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Review of Computational Fluid Dynamics Analysis in Biomimetic Applications for Underwater Vehicles [PDF]

Biomimetics
Biomimetics, which draws inspiration from nature, has emerged as a key approach in the development of underwater vehicles. The integration of this approach with computational fluid dynamics (CFD) has further propelled research in this field.
Zhijun Zhang, Qigan Wang, Shujun Zhang
doaj   +2 more sources

Model-based optimal action selection for Dyna-Q reverberation suppression cognitive sonar

EURASIP Journal on Advances in Signal Processing, 2023
The Doppler shift of low-speed targets is frequently disturbed by the reverberation Doppler spread clutter under the shallow sea. The clutter is generated by underwater scatterers, which increases the difficulty of Doppler estimation.
Yubin Fu, Xiaochuan Ma, Chao Feng, Xingxuan Pei, Pengzhuo Li   +4 more
doaj   +1 more source

Performance analysis on the speed spectrum estimation based on dual-HFM waveform

EURASIP Journal on Advances in Signal Processing, 2022
Real-time Doppler estimation of sonar signals is of great significance to underwater communication and detection. The Hyperbolic-Frequency-Modulated (HFM) waveform-based speed spectrum estimation is one of the modern methods for underwater Doppler ...
Runyu Wei, Xuan Li, Yubin Fu, Xiaochuan Ma   +3 more
doaj   +1 more source

Multibody System-Based Adaptive Formation Scheme for Multiple Under-Actuated AUVs

Sensors, 2020
Underwater vehicles’ coordination and formation have attracted increasing attention since they have great potential for real-world applications. However, such vehicles are usually under-actuated and with very limited communication capabilities.
Hai Huang, Qirong Tang, Guocheng Zhang, Tiedong Zhang, Lei Wan, Yongjie Pang   +5 more
doaj   +1 more source

Autonomous underwater vehicles: Instrumentation and measurements [PDF]

IEEE Instrumentation & Measurement Magazine, 2020
Oceans exploration and inspection are a great challenge for the industry nowadays. The underwater instrumentation and measurements are improving due to the current technologies, or by development of new ones, to cover the demand of the new industry offshore.
Pedro José Bernalte Sánchez, Mayorkinos Papaelias, Fausto Pedro García Márquez   +2 more
openaire   +2 more sources

Backstepping active disturbance rejection control for trajectory tracking of underactuated autonomous underwater vehicles with position error constraint

International Journal of Advanced Robotic Systems, 2020
In this article, the three-dimensional trajectory tracking control of an autonomous underwater vehicle is addressed. The vehicle is assumed to be underactuated and the system parameters and the external disturbances are unknown.
Tianqi Xie, Ye Li, Yanqing Jiang, Li An, Haowei Wu   +4 more
doaj   +1 more source

Soft-Switching Proximate Time Optimal Heading Control for Underactuated Autonomous Underwater Vehicle

IEEE Access, 2019
In this paper, a soft-switching proximate time-optimal control (PTOC) is proposed based on the model-compensation extended state observer (ESO) and Takagi-Sugeno fuzzy switching, for the fast set-heading tracking of underactuated autonomous underwater ...
An Li, Li Ye, Jiang Yanqing, Li Yueming, Cao Jian, He Jiayu   +5 more
doaj   +1 more source

Improvements to Terrain Aided Navigation Accuracy in Deep-Sea Space by High Precision Particle Filter initialization

IEEE Access, 2020
AUV (autonomous underwater vehicles) are required to have long-term and high-precision positioning capability relative to seabed targets in most deep-sea exploration tasks.
Wang Rupeng, Li Ye, Ma Teng, Cong Zheng, Gong Yusen, Xu Pengfei   +5 more
doaj   +1 more source

Multiple Autonomous Underwater Vehicle Formation Obstacle Avoidance Control Using Event-Triggered Model Predictive Control

Journal of Marine Science and Engineering, 2023
In this paper, multiple autonomous underwater vehicle (multi-AUV) formation control with obstacle avoidance ability in 3D complex underwater environments based on an event-triggered model predictive control (EMPC) is proposed.
Linling Wang, Xiaoyan Xu, Bing Han, Huapeng Zhang   +3 more
doaj   +1 more source

Optimal and Adaptive Control of Underwater Vehicles [PDF]

1993 American Control Conference, 1993
Summary: This article contains a continuous-time optimal and adaptive control scheme for underwater vehicles moving in six degrees of freedom. The control scheme is an extension of the algorithm of \textit{R. Johansson} (1990) and a modification of the algorithm found in \textit{S. I. Sagatun} (1992).
Svein I. Sagatun, Rolf Johansson 0001
openaire   +3 more sources