Journal of Navigation最新文献

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Sub-meter-level navigation with an enhanced multi-GNSS single-point positioning algorithm using iGMAS ultra-rapid products 使用iGMAS超快速产品的增强型多GNSS单点定位算法的亚米级导航
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2023-01-01 DOI: 10.1017/S0373463322000601
Sinan Birinci, M. H. Saka
{"title":"Sub-meter-level navigation with an enhanced multi-GNSS single-point positioning algorithm using iGMAS ultra-rapid products","authors":"Sinan Birinci, M. H. Saka","doi":"10.1017/S0373463322000601","DOIUrl":"https://doi.org/10.1017/S0373463322000601","url":null,"abstract":"Abstract Ultra-rapid products have the advantage of being used in real-time positioning with no external connections. In this study, these products provided by the international GNSS Monitoring and Assessment System (iGMAS) for four global constellations (GPS, GLONASS, Galileo and BDS-3) were assessed in terms of service rate and accuracy in navigation. In this regard, a MATLAB-based in-house code solving the problem was developed for all possible combinations of the constellations. To explore the effectiveness of the iGMAS products, the same dataset has been also processed using GFZ rapid products. The results demonstrate that the GPS and Galileo solutions were substantially comparable to the rapid products concerning service rate and accuracy, but that the GLONASS and BDS-3 iGMAS products require some enhancements. In addition, the Galileo solution produced remarkably good results both individually and in combination. The GPS/GLONASS/Galileo/BDS-3 SPP solution generated a mean root mean square (RMS) error of 0 ⋅ 54 m horizontally and 0 ⋅ 89 m vertically. Thus, GPS-only, GLONASS-only, Galileo-only and BDS-3-only solutions were improved by 42%, 79%, 28% and 74% in 3D mean RMS error with the quad system solutions, respectively.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":"76 1","pages":"133 - 151"},"PeriodicalIF":2.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49584819","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
Analysis and Discussion on Ellipsoidal and virtual sphere models used for transverse arrangement INS 横向布置惯性导航系统中椭球和虚球模型的分析与讨论
IF 2.4 4区 工程技术
Journal of Navigation Pub Date : 2023-01-01 DOI: 10.1017/S037346332200056X
Z. Wen, Hongwei Bian, Heng Ma, Rongying Wang
{"title":"Analysis and Discussion on Ellipsoidal and virtual sphere models used for transverse arrangement INS","authors":"Z. Wen, Hongwei Bian, Heng Ma, Rongying Wang","doi":"10.1017/S037346332200056X","DOIUrl":"https://doi.org/10.1017/S037346332200056X","url":null,"abstract":"Abstract Transverse arrangement is one of the main methods used in the polar inertial navigation system (INS). In the traditional algorithm, the calculation of using the earth ellipsoid model is complex, while using the earth sphere model cannot satisfy a high-accuracy application. Therefore, an approach based on the virtual sphere model is proposed, which has been proved in simulation experiments to reduce the computational complexity and maintain the same accuracy as the ellipsoid algorithm, but its accuracy has not yet been proved in theory. Starting from the basic principles of the ellipsoid and virtual sphere model algorithm, this paper compares the key formulations of the two. Finally, it is proved that the two arrangements are actually the same.","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":"76 1","pages":"103 - 112"},"PeriodicalIF":2.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48068705","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
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":"76 1","pages":"77 - 90"},"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":"76 1","pages":"f1 - f2"},"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
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":"76 1","pages":"91 - 102"},"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
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":" ","pages":"b1 - b2"},"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
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":"76 1","pages":"20 - 37"},"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
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":"76 1","pages":"1 - 19"},"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
Transcriptional profiling of neuronal ion channels in dorsal root ganglion-derived immortal cell line (F-11) under different culture conditions. 不同培养条件下背根神经节源性永生细胞系(F-11)神经元离子通道的转录谱分析。
IF 1.9 4区 工程技术
Journal of Navigation Pub Date : 2022-11-01 Epub Date: 2022-11-03 DOI: 10.1007/s44164-022-00036-7
Erick Orozco Morato, Brittany Knight, Lakshmi S Nair
{"title":"Transcriptional profiling of neuronal ion channels in dorsal root ganglion-derived immortal cell line (F-11) under different culture conditions.","authors":"Erick Orozco Morato, Brittany Knight, Lakshmi S Nair","doi":"10.1007/s44164-022-00036-7","DOIUrl":"10.1007/s44164-022-00036-7","url":null,"abstract":"<p><p>Pathological pain is a prevalent condition that affects majority of adults with a variety of underlying disease conditions. Current available pharmacological pain treatments have several negative and potentially life-threatening side effects associated with their long-term use. Due to the heterogeneity of pain perception and the diversity of neuronal mechanisms that contribute to pain, high-throughput screening of small molecules that may have underlying analgesic properties is essential for identifying new analgesic treatments that are both effective and safe. The F-11 hybrid immortalized cell line is one of the currently available dorsal root ganglion (DRG) cell lines used for drug screening. While F-11 cells are commonly used as analogs to primary DRG sensory neurons, they differ significantly in physiological properties. The present study investigated the impact of differentiation protocols on the expression of mature neuron ion channels and receptors in F-11 cells. Using a customized gene array of more than eighty neuronal ion channels and receptors including voltage-gated ion channels, transient receptor potential channels, and cannabinoid receptors, we assessed the following groups: control F-11 cells; F-11 cells cultured under different culture conditions, and murine DRG tissue. The expression profiles of majority of the investigated ion channels and receptors in F-11 cells were found to be lower compared to primary mouse DRG neurons. F-11 cells cultured under low serum (LSM) conditions had increased expression of several investigated targets including voltage-gated ion channels and cannabinoid receptors when compared to control F-11 cells. The study showed that the culture conditions significantly modulated the transcriptional expression of studied ion channels and receptors, and that long-term culture (21 days) may adversely affect the expression of many of the studied targets.</p>","PeriodicalId":50120,"journal":{"name":"Journal of Navigation","volume":"69 1","pages":"385-395"},"PeriodicalIF":1.9,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10723754/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78828195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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":"75 1","pages":"1310 - 1331"},"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
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