Modeling and Active Disturbance Rejection Controller Design for Longitudinal Attitude of a Tail-sitter Aircraft

The active disturbance rejection control scheme is one of the most popular approaches to nonlinear systems and it is known that active disturbance rejection controllers have a better performance than the traditional PID controllers. This paper focuses on the active disturbance rejection controller design of a tail-sitter aircraft which can take off and land vertically as multi-rotor unmanned aerial vehicles and can cruise like fixed-wing unmanned aerial vehicles. A traditional PID controller is also designed to be compared with the active disturbance rejection controller. Numerical simulations are conducted and the fastness and anti-jamming of the active disturbance rejection controller are validated by the results.