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A validation study of ISM Code's continual effectiveness through a multilateral comparative analysis of maritime accidents in Korean waters 通过对韩国水域海事事故的多边比较分析对ISM规则持续有效性的验证研究
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2023-01-01 DOI: 10.1017/S0373463322000571
Ick-soo Mok, Enrico D'agostini, D. Ryoo
{"title":"A validation study of ISM Code's continual effectiveness through a multilateral comparative analysis of maritime accidents in Korean waters","authors":"Ick-soo Mok, Enrico D'agostini, D. Ryoo","doi":"10.1017/S0373463322000571","DOIUrl":"https://doi.org/10.1017/S0373463322000571","url":null,"abstract":"Abstract This study investigates whether the International Safety Management (ISM) Code remains an effective regulatory tool for the shipping industry by analysing maritime accident statistics published for the last 32 years by the Korea Maritime Safety Tribunal, 24 years by the International Maritime Organization (IMO) and seven years by the European Maritime Safety Agency. For this purpose, the data were divided into four groups: pre-ISM Code, in-transit, post-1 and post-2 periods, and tested by multilateral comparative analysis. The results show that the Korean merchant fleet has no improvement over the periods, whereas the world merchant fleet has a continual decrease in serious casualties. This study confirmed a trend of maritime accidents in recent years: fewer in number but heavier in damage. Conclusively, the results suggest that IMO and decision-makers in the maritime industry must review the ISM Code again and seek solutions to achieve the goal of continual improvement, as specified in the code.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48053046","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 76 issue 1 Cover and Front matter NAV 76卷第1期封面和封面
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2023-01-01 DOI: 10.1017/s0373463323000048
{"title":"NAV volume 76 issue 1 Cover and Front matter","authors":"","doi":"10.1017/s0373463323000048","DOIUrl":"https://doi.org/10.1017/s0373463323000048","url":null,"abstract":"","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46502582","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 76 issue 1 Cover and Back matter NAV第76卷第1期封面和封底
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2023-01-01 DOI: 10.1017/s037346332300005x
{"title":"NAV volume 76 issue 1 Cover and Back matter","authors":"","doi":"10.1017/s037346332300005x","DOIUrl":"https://doi.org/10.1017/s037346332300005x","url":null,"abstract":"","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48774153","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
Improving measurement performance via fusion of classical and quantum accelerometers 通过经典加速计与量子加速计的融合提高测量性能
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2023-01-01 DOI: 10.1017/S0373463322000637
Xuezhi Wang, A. Kealy, Christopher Gilliam, S. Haine, J. Close, B. Moran, Kyle Talbot, Simon Williams, K. Hardman, C. Freier, P. Wigley, Angela White, S. Szigeti, S. Legge
{"title":"Improving measurement performance via fusion of classical and quantum accelerometers","authors":"Xuezhi Wang, A. Kealy, Christopher Gilliam, S. Haine, J. Close, B. Moran, Kyle Talbot, Simon Williams, K. Hardman, C. Freier, P. Wigley, Angela White, S. Szigeti, S. Legge","doi":"10.1017/S0373463322000637","DOIUrl":"https://doi.org/10.1017/S0373463322000637","url":null,"abstract":"Abstract While quantum accelerometers sense with extremely low drift and low bias, their practical sensing capabilities face at least two limitations compared with classical accelerometers: a lower sample rate due to cold atom interrogation time; and a reduced dynamic range due to signal phase wrapping. In this paper, we propose a maximum likelihood probabilistic data fusion method, under which the actual phase of the quantum accelerometer can be unwrapped by fusing it with the output of a classical accelerometer on the platform. Consequently, the recovered measurement from the quantum accelerometer is used to estimate bias and drift of the classical accelerometer which is then removed from the system output. We demonstrate the enhanced error performance achieved by the proposed fusion method using a simulated 1D accelerometer precision test scenario. We conclude with a discussion on fusion error and potential solutions.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43985148","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
Low-cost integrated INS/GNSS using adaptive H∞ Cubature Kalman Filter 基于自适应H∞培养卡尔曼滤波的低成本集成INS/GNSS
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2023-01-01 DOI: 10.1017/S0373463322000583
S. Taghizadeh, R. Safabakhsh
{"title":"Low-cost integrated INS/GNSS using adaptive H∞ Cubature Kalman Filter","authors":"S. Taghizadeh, R. Safabakhsh","doi":"10.1017/S0373463322000583","DOIUrl":"https://doi.org/10.1017/S0373463322000583","url":null,"abstract":"Abstract We proposed an adaptive H-infinity Cubature Kalman Filter (AH∞CKF) to improve the navigation accuracy of a highly manoeuvrable unmanned aerial vehicle (UAV). AH∞CKF fuses the Inertial Navigation System (INS) and Global Navigation Satellite System (GNSS) measurements. Traditional state estimation filters like extended Kalman filters (EKF) and cubature Kalman filters (CKF) assume Gaussian noises. However, their performance degrades for non-Gaussian noises and system uncertainties encountered in real-world applications. Thus, designing filters robust to noise and distribution is crucial. AH∞CKF combines H∞CKF design with an added adaptive factor to adjust the state estimation covariance matrix according to measurements by exploiting the square root method to yield more numerically stable results (SrAH∞CKF). We conducted multiple dynamically rich flight tests to validate our claims using a UAV equipped with a commercially well-known GNSS solution. Results show that the SrAH∞CKF state estimation outperforms EKF and CKF methods on average by 90% in various statistical measures.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42447661","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
Cybersecurity risk assessment of VDR VDR的网络安全风险评估
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2023-01-01 DOI: 10.1017/S0373463322000595
Ömer Söner, Gizem Kayisoglu, P. Bolat, K. Tam
