Performance comparison of different control techniques on unmanned aerial vehicles

For today?s developing technology autonomous unmanned aerial vehicles have very high accelaration of popularity foremostly in defence industry. The biggest rate of market in unmanned aerial vehicles is undoubtly defence industry studies. In this thesis, performance comparision of different control techniques on unmanned aerial vehicles is investigated. The control techniques are applied to a quadrotor type unmanned aerial vehicle that has nonlinear and some coupled states. The dynamic model derived from Newton Euler method is used and model coefficient are thought applicable. Firstly, the rotary inverted pendulum system that resembles to quadrotor is investigated. Some linear and nonlinear control techniques are studied on rotary inverted pendulum and due to this study developed algortihms are the preliminary study for control of quadrotor. For quadrotor system, Sliding mode control, Proportional integral derivative control, Backstepping control, Reinforcement learning control, Feedback linearization control and Dynamic inversion control are applied respectively. Trajectory tracking performance, enforceability of control signal and the conformity of transient response are examined and due to mean squared error a comparative assessment is handled. The aformentioned control techniques are applied by simulation to the systems