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PX4 / PX4-Autopilot

PX4 Autopilot Software
https://px4.io
BSD 3-Clause "New" or "Revised" License
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GPS Drift #21322

Closed Cavalletta98 closed 1 year ago

Cavalletta98 commented 1 year ago

Hi,i'm using two drones with PX4 Autopilot fw v 1.13.2. One has Pixhawk4 and the other has Pix32 v5. I noticed that,if the drone Is standing on the ground( not armed) and i wait for some minutes, i see the drift of the position of the drone on QGControl. I mean,the position shows on QGControl Is far from the real position. This happen on both Flight controllers. What i can do for avoid that? Thanks

bresch commented 1 year ago

How far? Which GNSS modules are you using? It's expected to see some drift in the GNSS data, it isn't perfect.

Local disturbance such as a companion computer, a camera or a high-bandwidth data link (e.g.: video link) can also degrade the GNSS accuracy. You'll get quicker answers by asking them on the forum (http://discuss.px4.io) or on discord

Cavalletta98 commented 1 year ago

I didn't measured. Probably around 2/3 meters

bresch commented 1 year ago

Try to also check the metrics such as eph, P/H/VDOP, satellite count, jamming. Also note that the surrounding environment impacts the accuracy (e.g.: buildings, trees, ...)