參數(shù)資料
型號(hào)： GP2000
廠商： Mitel Networks Corporation
英文描述： ()
中文描述： （）
文件頁(yè)數(shù)： 15/25頁(yè)
文件大小： 256K
代理商： GP2000
22
GP2000 – GPS CHIPSET DESIGNER’S GUIDE
STATIC NAVIGATION
The GPS Architect Global Positioning Development System
has been developed from GPS Builder-2, a PC-based GPS
development system (no longer available). Two GPS Builder-2
systems have been tested side-by-side to illustrate the improved
accuracy in position fixes that results from using a 12-channel
receiver rather than a 4-channel receiver.
Fig. 27 shows a GPS Builder-2 position fix scatter plot where
10 satellites are included in the solution. Fig. 28 shows position
fixes over the same period but for a GPS Builder-2 system using
only the ‘best’ 4 satellites. A comparison of these plots clearly
demonstrates the benefit to position fix accuracy of ‘a(chǎn)ll-in-view’
used by GPS Architect.
Fig. 29 shows the sort of position fix accuracy that can be
achieved when S/A is inactive (no DGPS corrections applied).
Fig. 30 shows the number of satellites tracked during this period.
Fig. 27 Static navigation using GPS Builder-2, 12 channels,
S/A active
Fig. 28 Static navigation using GPS Builder-2, 4 channels,
S/A active
Fig. 29 Static navigation, S/A inactive
–100
GPS BUILDER-2
10 : 17 : 33 11 APRIL 1995
2968 POINTS AT 1 PER SECOND
LONGITUDE
σ = 10m
LATITUDE
σ = 19m
10 SATELLITES IN SOLUTION
–80
–60
–40
–20
–40
–60
–80
–100
100
80
60
40
20
40
60
80
100
LATITUDE
ERROR
(m)
LONGITUDE
ERROR
(m)
–100
GPS BUILDER-2
15 : 45 : 25 21 SEPTEMBER 1994
3686 POINTS AT 1 PER 15 SECS
LONGITUDE
σ = 5m
LATITUDE
σ = 8m
–80
–60
–40
–20
–40
–60
–80
–100
100
80
60
40
20
40
60
80
100
LATITUDE
ERROR
(m)
LONGITUDE
ERROR
(m)
–100
GPS BUILDER-2
10 : 16 : 22 11 APRIL 1995
2987 POINTS AT 1 PER SECOND
LONGITUDE
σ = 21m
LATITUDE
σ = 23m
BEST 4 SATELLITES IN SOLUTION
–80
–60
–40
–20
–40
–60
–80
–100
100
80
60
40
20
40
60
80
100
LATITUDE
ERROR
(m)
LONGITUDE
ERROR
(m)
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