terrain following in fixed-wing mode

[xdwgood]

Describe problem solved by the proposed feature

Currently PX4 does not support terrain following in fixed-wing mode? Does anyone know what I should do to support terrain following in fixed-wing mode? thank you

Describe your preferred solution

no

Describe possible alternatives

no

Additional context

No response

[saengphet]

Hi @xdwgood

Did you mean something similar to these images? If so, you can set it up in the QGC, but you must enter the climb/descent rate that corresponds to your UAV performance.

[Jaeyoung-Lim]

@xdwgood Due to the dynamic constraints of fixed-wing vehicles, terrain following is not that trivial.

Therefore, I have implemented a terrain navigation method, which maintains a certain distance to the terrain.

You can find the repository here: https://github.com/ethz-asl/terrain-navigation

[xdwgood]

@saengphet
I want to achieve is that the fixed-wing flight automatically adjusts the flight altitude according to the terrain height measured by downwards lidar.

[xdwgood]

@Jaeyoung-Lim Thanks! I'll have a look.