Missing Antenna Calibration

In LP360 Drone, while attempting to process the sensor trajectory solution for a TrueView 3DIS or microdrones payload, the user encounters a warning message stating, "Missing Antenna Calibration Confirmation"

This warning indicates that LP360 does not have the antenna calibration parameters in its database, it will not apply any calibration. The APC (antenna phase center) will be used as a reference instead of the ARP (antenna reference point).

Probable Resolution #1:

Press "Yes", submit the processing. In this case, we will not apply the antenna calibration, which means that our LAS generated will have a small bias. When comparing the control points to LAS, you may see a constant high difference between 3 to10cm in all the points. This bias is mainly the APC to ARP distance that we did not apply in trajectory processing.

Probable Resolution #2:

Compensate for the distance between the APC to ARP in the antenna height. How to do it?

1. Find your antenna calibration. You can find the antenna calibration at:
https://geodesy.noaa.gov/ANTCAL/#

2. Go to trajectory processing --> Base station dialog

3. Add the difference in Z to the antenna height

4. Submit the trajectory processing job --> The LAS generated will have the APC to ARP difference in Z compensated.

Probable Resolution #3:

Contact Geocue support to add the antenna to our antenna calibration database. It will be added in the next release of LP360.