When I launch the mavros_posix_sitl.launch in px4, it always warns that:
"PositionTargetGlobal failed because no origin"
This leads to the inaccurate flight altitude of UAV in gazebo.
How to solve this problem? I have no idea.
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This is due to PX4's EKF2 not having an origin set when starting the SITL.
Throught the mavlink console (if you dont have one started, just execute PX4-Autopilot/Tools/mavlink_shell.py pointing to the correct port), you can set a specific origin using the commander set_ekf_origin command and specifying the latitude, longitude and altitude, which will remove the warnings.
Once set, you can also save that origin by saving and loading your parameters.
Noe-Sanchez
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How can I set the EKF origin if the commander (of PX4 v1.11.3) is not showing the function "set_ekf_origin"? – marc wellman Apr 23 '23 at 18:14