Results 1 to 10 of about 22,773 (117)

An online identification approach for ship domain model based on AIS data. [PDF]

PLoS ONE, 2022
As an important basis of navigation safety decisions, ship domains have always been a pilot concern. In the past, model parameters were usually obtained from statistics of massive historical cumulative data, but the results were mostly historical ...
Wei Zhou, Jian Zheng, Yingjie Xiao
doaj   +3 more sources

Research on Dynamic Quaternion Ship Domain Model in Open Water Based on AIS Data and Navigator State

Journal of Marine Science and Engineering
During the process of establishing the analytical quaternion ship domain model, the impact of ship traffic conditions and navigator state was not taken into consideration.
Dongqin Liu, Zhongyi Zheng, Zihao Liu
doaj   +3 more sources

Data-driven Ship Domain for Open Water Navigation

Journal of Eta Maritime Science, 2022
Navigation is a significant part of shipping safety as it directs and delivers the physical mass of commercial assets. In addition to navigation, ship domain is a frequently used navigation safety concept in mariner's terminology. However, the perception
Ülkü Öztürk
doaj   +1 more source

A Spatiotemporal Statistical Method of Ship Domain in the Inland Waters Driven by Trajectory Data

Journal of Marine Science and Engineering, 2021
In this study, a method for dynamically establishing ship domain in inland waters is proposed to help make decisions about ship collision avoidance. The surrounding waters of the target ship are divided to grids and then calculating the grid densities of
Fan Zhang, Xin Peng, Liang Huang, Man Zhu, Yuanqiao Wen, Haitao Zheng   +5 more
doaj   +1 more source

Collision Risk Index Calculation Based on an Improved Ship Domain Model

Journal of Marine Science and Engineering, 2022
The traditional ship collision risk index model based on the distance at the closest point of approach (DCPA) and the time to the closest point of approach (TCPA) is insufficient for estimating ship collision risk and planning collision avoidance ...
Weifeng Li, Lufeng Zhong, Yang Xu, Guoyou Shi   +3 more
doaj   +1 more source

SASD Modeling Using an ANFIS to Prevent the Collision of MASS in Restricted Areas

Journal of Marine Science and Engineering, 2022
This study aimed to present the criteria for the collision avoidance of maritime autonomous surface ships (MASS) in restricted areas. The criteria were presented via ship domains, and a seafarers’ awareness-based ship domain (SASD) that dynamically ...
Hee-Jin Lee, Deuk-Jin Park
doaj   +1 more source

Ship Intrusion Collision Risk Model Based on a Dynamic Elliptical Domain

Journal of Marine Science and Engineering, 2023
To improve navigation safety in maritime environments, a key step is to reduce the influence of human factors on the risk assessment of ship collisions by automating the decision-making process as much as possible.
Weifeng Li, Lufeng Zhong, Yaochen Liu, Guoyou Shi   +3 more
doaj   +1 more source

Collision avoidance path planning of tourist ship based on DDPG algorithm

Zhongguo Jianchuan Yanjiu, 2021
ObjectiveSailling saftey is the chief matter for ship navigation, supposing that collision avoidance operation is heavily dependent on the captain's performance or judgement, it would pose potential risks to the ship safety.
Yi ZHOU, Chuanping YUAN, Haicheng XIE, Jianfeng YANG   +3 more
doaj   +1 more source

Multi-Level Alignment Network for Cross-Domain Ship Detection

Remote 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

Remote 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, Ning Xu, Ning Li, Zhengwei Guo   +3 more
doaj   +1 more source