[1] [1] CHEN F YJIANG R QZHANG K Ket al.Robust backstepping sliding-mode control and observer-based fault estimation for a quadrotor UAV［J］.IEEE Transactions on Industrial Electronics201663(8):5044-5056.

[3] [3] ZHANG ZWANG FGUO Yet al.Multivariable sliding mode backstepping controller design for quadrotor UAV based on disturbance observer［J］.Science China Information Sciences201861(11):155-170.

[6] [6] ROSALES CTOSETTI SSORIA Cet al.Neural adaptive PID control of a quadrotor using EFK［J］.IEEE Latin America Transactions201816(11):2722-2730.

[7] [7] ROSALES CSORIA C MROSSOMANDO F.Identification and adaptive PID control of a hexacopter UAV based on neural networks［J］.International Journal of Adaptive Control and Signal Processing201933(1):74-91.

[11] [11] FU C HSARABAKHA AKAYACAN Eet al.Input uncertainty sensitivity enhanced nonsingleton fuzzy logic controllers for long-term navigation of quadrotor UAVs［J］.IEEE/ASME Transactions on Mechatronics2018 23(2):725-734.

[14] [14] MOKHTARI M RBRAHAM A CCHERKI B.Extended state observer based control for coaxial-rotor UAV［J］.ISA Transactions201661(1):1-14.