I'm working on a deltawing model airplane where I want to implement a PID controller to stabilize the pitch, roll and yaw (which are only controlled by two elevons). However, I don't know too much about the subject. I only working once on a position control PID for a robot, but an aircraft is a bit more complicated. I figured out that I'd start with one rotation first, the pitch since it has the most disturbances during flight.
I figured out that I should first look at the system. The input would be a set point controlled by an external RC controller, which goes through the controller and plant and result into a rotation of the servo motors controlling the elevons. The elevons then give a pitch moment that should lead to the correct set point pitch angle.
So how do I go about designing a stabilizing PID controller for a system like this? Thanks for the help!