Hexagon VERIPOS INS, Руководство по вводу в эксплуатацию

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AB- V-MA-00650 01 February 2021
JF/RR 25
LD900 and INS
Commissioning Guide
Appendix B - IMU Performance
The below tables show the impact of a GNSS outage on a fully converged PPP position, highlighting different
outage durations and the corresponding drift in accuracy values.
IMU-ISA-100C
– GNSS Outage Performance
Outage
Duration (Secs)
Position Accuracy
(M) RMS
Velocity Accuracy
(M/S)
Attitude Accuracy
(Degrees) RMS
Horizontal Vertical Horizontal Vertical Roll Pitch Heading
0 0.06 0.15 0.008 0.008 0.006 0.006 0.010
10 0.12 0.20 0.013 0.013 0.008 0.008 0.013
60 0.96 0.65 0.048 0.023 0.009 0.009 0.018
IMU-µIMU-IC
– GNSS Outage Performance
Outage
Duration (Secs)
Position Accuracy
(M) RMS
Velocity Accuracy
(M/S)
Attitude Accuracy
(Degrees) RMS
Horizontal Vertical Horizontal Vertical Roll Pitch Heading
0 0.06 0.15 0.015 0.010 0.010 0.010 0.030
10 0.16 0.23 0.035 0.015 0.017 0.017 0.038
60 3.56 0.90 0.165 0.022 0.025 0.025 0.050
IMU-ISA-100C & IMU-µIMU-IC - Heave
The table below shows the Heave performance for three scenarios, applicable to both models of IMU.
Scenario
Heave Performance
cm %
Instantaneous Heave 5 5%
Delayed Heave 3.5 3.5%
Post-Processed Heave 2.5 2.5%