Results 71 to 80 of about 687 (180)

Research on UUV Obstacle Avoiding Method Based on Recurrent Neural Networks

Complexity, 2019
In this paper, we present an online obstacle avoidance planning method for unmanned underwater vehicle (UUV) based on clockwork recurrent neural network (CW-RNN) and long short-term memory (LSTM), respectively.
Changjian Lin, Hongjian Wang, Jianya Yuan, Dan Yu, Chengfeng Li   +4 more
doaj   +1 more source

3D Obstacle Avoidance Path Planning Algorithm and Software Design for UUV Based on Improved D* Lite-APF

Journal of Marine Science and Engineering
To meet the development requirements of the path planning unit for unmanned underwater vehicles (UUVs), research is conducted on UUV 3D obstacle avoidance path planning algorithms and software design.
Peisen Jin, Wenkui Li, Jinlin Zhan, Chenyang Shan   +3 more
doaj   +1 more source

A numerical investigation on interaction effects between two underwater vehicles in close proximity

Journal of Ocean Engineering and Science
Underwater vehicles operating in close proximity suffer from significant hydrodynamic interactions, especially when there is a prominent vehicle size disparity.
Zi-Qiang Zheng, Lu Zou, Xuan Wang, Zao-Jian Zou   +3 more
doaj   +1 more source

Path Planning Method for UUV Homing and Docking in Movement Disorders Environment

The Scientific World Journal, 2014
Path planning method for unmanned underwater vehicles (UUV) homing and docking in movement disorders environment is proposed in this paper. Firstly, cost function is proposed for path planning. Then, a novel particle swarm optimization (NPSO) is proposed
Zheping Yan, Chao Deng, Dongnan Chi, Tao Chen, Shuping Hou   +4 more
doaj   +1 more source

A simplified concept for recovering a UUV to a submarine

Underwater Technology: International Journal of the Society for Underwater, 2014
The use of unmanned underwater vehicles (UUVs) to enhance the military capabilities of submarines and to reduce their operational risk is being considered by navies around the world. However, a major difficulty with the operations of UUVs is their recovery back to the submarine at the end of the mission.
openaire   +1 more source

A Shape Optimization Method Based on Sensitivity-Driven Surrogate Model for a Rim-Driven-Propelled UUV

Journal of Marine Science and Engineering
Under hull–propulsor coupling conditions, the geometric shape of an unmanned underwater vehicle (UUV) can significantly affect the inflow conditions of the aft rim-driven thruster (RDT) and, consequently, its propulsive performance.
Zhenwei Liu, Daiyu Zhang, Ning Wang, Chaoming Bao, Qian Liu, Hongwei Chen   +5 more
doaj   +1 more source

A Survey on Unmanned Underwater Vehicles: Challenges, Enabling Technologies, and Future Research Directions. [PDF]

Sensors (Basel), 2023
Wibisono A, Piran MJ, Song HK, Lee BM.
europepmc   +1 more source

Formation Control of Multiple UUVs Based on GRU-KF with Communication Packet Loss

Journal of Marine Science and Engineering
In response to the problem of decreased collaborative control performance in underwater unmanned vehicles (UUVs) with communication packet loss, a GRU-KF method for multi-UUV control that integrates a gated recurrent unit (GRU) and a Kalman filter (KF ...
Juan Li, Rui Luo, Honghan Zhang, Zhenyang Tian   +3 more
doaj   +1 more source

Development of VTOL-configured unmanned aquatic vehicle for underwater welding applications: An innovative design and multi-perspective computational investigations

Results in Engineering
Underwater welding is a challenging and intricate technique. An Unmanned Underwater Vehicle (UUV) has been specifically created for this task. This study encompasses all the calculations and computational techniques related to both the basic UUV and the ...
Janani Priyadharshini Veeraperumal Senthil Nathan, Manikandan Arumugam, Mahendran Rajendran, Laxana Sourirajan, Gopinath Vinayagam, Akhila Ajith Pisharam, Sundhar Baskar, Beena Stanislaus Arputharaj, Subhav Singh, Khristina Maksudovna Vafaeva, Vijayanandh Raja   +10 more
doaj   +1 more source

Positioning of Unmanned Underwater Vehicle Based on Autonomous Tracking Buoy. [PDF]

Sensors (Basel), 2023
Li Y, Ruan R, Zhou Z, Sun A, Luo X.
europepmc   +1 more source