{"title":"Cybersecurity risk assessment of VDR","authors":"Ömer Söner, Gizem Kayisoglu, P. Bolat, K. Tam","doi":"10.1017/S0373463322000595","DOIUrl":"https://doi.org/10.1017/S0373463322000595","url":null,"abstract":"Abstract The voyage data recorder (VDR) is a data recording system that aims to provide all navigational, positional, communicational, sensor, control and command information for data-driven investigation of accidents onboard ships. Due to the increasing dependence on interconnected networks, cybersecurity threats are one of the most severe issues and critical problems when it comes to safeguarding sensitive information and assets. Cybersecurity issues are extremely important for the VDR, considering that modern VDRs may have internet connections for data transfer, network links to the ship's critical systems and the capacity to record potentially sensitive data. Thus, this research adopted failure modes and effects analysis (FMEA) to perform a cybersecurity risk assessment of a VDR in order to identify cyber vulnerabilities and specific cyberattacks that might be launched against the VDR. The findings of the study indicate certain cyberattacks (false information, command injection, viruses) as well as specific VDR components (data acquisition unit (DAU), remote access, playback software) that required special attention. Accordingly, preventative and control measures to improve VDR cybersecurity have been discussed in detail. This research makes a contribution significantly to the improvement of ship safety management systems, particularly in terms of cybersecurity.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45172049","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
Ship routing optimisation based on forecasted weather data and considering safety criteria 基于预测天气数据并考虑安全标准的船舶路径优化
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2022-11-01 DOI: 10.1017/S0373463322000613
Ageliki Kytariolou, N. Themelis
{"title":"Ship routing optimisation based on forecasted weather data and considering safety criteria","authors":"Ageliki Kytariolou, N. Themelis","doi":"10.1017/S0373463322000613","DOIUrl":"https://doi.org/10.1017/S0373463322000613","url":null,"abstract":"Abstract A weather routing tool is presented based on forecasted weather data along the route and considering safety aspects. The tool aims to determine the optimal path for the minimisation of the fuel oil consumption, ensuring a safe passage. It is developed in MATLAB and considers detailed ship characteristics. Specifically, ship's motions and fuel oil consumption of the main engine during a potential path are estimated. For the latter, a physics-based model for a specific vessel is developed where tools of different level of detail are utilised to calculate the various resistance components. A speed management strategy along the route is specified as well as safety criteria representing acceptable limits of ship's responses. When the set criteria and constraints have been set, a genetic algorithm is used to find the optimal route by means of ship's heading or by considering both heading and ship's power settings as variables to minimise the fuel oil consumption. The search space of the algorithm lies within a predefined envelop, but still the evolutionary optimisation approach used has no pre-assigned values to any possible candidate waypoint.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45404840","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
Two sixteenth-century nautical charts of the South Atlantic Ocean: an early example of cartography used at sea 两张16世纪南大西洋的海图:海上制图的早期例子
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2022-11-01 DOI: 10.1017/S0373463322000662
Šima Krtalić, G. Mcintosh
{"title":"Two sixteenth-century nautical charts of the South Atlantic Ocean: an early example of cartography used at sea","authors":"Šima Krtalić, G. Mcintosh","doi":"10.1017/S0373463322000662","DOIUrl":"https://doi.org/10.1017/S0373463322000662","url":null,"abstract":"Abstract Despite the crucial role played by nautical cartography during the 16th-century Iberian Expansion, surviving examples of charts used at sea are extremely rare, leaving gaps in our knowledge of how they were used in practice during this pivotal period. The present paper sheds light on this matter by introducing one of earliest extant Portuguese charts presenting positional fixes, which have so far gone unnoticed by researchers: the anonymous chart of about 1524 kept at the James Ford Bell Library. It is demonstrated that a second chart, kept at the Harry Ransom Center, was made by the same author from the same pattern. The production context of the charts is evidenced through a description of the manuscript copying technique most likely employed, and the rules governing chart manufacture in 16th-century Portugal. Exceptional aspects of the charts’ placenames are discussed, and a possible source for their geographical design is identified.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41369857","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
Influence of chronometer error uncertainties on the Longitude of Shackleton's vessel, Endurance 计时器误差不确定度对沙克尔顿船经度的影响
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2022-11-01 DOI: 10.1017/S0373463322000649
L. Bergman, D. Mearns, R. Stuart
{"title":"Influence of chronometer error uncertainties on the Longitude of Shackleton's vessel, Endurance","authors":"L. Bergman, D. Mearns, R. Stuart","doi":"10.1017/S0373463322000649","DOIUrl":"https://doi.org/10.1017/S0373463322000649","url":null,"abstract":"Abstract In 1915 while the Imperial Trans-Antarctic Expedition's vessel Endurance was icebound in the Weddell Sea, lunar occultation timings were carried out in order to rate the chronometers and thereby find longitude. The original observations have been re-analysed using modern lunar ephemerides and catalogues of star positions. The times derived in this way are found to differ by an average of 20 s from those obtained during the expedition using positions given from the Nautical Almanac and introduces an additional offset of the true positions to the east of those recorded in the log.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46339540","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 6 Cover and Back matter NAV第75卷第6期封面和封底
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2022-11-01 DOI: 10.1017/s0373463323000036
{"title":"NAV volume 75 issue 6 Cover and Back matter","authors":"","doi":"10.1017/s0373463323000036","DOIUrl":"https://doi.org/10.1017/s0373463323000036","url":null,"abstract":"","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47296921","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
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