학술논문

Online Learning-Based Trajectory Tracking for Underactuated Vehicles With Uncertain Dynamics
Document Type
Periodical
Source
IEEE Control Systems Letters IEEE Control Syst. Lett. Control Systems Letters, IEEE. 6:2090-2095 2022
Subject
Robotics and Control Systems
Computing and Processing
Components, Circuits, Devices and Systems
Vehicle dynamics
Kernel
Gaussian processes
Numerical stability
Training data
Training
Computational modeling
Autonomous vehicles
intelligent systems
statistical learning
uncertain systems
Language
ISSN
2475-1456
Abstract
Underactuated vehicles have gained much attention in the recent years due to the increasing amount of aerial and underwater vehicles as well as nanosatellites. Trajectory tracking control of these vehicles is a substantial aspect for an increasing range of application domains. However, external disturbances and parts of the internal dynamics are often unknown or very time-consuming to model. To overcome this issue, we present a tracking control law for underactuated rigid-body dynamics using an online learning-based oracle for the prediction of the unknown dynamics. We show that Gaussian process models are of particular interest for the role of the oracle. The presented approach guarantees a bounded tracking error with high probability where the bound is explicitly given. A numerical example highlights the effectiveness of the proposed control law.