Global Positioning System Reference
In-Depth Information
Real Accuracy - % of total fixes
100
90
80
70
60
50
40
30
20
10
0
0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00
Positioning accuracy (m)
%-Unfiltered %-5m %-2m %-1m
Fig. 18. Results obtained in classrooms, amphitheatre and hall
Real Accuracy - % of total fixes
100
90
80
70
60
50
40
30
20
10
0
0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00
Positioning accuracy (m)
TSP-65 TSP-80 TORINO
Fig. 19. Summary of all the results
4.4 The main limitations
Synchronisation, absence of near-far effect and implementation of a differential approach
are the main competitive advantages of repeaters over pseudolites. Unfortunately, they go
with a few disadvantages, described below.
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