Results 21 to 30 of about 21,339 (219)

Control of Unmanned Surface Vehicle Along the Desired Trajectory Using Improved Line of Sight and Estimated Sideslip Angle

Polish Maritime Research, 2021
In order to improve the accuracy and robustness of path following control for an Unmanned Surface Vehicle (USV) suffering from unknown and complex disturbances, a variable speed curve path following a control method based on an extended state observer ...
Li Ligang, Pei Zhiyuan, Jin Jiucai, Dai Yongshou   +3 more
doaj   +1 more source

Path Planning Method of Unmanned Surface Vehicles Formation Based on Improved A* Algorithm

Journal of Marine Science and Engineering, 2023
Unmanned surface vehicle (USV) formation is a hot topic of current research. Path planning is the core technology for USV formation. This paper focuses on a USV formation path planning problem considering kinetic constraints.
Tongtong Sang, Jinchao Xiao, Junfeng Xiong, Haoyun Xia, Zhongze Wang   +4 more
doaj   +1 more source

Optimized Radial Basis Function Neural Network Based Intelligent Control Algorithm of Unmanned Surface Vehicles

Journal of Marine Science and Engineering, 2020
To improve the tracking stability control of unmanned surface vehicles (USVs), an intelligent control algorithm was proposed on the basis of an optimized radial basis function (RBF) neural network. The design process was as follows. First, the adaptation
Renqiang Wang, Donglou Li, Keyin Miao
doaj   +1 more source

Development and Performance Measurement of an Affordable Unmanned Surface Vehicle (USV)

Automation, 2022
Indonesia is a maritime country that has vast coastal resources and biodiversity. To support the Indonesian maritime program, a topography mapping tool is needed. The ideal topography mapping tool is the Unmanned Surface Vehicle (USV).
Joga Dharma Setiawan, Muhammad Aldi Septiawan, Mochammad Ariyanto, Wahyu Caesarendra, M. Munadi, Sabri Alimi, Maciej Sulowicz   +6 more
doaj   +1 more source

Functional clustering of mouse ultrasonic vocalization data. [PDF]

PLoS ONE, 2018
Mouse ultrasonic vocalizations (USVs) are studied in many fields of science. However, various noise and varied USV patterns in observed signals make complete automatic analysis difficult.
Xiaoling Dou, Shingo Shirahata, Hiroki Sugimoto   +2 more
doaj   +1 more source

Ultrasonic Vocalizations Emission across Development in Rats: Coordination with Respiration and Impact on Brain Neural Dynamics

Brain Sciences, 2021
Rats communicate using ultrasonic vocalizations (USV) throughout their life when confronted with emotionally stimulating situations, either negative or positive.
Julie Boulanger-Bertolus, Anne-Marie Mouly   +1 more
doaj   +1 more source

Multidisciplinary design of a micro-USV for re-entry operations [PDF]

, 2010
Unmanned Space Vehicles (USV) are seen as a test-bed for enabling technologies and as a carrier to deliver and return experiments to and from low-Earth orbit.
Liqiang, Hou, Minisci, Edmondo, Vasile, Massimiliano   +2 more
core   +1 more source

A hybrid air-sea cooperative approach combined with a swarm trajectory planning method

Paladyn, 2020
This work addresses the issue of ocean monitoring and clean-up of polluted zones, as well as the notion of trajectory planning and fault tolerance for semi-autonomous unmanned vehicles.
Bella Salima, Belbachir Assia, Belalem Ghalem   +2 more
doaj   +1 more source

Analysis of characteristics of foreign unmanned surface vehicle swarm combat application and proposed countermeasures

Zhongguo Jianchuan Yanjiu, 2023
As an important component of future naval campaigns, the unmanned surface vehicle (USV) swarm is an important direction for the development of unmanned maritime assets in various counties.
Wei FENG, Donghua CUI, Tianbing XIA, Zhaokun YAN, Hongdong WANG   +4 more
doaj   +1 more source

Wilhelmy equation revisited: a lightweight method to measure liquid-vapor, solid-liquid and solid-vapor interfacial tensions from a single molecular dynamics simulation

, 2020
We have given theoretical expressions for the forces exerted on a quasi-2D flat and smooth solid plate immersed into a liquid pool of a simple liquid.
Bistafa, Carlos, Imaizumi, Yuta, Kusudo, Hiroki, Omori, Takeshi, Yamaguchi, Yasutaka   +4 more
core   +1 more source