2.2 Control loop
The control system on the hexarotor is divided into an inner and an outer loop.
The inner loop controls the attitude and height while the outer loop controls
the position.
The position is controlled by sending reference values to the inner
controller. The outer loop could either be a pilot with a radio controller flying
in stabilized mode or a control system running on board. The task of the outer
loop could either be to maintain a hover position or following way points from a
navigation system.