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 b | 0.6 m RMS |
| DGPS | 0.45 m RMS |
| 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 | 20 Hz |
| Measurements: | |
| 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 | 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.
b.
c.Time accuracy does not include biases due to RF or antenna delay.
d.In accordance with export licensing.
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