Data-driven model predictive control for ships with Gaussian process

• Published in: Ocean engineering 2023-01, Vol.268, p.113420, Article 113420
• Main Authors: Xu, Peilong, Qin, Hongde, Ma, Jingran, Deng, Zhongchao, Xue, Yifan
• Format: Article
• Language: English
• Subjects: Gaussian process; Model predictive control; Ship maneuvering model; System identification
• ISSN: 0029-8018; 1873-5258
• DOI: 10.1016/j.oceaneng.2022.113420

Nonlinear and underactuated ship maneuvering model is the main difficulty in ship motion control, and model predictive control (MPC) offers a great choice to handle this problem. However, most of the research on MPC adopts traditional parametric models based on physical prior knowledge, which limits its control performance and further application for various USVs. Recent success of machine learning has aroused a growing interest in data-driven and learning-based controller. Here, we present a data-driven ship heading controller, which combines the Gaussian process (GP) and MPC. The proposed method can identify the ship maneuvering model without any prior knowledge, and realize the heading control and waypoints following based on the learned nonparametric model. The similarity-based sparse GP algorithm is presented to reduce the computational complexity. Evaluated by both heading control and waypoints following in a real container ship data-driven simulation under environmental disturbances, the developed scheme is a powerful data-driven controller with good generalization ability and robustness to unknown disturbance. •A novel data-driven model predictive controller based on Gaussian process is proposed for path following.•The scheme does not need any prior physical framework and establishes a nonparametric dynamic model.•The computation complexity of model predictive control is reduced by sparse technique and LOS method.•The presented data-driven NMPC is effective in path following and robust to disturbance and noise.