SMART7 Performance Specifications
All specifications subject to GNSS system characteristics.
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Horizontal Position Accuracy1 |
|
RMS |
95% |
|
|
Single Point L1/L2 |
1.2 m |
2.4 m |
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|
SBAS2 |
0.6 m |
1.2 m |
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|
DGPS |
0.4 m |
0.8 m |
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|
TerraStar‑L3 |
40 cm |
50 cm |
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|
TerraStar-C PRO3 |
2.0 cm |
2.5 cm |
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|
TerraStar-X3 |
2.0 cm |
2.5 cm |
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|
RTK |
1 cm + 1 ppm |
2.5 cm + 1 ppm |
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|
Pass to Pass Accuracy2 |
|
RMS |
95% |
|
|
Single Point L1/L2 GLIDE4 |
- |
35 cm |
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|
TerraStar-L3 |
- |
15 cm |
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|
TerraStar-C PRO3 |
- |
2.0 cm |
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|
RTK |
1 cm + 1 ppm |
2.5 cm + 1 ppm |
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|
Measurement Precision (RMS)5 |
|
Code |
Carrier |
|
|
GPS |
L1 C/A |
4 cm |
0.5 mm |
|
|
L2 P(Y) |
8 cm |
1.0 mm |
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|
L2C |
8 cm |
1.0 mm |
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|
GLONASS |
L1 C/A |
15 cm |
1.5 mm |
|
|
L2 P |
8 cm |
1.5 mm |
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|
L2 C/A |
8 cm |
1.5 mm |
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|
Galileo |
E1 |
3 cm |
0.5 mm |
|
|
E5a |
3 cm |
0.75 mm |
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|
E5b |
3 cm |
0.75 mm |
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|
E5 AltBoc |
3 cm |
0.75 mm |
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|
BeiDou |
B1I |
4 cm |
0.5 mm |
|
|
B1C |
3 cm |
0.5 mm |
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|
B2I |
4 cm |
0.5 mm |
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|
B2a |
3 cm |
0.5 mm |
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|
B2b6 |
3 cm |
0.5 mm |
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|
Signals Tracked |
GPS |
L1 C/A, L2P, L2C |
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|
GPS (optional) |
L1C, L5 |
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|
GLONASS |
L1 C/A, L2 C/A, L2P |
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|
GLONASS (optional) |
L3 CDMA |
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|
BeiDou (optional) |
B1I, B1C, B2I, B2a, B2b |
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|
Galileo (optional) |
E1, E5 AltBOC, E5a, E5b |
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|
SBAS |
L1 |
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|
SBAS (optional) |
L5 |
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|
QZSS |
L1 C/A, L2C |
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|
QZSS (optional) |
L1C, L5 |
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|
L-Band |
Up to 5 channels7 |
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|
Maximum Data Rate |
Measurements Position |
up to 20 Hz up to 20 Hz |
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|
Time to First Fix |
Hot: <20 s typical (Almanac and recent ephemeris saved and approximate position and time entered) Cold: <34 s typical (No almanac or ephemeris and no approximate position or time) |
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|
Signal Reacquisition |
L1 |
0.5 s typical |
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|
L2 |
<1.0 s typical |
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|
Time Accuracy8 |
20 ns RMS |
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|
Velocity Accuracy9 |
<0.03 m/s RMS |
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The IMU performance specifications apply to the SMART7-S and SMART7-SI only.
|
Gyroscope Performance |
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|
Technology |
MEMS |
|
|
Dynamic range |
150 °/second |
|
|
Bias instability |
3.5 °/hour |
|
|
Angular random walk |
0.1 °/√hour |
|
|
Accelerometer Performance |
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|
Technology |
MEMS |
|
|
Dynamic range |
5 g |
|
|
Bias instability |
0.1 mg |
|
|
Velocity random walk |
0.05 m/s/√hour |
|
|
Attitude Accuracy |
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|
|
RMS |
95% |
|
Roll |
0.03 |
0.06 |
|
Pitch |
0.03 |
0.06 |
|
Heading |
0.1 |
0.5 |
The bias instability, angular random walk and velocity random walk specifications are from room temperature Allan variance method.