GJ - Privredna komora Srbije

Number of valid observations [%]
Število ustreznih meritev [%]
66,67
89,43
97,56
100
60,16
91,06
100
100
67,48
88,62
96,75
100
59,35
90,24
100
100
GMX1
100
τ = 3 (99,73%)
τ = 2 (95,45%)
80
τ = 1 (68,27%)
60
40
20
0
K
2 2
NAS
24 h
SAS
2
1
h
K
2 2
NAS
24 h
SAS
3
1
h
K
2 2
SAS
3 24 h
SAS
2
1
h
K
2 2
SAS
3 24 h
SAS
3
1
h
τ = 1 τ = 2 τ = 3 τ = 4
Figure 18: Results of preformed accuracy comparison for point GMX1 with different t values
When comparing the accuracy with procedures
SAS 2
and
SAS 3
, point GMX2 was an exception. The
comparison could not be carried out by any of the two procedures due to the lack of input data. Comparison
was made only on the basis of coordinate difference, between hourly and daily observations. The most
probable coordinates of hourly observations made in a single day were so determined by the help of
arithmetic mean. Coordinates were obtained by using equations:
n n n
Yi X
i
Hi
i1 i1 i1
Yizr ; X
izr
; Hizr
(31)
n n n
The results of absolute coordinate difference made between hourly and daily observations are shown in
Table 1. Coordinate difference does not exceed 2 mm or 0,002 m.
Coordinate difference
K
Table 3: Coordinate difference for GMX2
K
Y 24h
Y1h
K
K
X 24h
X 1h
K
K
H 24 h H1h
min max min max min max
K
K -0,0005 0,0006 -0,0008 0,0008 -0,0008 0,0006
24h
1h
316