Which calibration process selects two FPs that are both tracking the correlated track, and then calculates computational uncertainty of the calibration process?

• A. Azimuth calibration
• B. Elevation calibration
• C. Range calibration
• D. Time synchronization calibration

Answer: (A)

Calibrating the horizontal angle measurement uses data from two trackers observing the same target to estimate how much the computed azimuth could be off. When you select two FPs that are both tracking the same correlated track, you get two independent observations of the target’s horizontal angle. By comparing these observations and how they relate to the known geometry, you can solve for any biases in the azimuth channel and quantify the uncertainty introduced by the calibration process itself. This approach directly targets the accuracy and precision of horizontal angle measurements, which is exactly what azimuth calibration aims to correct.

Elevating or range calibrations deal with vertical angle or distance respectively, and time synchronization focuses on aligning clocks between systems—none of these rely on using two tracking observations of the same target to the same extent for estimating the processing uncertainty in the same way.