The ADRC and simulation of pitching angle for unmanned aerial vehicles

For the complexity of unmanned aerial vehicle models and the bad robustness and such problems, this paper designs an Active Disturbance Rejection Control (ADRC) to achieve the high-performance control. And this kind of ADRC is based on fourth-oder extended state observer, arrangement process and nonlinear feedback. Firstly, the pitching angle model of the unmanned aerial vehicle model is validated. Based on it, this paper compares the different effects of ADRC and PID controller. Finally, the robustness of ADRC is analyzed. The result of the simulation experiment indicates that ADRC shows better effects than PID controllers on this kind of control, which has complex model and nonlinear time-varying system. Meanwhile, ADRC also has a great robustness.