Journal of Navigation最新文献_第5页

A study of S-100 based product specifications from a software implementation point of view: focusing on data model representation, similar features and symbols, and ECDIS and VTS software 从软件实现的角度研究基于S-100的产品规范：重点关注数据模型表示、相似特征和符号以及ECDIS和VTS软件

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-09-01 DOI: 10.1017/S037346332200039X

Seojeong Lee, C. Lee, Geon-Yeob Kim, Hwajin Na, Hyoseung Kim, Jeongseok Lee, Minsik Park

{"title":"A study of S-100 based product specifications from a software implementation point of view: focusing on data model representation, similar features and symbols, and ECDIS and VTS software","authors":"Seojeong Lee, C. Lee, Geon-Yeob Kim, Hwajin Na, Hyoseung Kim, Jeongseok Lee, Minsik Park","doi":"10.1017/S037346332200039X","DOIUrl":"https://doi.org/10.1017/S037346332200039X","url":null,"abstract":"Abstract E-navigation provides the opportunity to apply modern digital and other electronic enhancements to improve the safety and efficiency of maritime navigation. Under the broad banner of e-navigation, the International Hydrographic Organization's S-100 product specification framework is facilitating the establishment of a standard maritime data structure to enable a free-flowing exchange of navigation information between ships, ship-to-shore and shore-to-ship. There are currently over 30 S-100 based product specifications at various stages of development. For the data standard to be properly used, navigation software products must be capable of reading as well as comprehending the data format and content. To develop robust and stable software, the S-100 data models and product specifications must be consistent, accurate and interoperable in conveying various types of information. This paper describes the results of research on S-100 based product specifications from the viewpoint of developing maritime navigation software. In particular, issues related to software development for Electronic Chart Display Information System (ECDIS) and Vessel Traffic Service (VTS) are discussed, including appropriate data model analysis, processing of features, and symbols overlapping with other product specifications. Proposed solutions for some identified issues are presented.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":"75 1","pages":"1226 - 1242"},"PeriodicalIF":2.4,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46928036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Navigators’ views of a collision avoidance decision support system for maritime navigation 海上航行避碰决策支持系统的导航员观点

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-09-01 DOI: 10.1017/S0373463322000510

K. Aylward, R. Weber, M. Lundh, S. MacKinnon, J. Dahlman

{"title":"Navigators’ views of a collision avoidance decision support system for maritime navigation","authors":"K. Aylward, R. Weber, M. Lundh, S. MacKinnon, J. Dahlman","doi":"10.1017/S0373463322000510","DOIUrl":"https://doi.org/10.1017/S0373463322000510","url":null,"abstract":"Abstract Maritime navigation is a complex task involving the acquisition, analysis, and interpretation of information using seamanship, professional knowledge, and technology. As the maritime industry transitions towards maritime autonomous surface ships (MASS), there is an increasing gap between the operator and the technology. This paper explores a collision avoidance decision support system for navigation from the navigator's perspective. The system, developed by Wärtsilä, is called Advanced Intelligent Manoeuvring (AIM) and can generate suggestions for course or speed alterations based on data from surrounding traffic. Nineteen Swedish navigators completed three ship traffic scenarios with and without decision support. Qualitative data were collected using interviews and analysed with thematic analysis. The results show that the participants perceive the decision support system as an advisory tool to visualise how traffic situations could unfold, a task currently difficult for most navigators. This paper discusses the present and near future of maritime navigation, highlighting the benefits of automation, while remaining vigilant about the potential dangers.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":"75 1","pages":"1035 - 1048"},"PeriodicalIF":2.4,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41479305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Application of elliptic integrals in marine navigation 椭圆积分在航海中的应用

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-09-01 DOI: 10.1017/S037346332200042X

Miljenko Petrović

引用次数: 0

NAV volume 75 issue 5 Cover and Front matter NAV第75卷第5期封面和封面

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-09-01 DOI: 10.1017/s0373463322000546

引用次数: 0

A study of the EGM2008 model of Earth's gravitational field 地球引力场的EGM2008模型研究

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-09-01 DOI: 10.1017/S0373463322000480

Don Koks

引用次数: 0

Virtual global positioning system construction approach for unmanned surface vessel based on Dempster–Shafer theory and broad learning framework 基于Dempster-Shafer理论和广义学习框架的无人水面舰艇虚拟全球定位系统构建方法

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-09-01 DOI: 10.1017/S0373463322000418

