Nemati, Hamidreza and Montazeri, Allahyar (2019) Output Feedback Sliding Mode Control of Quadcopter using IMU Navigation. In: Proceedings - 2019 IEEE International Conference on Mechatronics, ICM 2019. IEEE, pp. 634-639. ISBN 9781538669594
Full text not available from this repository.Abstract
The main focus of this paper is to design various nonlinear sliding mode output feedback control approaches for attitude stabilisation of a quadcopter UAV using only IMU navigation sensor. Three types of controllers are considered based on asymptotical, finite-time and fast finite-time stability as conventional, terminal and fast terminal sliding mode controllers, respectively. Furthermore, two types of perturbations are applied to the plant as internal and external disturbances. Measurement noises in sensors are selected as internal disturbances, and sensor biases and wind gust are chosen as external ones. Since the uncertainties in orthogonal rate gyroscopes can be categorised into mismatched ones, extended Kalman filter is utilised. In addition, the performance of the closed-loop system is tested in the presence of uncertain Kalman gain in an unknown harsh environment. Finally, simulation results are presented to validate the analysis.