Appendix A Installation, Configuration and Calibration of GPS Dead Reckoning
53
Step 18. Verify the wiring connection:
a. From the left side window, select UBX > NAV >EKFSTATUS.
b. Verify that the Direction change when in reverse gear
c. Verify that the gyro reading shows readings around 33000
d. Drive few hundred yards and verify speed ticks reading.
Note:
To calibrate the GPS, refer to “Automatic Calibration” on page 54.
Step 19. To verify calibration, view the percentage values on the below screen. When
clearing calibration (see Step 17), the screen should show 0.00% (click on Poll icon
for the updated value). After a successful calibration, the percentage value
should show 80% or higher.
Step 20. Before loading the user application, set the unit for NMEA messages as follows:
From the left window pane, select
UBX > CFG (Config) >EKF (EKF Settings)
. Set
the “Protocol out” to NMEA only unless your application can filter out the UBX
commands. The baud rate should match your application requirements. click the
button to save.
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