Results 41 to 50 of about 1,933 (184)

Effectiveness Assessment of Underwater Area Cruise Based on the ADC Method

Journal of Field Robotics, EarlyView.
ABSTRACT Underwater area surveillance plays a crucial role in upholding national security, safeguarding strategic interests, and mitigating potential threats. Despite its significance, a notable gap persists in the availability of comprehensive models for assessing its effectiveness.
Qingwei Liang, Yuxin Lin, Mingyang Luo, Zhanghong Zeng   +3 more
wiley   +1 more source

Reinforcement learning approaches in the motion systems of autonomous underwater vehicles

Applied Ocean Research
Autonomous underwater vehicles (AUVs) have been receiving increasing attention due to the significant role in the exploration of ocean resources. The complex underwater disturbances and highly coupled models pose significant challenges to the design of ...
Ting Yu, Qi Zhang, Tiejun Liu
doaj   +1 more source

A Novel Single-Beacon Navigation Method for Group AUVs Based on SIMO Model

IEEE Access, 2018
Single-beacon navigation for group autonomous underwater vehicles (AUVs) suffers from long navigation period and asynchronization. This paper addresses the problem by introducing the single-input-multiple-output (SIMO) model, where, a single AUV ...
Sibo Sun, Shuangning Yu, Zhibo Shi, Jin Fu, Chunhui Zhao   +4 more
doaj   +1 more source

An Efficient Multi-AUV Cooperative Navigation Method Based on Hierarchical Reinforcement Learning

Journal of Marine Science and Engineering, 2023
Positioning errors introduced by low-precision navigation devices can affect the overall accuracy of a positioning system. To address this issue, this paper proposes a master-slave multi-AUV collaborative navigation method based on hierarchical ...
Zixiao Zhu, Lichuan Zhang, Lu Liu, Dongwei Wu, Shuchang Bai, Ranzhen Ren, Wenlong Geng   +6 more
doaj   +1 more source

FLSea: Underwater Visual–Inertial and Stereovision Forward‐Looking Data Sets

Journal of Field Robotics, EarlyView.
ABSTRACT Visibility underwater is challenging and degrades as the distance between the subject and the camera increases. That is why forward‐looking underwater computer vision tasks are difficult. We have collected underwater forward‐looking stereovision and visual–inertial image sets using two underwater imaging platforms, a stereo camera rig, and an ...
Yelena Randall, Ori Lifschitz, Tali Treibitz   +2 more
wiley   +1 more source

Hierarchical Adaptive Fixed-Time Formation Control for Multiple Underactuated Autonomous Underwater Vehicles Under Uncertain Disturbances and Input Saturation

Journal of Marine Science and Engineering
Recent advances in multiple autonomous underwater vehicles (AUVs) have highlighted formation control as a critical challenge for underwater collaborative operations.
Jiacheng Chang, Lanyong Zhang, Yifan Tan, Xue Fu, Hongjun Yu   +4 more
doaj   +1 more source

Consensus Control of Multiple AUVs Recovery System Under Switching Topologies and Time Delays

IEEE Access, 2019
The consensus control of multiple AUVs recovery system is the key to complete the multi-AUV recovery mission. This paper proposes consensus control of multiple AUVs recovery system under switching communication topologies and time delays including input ...
Wei Zhang, Jia Zeng, Zheping Yan, Shilin Wei, Jun Zhang, Zewen Yang   +5 more
doaj   +1 more source

Deep learning‐based super‐resolution reconstruction and improved YOLOv9 for efficient benthos detection: a case study at Lake Hamana, Japan

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a UAV‐based framework that integrates deep learning‐based super‐resolution reconstruction and an enhanced YOLO detector to improve centimetre‐scale benthic organism monitoring. Using hermit crabs in Lake Hamana, a coastal lagoon in Japan, as a case study, the method substantially enhanced small‐object detection performance ...
Fan Zhao, Bangzhang Ma, Dianhan Xi, Jiaqi Wang, Yijia Chen, Yongying Liu, Xinlei Shao, Mowen Zhang, Guocheng Zhang, Jundong Chen, Katsunori Mizuno   +10 more
wiley   +1 more source

On-Device Intelligence for AI-Enabled Bio-Inspired Autonomous Underwater Vehicles (AUVs)

IEEE Access
This paper introduces an innovative approach to underwater exploration by integrating Artificial Intelligence (AI) into Autonomous Underwater Vehicles (AUVs). This collaboration between AI and biomimicry marks a new era for AUVs, enabling them to emulate
Aryan Anand, M Yuva Bharath, Prabha Sundaravadivel, J. Preetha Roselyn, R. Annie Uthra   +4 more
doaj   +1 more source

Robust Formation Control for Multiple Underwater Vehicles

Frontiers in Robotics and AI, 2019
This paper addresses the distance-based formation control problem for multiple Autonomous Underwater Vehicles (AUVs) in a leader-follower architecture. The leading AUV is assigned a task to track a desired trajectory and the following AUVs try to set up ...
Charalampos P. Bechlioulis, Fotis Giagkas, George C. Karras, George C. Karras, Kostas J. Kyriakopoulos   +4 more
doaj   +1 more source