Similarly, the Rover
then progresses to
point 4...
...and then point 5. The end result is a
measured network
with built-in redun-
dancy.