[1]JI Xiaoming,WEN Huaihai.Finite-time trajectory tracking control based on an adaptive neural network for a quadrotor UAV[J].CAAI Transactions on Intelligent Systems,2022,17(3):540-546.[doi:10.11992/tis.202104019]
Copy
CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
17
Number of periods:
2022 3
Page number:
540-546
Column:
学术论文—机器感知与模式识别
Public date:
2022-05-05
- Title:
-
Finite-time trajectory tracking control based on an adaptive neural network for a quadrotor UAV
- Author(s):
-
JI Xiaoming1; WEN Huaihai2
-
1. Department of Electrical Engineering, Jiangsu College of Safety Technology, Xuzhou 221011, China;
2. School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
-
- Keywords:
-
quadrotor aircraft; trajectory tracking; RBF neural network; adaptive law; global fast terminal sliding mode control; finite-time control; model uncertainty; external disturbance
- CLC:
-
TP242
- DOI:
-
10.11992/tis.202104019
- Abstract:
-
Aimed at the trajectory tracking control problem of a quadrotor UAV with model uncertainties and unknown external disturbances, an adaptive global fast terminal sliding mode control method based on the RBF neural network has been proposed herein. The proposed method assists the system in tracking the desired trajectory in finite time. Considering the adaptability of global fast terminal sliding mode control in practical applications and chattering problems, the equivalent control quantity has been replaced by RBF neural networks. The chattering of the system has been reduced effectively by compensating for model uncertainty and unknown external disturbances with online learning of neural networks. According to the adaptive law derived from the Lyapunov method, the weights of neural networks are adjusted online to ensure the stability of the closed-loop system. Through a series of simulation examples and flight experiments, the effectiveness and feasibility of the proposed method have been validated. Results show that the proposed method has less chattering, better convergence, and anti-interference ability. It is also more robust toward model parameter perturbation compared to the sliding mode control.