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About telemetry of drone

iucaaa

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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"
 
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.
 
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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
 
Tello uses several sources for altitude calculation:

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