Results 21 to 30 of about 3,911,077 (216)

Ship collision risk calculation method considering uncertainty of ship position prediction

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectivesShip collision is one of the main factors threatening the navigation safety of intelligent ships. A calculation model of ship collision risk should identify potential collision risks in time and provide the basic information for the intelligent
Shaobo WANG, Yingjun ZHANG, Xin HU
doaj   +1 more source

Effective Ship Domains Considering Ship Encounter Situations and Speeds

open access: yesJournal of Physics: Conference Series, 2022
Abstract Ship domain is an important concept in assessing navigation situation and planning collision avoidance manoeuvres of a ship. For purpose of improving the precision and adaptability of the ship domains, effective ship domains are proposed for ships with different speeds in a variety of encounter situations in this work.
Shujie Yang, Wei Sun
openaire   +1 more source

A real-time ship encounter collision risk detection approach in close-quarters situation

open access: yesMeasurement + Control, 2023
In order to identify ship collision risk for the security of maritime transportation in a close-quarters situation, a novel real-time ship collision risk awareness approach is proposed by developing a novel non-linear velocity obstacle set, QSD-NLVO ...
Bowen Sui, Jianqiang Zhang, Zhong Liu
doaj   +1 more source

Multi-Level Alignment Network for Cross-Domain Ship Detection

open access: yesRemote Sensing, 2022
Ship detection is an important research topic in the field of remote sensing. Compared with optical detection methods, Synthetic Aperture Radar (SAR) ship detection can penetrate clouds to detect hidden ships in all-day and all-weather.
Chujie Xu, Xiangtao Zheng, Xiaoqiang Lu
doaj   +1 more source

A Multi-Domain Joint Novel Method for ISAR Imaging of Multi-Ship Targets

open access: yesRemote Sensing, 2023
As a key object on the ocean, regulating civilian and military ship targets more effectively is a very important part of maintaining maritime security.
Yangyang Zhang   +3 more
doaj   +1 more source

Multi-ship Encounter Situation Analysis with the Integration of Elliptical Ship Domains and Velocity Obstacles [PDF]

open access: yesTransNav, 2023
With economic globalization, ships tend to be larger and faster, and the volume of maritime traffic is increasing. Ships sailing in waters with dense traffic flow are easy to fall into complicated multi-ship encounter situations and have a high risk of ...
Zhaoxi Cheng   +3 more
doaj   +1 more source

Research on Early Warning of Ship Danger Based on Composition Fuzzy Inference

open access: yesJournal of Marine Science and Engineering, 2020
Ship collision avoidance measures are important for reducing marine accidents caused by human factors and various natural environmental factors and can also prevent property loss and casualties.
Zhiying Guan   +3 more
doaj   +1 more source

A statistical study of ship domains [PDF]

open access: yesJournal of Navigation, 1975
The thesis is an attempt to establish the water area required by any one ship for safe and efficient navigation. The concept of a ship domain has been considered, which may be defined as the effective area around a ship which a navigator would like to keep free with respect to other ships and stationary objects.
openaire   +4 more sources

Experimental studies on seakeeping and maneuverability of ships in adverse weather conditions [PDF]

open access: yes, 2017
The introduction of the energy efficiency design index (EEDI), which is applicable for various types of new-built ships after January 1,2013, raised concerns regarding the sufficiency of propulsion power and steering devices to maintain maneuverability ...
Cura-Hochbaum, AndrĂ©s   +6 more
core   +1 more source

Risky Maritime Encounter Patterns via Clustering

open access: yesJournal of Marine Science and Engineering, 2023
The volume of maritime traffic is increasing with the growing global trade demand. The effect of volume growth is especially observed in narrow and congested waterways as an increase in the ship-ship encounters, which can have severe consequences such as
M. Furkan Oruc, Yigit C. Altan
doaj   +1 more source

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