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Appendix A
A.1 Smart-AG Receiver Performance
Position Accuracy
Time To First Fix
Reacquisition
Data Rates
Time Accuracy
Velocity Accuracy
Measurement Precision
Dynamics
a.
Typical values. Performance specifications are subject to GPS system characteristics, U.S. DOD operational degradation,
ionospheric and tropospheric conditions, satellite geometry, baseline length and multipath effects.
b.
GPS-only
c.
Time accuracy does not include biases due to RF or antenna delay.
d.
In accordance with export licensing.
50
Technical Specifications
PERFORMANCE
(Subject To GPS System Characteristics)
a
Standalone:
L1
SBAS
DGPS
RT-20
Post Processed 5 mm + 1 ppm RMS
Hot: 35 s
Warm: 40 s
Cold: 65 s
0.5 s L1 (typical)
Raw
Measurements:
Computed
Position:
a c
20 ns RMS
0.03 m/s RMS
C/A code phase 6 cm RMS
L1 carrier phase:
Differential
Velocity
1.8 m RMS
b
0.6 m RMS
0.45 m RMS
0.20 m RMS
(Almanac and recent ephemeris saved and approximate position)
(Almanac, approximate position and time, no recent ephemeris)
(No almanac or ephemeris and no approximate position or time)
20 Hz
20 Hz
0.75 mm RMS
515 m/s
d
SMART-AG User Manual Rev 2
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