A partially observable multi-ship collision avoidance decision-making model based on deep reinforcement learning

K Zheng, X Zhang, C Wang, M Zhang, H Cui - Ocean & Coastal …, 2023 - Elsevier
Unmanned ships have drawn widespread attention for their potential to enhance
navigational safety, minimize human errors, and improve shipping efficiency. Nevertheless …

Distributed formation control of underactuated ships with connectivity preservation and collision avoidance

C Liu, Q Hu, T Sun - Ocean Engineering, 2022 - Elsevier
Formation control of ship has distinct advantages in ocean exploration, environment
monitoring, patrol surveillance, and maritime rescue with efficiency and flexibility. In this …

Formation control of UAV–USV based on distributed event-triggered adaptive MPC with virtual trajectory restriction

Y Zhu, S Li, G Guo, P Yuan, J Bai - Ocean Engineering, 2024 - Elsevier
This paper studies the formation and trajectory tracking problem of unmanned aerial vehicle-
unmanned surface vehicle (UAV–USV). A distributed event-triggered adaptive model …

Dynamic event-triggered trajectory tracking control for underactuated marine surface vessels with positive minimum inter-event time guarantees

B Zhou, Z Huang, B Huang, Y Su, C Zhu - Ocean Engineering, 2022 - Elsevier
This paper proposes a dynamic event-triggered trajectory tracking control scheme for
underactuated marine surface vessels (MSVs) with positive minimum inter-event time (MIET) …

Dynamic obstacle avoidance of unmanned ship based on event-triggered adaptive nonlinear model predictive control

S Li, Y Zhu, J Bai, G Guo - Ocean Engineering, 2023 - Elsevier
This article studies trajectory tracking and dynamic obstacle avoidance problems of
unmanned ships, and an event-triggered adaptive nonlinear model predictive control …

A COLREGs-Compliant Ship Collision Avoidance Decision-Making Support Scheme Based on Improved APF and NMPC

H Li, X Wang, T Wu, S Ni - Journal of Marine Science and Engineering, 2023 - mdpi.com
In this paper, combined with the improved artificial potential field (IAPF) method and the
nonlinear model predictive control (NMPC) algorithm, a collision avoidance decision-making …

Fixed-Time Generalized Super-Twisting Controller for the Trajectory Tracking of Unmanned Surface Vehicles in Autonomous Berthing

X Yang, Q Wang, J Hu, B Xu, S Ding… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Autonomous berthing is the last crucial step in achieving full autonomy for unmanned
surface vehicles (USVs). It can be transformed into a trajectory-tracking problem. A novel …

[HTML][HTML] Inertia load reduction for loadoff during floating offshore wind turbine installation: Release decision and ballast control

C Ma, ZZ Hu, XY Zheng, Z Ren - Sustainable Horizons, 2024 - Elsevier
High offshore installation costs are a significant factor limiting the competitiveness of
offshore wind energy. One efficient installation approach for floating offshore wind turbines is …

The Non-Singular Terminal Sliding Mode Control of Underactuated Unmanned Surface Vessels Using Biologically Inspired Neural Network

D Xu, Z Li, P Xin, X Zhou - Journal of Marine Science and Engineering, 2024 - mdpi.com
Underactuated Unmanned Surface Vessels (USVs) are widely used in civil and military
fields due to their small size and high flexibility, and trajectory tracking control is a critical …

Event-trigger NMPC for 3-D trajectory tracking of UUV with external disturbances

W Zhang, Q Wang, W Wu, X Du, Y Zhang, P Han - Ocean Engineering, 2023 - Elsevier
In this paper, a novel Three-Dimensional (3-D) trajectory tracking method based on Event-
triggered Nonlinear Model Predictive Control (ENMPC) is designed for an Underwater …