Controller design and simulation for a helicopter during target engagement

Avcıoğlu, Sevil
The aim of this thesis is to design a controller for an unmanned helicopter to perform target engagement. This mission is briefly defined as; the helicopter flies to a firing point under the commands of a trajectory controller, and then it is aligned to the target with attitude control. After weapon firing, the helicopter initiates a return maneuver under again the commands of the trajectory controller. This mission where the continuous systems and discrete guidance decisions are to be executed in coherence can be studied as a hybrid control problem. One hybrid control approach which is used in this study is the representation based on two motion primitives: trim trajectories and maneuvers. To obtain the desired trim trajectories and the maneuvers, a dynamic inversion based controller is developed. The controller has two loops: the inner loop which controls the helicopter attitudes and the outer loop which controls the helicopter trajectory. A guidance algorithm is developed which enables the controller to switch from the inner loop to the outer loop or vice versa. Simulations are generated to test the controller performance.


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Citation Formats
S. Avcıoğlu, “Controller design and simulation for a helicopter during target engagement,” M.S. - Master of Science, Middle East Technical University, 2011.