Chuang Zhang, Chunyan Cao, Kaihang Kang, Chen Guo, Muzhuang Guo

{"title":"Virtual global positioning system construction approach for unmanned surface vessel based on Dempster–Shafer theory and broad learning framework","authors":"Chuang Zhang, Chunyan Cao, Kaihang Kang, Chen Guo, Muzhuang Guo","doi":"10.1017/S0373463322000418","DOIUrl":"https://doi.org/10.1017/S0373463322000418","url":null,"abstract":"Abstract Integrated navigation systems made up of a strap-down inertial navigation system (SINS) and global positioning system (GPS) are increasingly being used to improve the position, speed, and attitude information of unmanned surface vessels (USV). However, a GPS outage could occur due to the dependence of GPS performance on the external environment and the number of available satellites. This study uses an innovative combination of Dempster–Shafer (DS) theory and broad learning (BL) method to design a SINS/GPS integrated navigation system. First, the velocity and position information derived from the SINS and their corresponding GPS were fused using DS fusion rules, while the SINS error was modelled using the BL method. A ‘virtual’ GPS was then designed using the proposed DS–BL approach to provide the speed and position information when the GPS signal was interrupted, thereby ensuring the continuous navigation of the USV. The results of both simulation and sea trial demonstrate that the proposed virtual GPS estimation approach is effective, and the navigational accuracy of the proposed method is superior to other methods.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":"75 1","pages":"1144 - 1166"},"PeriodicalIF":2.4,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48350391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

NAV volume 75 issue 5 Cover and Back matter NAV第75卷第5期封面和封底

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-09-01 DOI: 10.1017/s0373463322000558

引用次数: 0

Attention-guided lightweight generative adversarial network for low-light image enhancement in maritime video surveillance 用于海上视频监控微光图像增强的注意力引导轻量级生成对抗网络

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-08-30 DOI: 10.1017/S0373463322000467

R. W. Liu, Nian Liu, Yanhong Huang, Yu Guo

{"title":"Attention-guided lightweight generative adversarial network for low-light image enhancement in maritime video surveillance","authors":"R. W. Liu, Nian Liu, Yanhong Huang, Yu Guo","doi":"10.1017/S0373463322000467","DOIUrl":"https://doi.org/10.1017/S0373463322000467","url":null,"abstract":"Abstract Benefiting from video surveillance systems that provide real-time traffic conditions, automatic vessel detection has become an indispensable part of the maritime surveillance system. However, high-level vision tasks generally rely on high-quality images. Affected by the imaging environment, maritime images taken under poor lighting conditions easily suffer from heavy noise and colour distortion. Such degraded images may interfere with the analysis of maritime video by regulatory agencies, such as vessel detection, recognition and tracking. To improve the accuracy and robustness of detection accuracy, we propose a lightweight generative adversarial network (LGAN) to enhance maritime images under low-light conditions. The LGAN uses an attention mechanism to locally enhance low-light images and prevent overexposure. Both mixed loss functions and local discriminator are then adopted to reduce loss of detail and improve image quality. Meanwhile, to satisfy the demand for real-time enhancement of low-light maritime images, model compression strategy is exploited to enhance images efficiently while reducing the network parameters. Experiments on synthetic and realistic images indicate that the proposed LGAN can effectively enhance low-light images with better preservation of detail and visual quality than other competing methods.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":"75 1","pages":"1100 - 1117"},"PeriodicalIF":2.4,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44869773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Sea current relative navigation using interacting multiple model filter with adaptive fading technique 基于自适应衰落技术的交互多模型滤波器的海流相对导航

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-08-22 DOI: 10.1017/S0373463322000431

Jaehyuck Cha, Jeong Ho Hwang, Chan-Gook Park

{"title":"Sea current relative navigation using interacting multiple model filter with adaptive fading technique","authors":"Jaehyuck Cha, Jeong Ho Hwang, Chan-Gook Park","doi":"10.1017/S0373463322000431","DOIUrl":"https://doi.org/10.1017/S0373463322000431","url":null,"abstract":"Abstract In this paper, we propose a sea current relative navigation method using an interacting multiple model (IMM) filter with adaptive fading technique that can compensate an inaccurate sea current dynamics model. Due to the marine environment, the underwater vehicles largely depend on inertial navigation. Unfortunately, since its performance deteriorates with time, it is usually aided by another sensor. An electromagnetic-log (EM-log) and a Doppler velocity log (DVL), which are mainly used in marine navigation, provide relative velocity measurements to the sea currents, and hence require an accurate sea current dynamics model to fully utilise them. However, it is difficult to reflect the actual sea current changes with just a single fixed model, resulting in degraded overall navigation performance. Therefore, this paper proposes an IMM filter that can use multiple sea current dynamics models and has sub-filters designed with adaptive fading extended Kalman filter (AFEKF) to compensate for the mismodelling of sea current dynamics. The method is verified by simulation and shows a performance improvement comparable to the optimal filter.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":"75 1","pages":"1190 - 1205"},"PeriodicalIF":2.4,"publicationDate":"2022-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49614424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use of pulsars for ship navigation: an alternative to the sextant 脉冲星在船舶导航中的应用：六分仪的替代品

IF 2.4 4区工程技术

Journal of Navigation Pub Date : 2022-08-22 DOI: 10.1017/S0373463322000297

Janusz Adamson

引用次数: 0