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