About telemetry of drone

[iucaaa]

Hi everyone
I have a dubt about of indication of the height in the telemetry of an APR, it's refers to a "medium sea level" or at the "take-off point level"

 

[Alex dronie]

This is a complex question. The answer is the height of the drome from the object just below it, which is why the drone can fly over objects at a constant altitude instead of adjusting to a fixed altitude. In simpler terms, the tello mantains altitude and the number is from tge nearest reference point.

 

[iucaaa]

This is a complex question. The answer is the height of the drome from the object just below it, which is why the drone can fly over objects at a constant altitude instead of adjusting to a fixed altitude. In simpler terms, the tello mantains altitude and the number is from tge nearest reference point.

Thank you very much for your reply

 

[volate!lo]

Tello uses several sources for altitude calculation:

Altitude above ground (IR sensor, up to 15m IIRC)
Barometer (raw and compensated air pressure)
IMU
VPS