Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317491
Oriol Escrigas, C. Cuesta-Martínez, J. Barrios, J. Arenas, Eric Arnal, B. Ochoa
gmvBRAVE is a solution that streamlines engineering, analysis and validation tasks, including algorithm testing, in SBAS systems. It provides a helpful service that contributes to improve the process of monitoring, reporting and analysing the daily performances of these systems. Through the automation of the daily executions of SBAS processing algorithms and the performance analysis tools, gmvBRAVE reduces the time cost and increases the efficiency of repetitive engineering tasks which allows extending the range and scope of the analysis. In each execution, it generates an extensive set of outcomes that allows the quick detection and assessment of any incidence or performance degradation of the SBAS service. gmvBRAVE is employed by GMV as the key platform to evaluate the performances of those systems for which GMV's elements are responsible for the computation of the SBAS augmentation message, including EGNOS in Europe and the Australia and New Zealand SBAS Testbed. On the one hand, the current work will show relevant results about the performances of both systems and focusing on the use of the platform on this latter system. On the other hand, all the presented results will be used to show the capabilities and added value that gmvBRAVE provide as engineering, analysis and validation tool for both operating SBAS and systems still under development.
{"title":"gmvBRA VB as engineering, analysis and validation platform for SBAS Systems","authors":"Oriol Escrigas, C. Cuesta-Martínez, J. Barrios, J. Arenas, Eric Arnal, B. Ochoa","doi":"10.23919/ENC48637.2020.9317491","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317491","url":null,"abstract":"gmvBRAVE is a solution that streamlines engineering, analysis and validation tasks, including algorithm testing, in SBAS systems. It provides a helpful service that contributes to improve the process of monitoring, reporting and analysing the daily performances of these systems. Through the automation of the daily executions of SBAS processing algorithms and the performance analysis tools, gmvBRAVE reduces the time cost and increases the efficiency of repetitive engineering tasks which allows extending the range and scope of the analysis. In each execution, it generates an extensive set of outcomes that allows the quick detection and assessment of any incidence or performance degradation of the SBAS service. gmvBRAVE is employed by GMV as the key platform to evaluate the performances of those systems for which GMV's elements are responsible for the computation of the SBAS augmentation message, including EGNOS in Europe and the Australia and New Zealand SBAS Testbed. On the one hand, the current work will show relevant results about the performances of both systems and focusing on the use of the platform on this latter system. On the other hand, all the presented results will be used to show the capabilities and added value that gmvBRAVE provide as engineering, analysis and validation tool for both operating SBAS and systems still under development.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117132982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317392
A. Hesselbarth, L. Wanninger
Nowadays, Android enables the access of GNSS raw data and, thus, an in-depth evaluation of smartphone GNSS observations. We analysed and compared GNSS code and phase observations and the achievable position accuracies of three Android devices: tablet Google Nexus 9, smartphones Xiaomi Mi8 and Huawei P30. Not all the phase observables of these devices possess the property of integer ambiguities. We were able to perform precise antenna calibrations on GPS L1 for both smartphones and obtained corrections for the phase center offsets and phase center variations. The latter do not exceed 1 to 2 cm. With successful ambiguity fixing, we achieved standard deviations of the 3D positions of 2 to 3 cm after 30 minutes of static observations in baseline mode.
{"title":"Towards centimeter accurate positioning with smartphones","authors":"A. Hesselbarth, L. Wanninger","doi":"10.23919/ENC48637.2020.9317392","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317392","url":null,"abstract":"Nowadays, Android enables the access of GNSS raw data and, thus, an in-depth evaluation of smartphone GNSS observations. We analysed and compared GNSS code and phase observations and the achievable position accuracies of three Android devices: tablet Google Nexus 9, smartphones Xiaomi Mi8 and Huawei P30. Not all the phase observables of these devices possess the property of integer ambiguities. We were able to perform precise antenna calibrations on GPS L1 for both smartphones and obtained corrections for the phase center offsets and phase center variations. The latter do not exceed 1 to 2 cm. With successful ambiguity fixing, we achieved standard deviations of the 3D positions of 2 to 3 cm after 30 minutes of static observations in baseline mode.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114277389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317374
R. M. Calvo, J. Poliak, J. Surof, R. Wolf
The adoption of optical inter-satellite links in future evolutions of Global Navigation Satellite Systems could enable key capabilities such as intra-system communication, time-transfer and precise ranging. This work reports on the development of a laboratory demonstrator designed to verify the performance of two-way optical links in a controlled environment. First test results on the performance of bi-directional frequency transfer and single directional ranging over a 30 m free-space link are reported.
{"title":"Evaluation of optical ranging and frequency transfer for the Kepler system : preliminary laboratory tests","authors":"R. M. Calvo, J. Poliak, J. Surof, R. Wolf","doi":"10.23919/ENC48637.2020.9317374","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317374","url":null,"abstract":"The adoption of optical inter-satellite links in future evolutions of Global Navigation Satellite Systems could enable key capabilities such as intra-system communication, time-transfer and precise ranging. This work reports on the development of a laboratory demonstrator designed to verify the performance of two-way optical links in a controlled environment. First test results on the performance of bi-directional frequency transfer and single directional ranging over a 30 m free-space link are reported.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132279672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317397
Marco Fortunato, A. Mazzoni
Few years after the first release of Android GNSS Raw Measurements API, Android smartphones are increasingly becoming the most competitive GNSS mass-market device. The developments in GNSS space and user - mainly related to smartphone manufacturers - segments allowed to show meter and sub-meter accuracy in static and kinematic applications using GNSS observations collected from Android smartphones. Unlike the large number of published researches which deals with the analyses of Android GNSS Raw Measurements and the achievable accuracy in the position domain, the aim of this work is to study the velocity field directly estimated in pedestrian scenarios from Android GNSS measurements. The 3D velocity, estimated with accuracy from few mm/s to 1–2 cm/s - respectively for the horizontal and vertical components - with the kin-VADASE (Variometric Apporach for Displacement Analysis Stand-alone Engine) developed at Sapienza University of Rome, are here applied in the field of gestures reconstruction and heading determination in pedestrian scenarios. The results discussed in the paper show immediate, stable and reliable velocity confirming the key role that Android smartphones are acquiring in mass-market application, e.g. mHealth, AR, fitness and sports.
在Android GNSS Raw Measurements API首次发布几年后，Android智能手机正日益成为最具竞争力的GNSS大众市场设备。GNSS空间和用户(主要与智能手机制造商有关)细分市场的发展允许使用从Android智能手机收集的GNSS观测数据在静态和运动学应用中显示米级和亚米级精度。与大量已发表的关于Android GNSS原始测量数据分析和位置域可实现精度的研究不同，本研究的目的是研究Android GNSS测量数据在行人场景下直接估计的速度场。利用罗马萨皮恩扎大学开发的kin-VADASE(位移分析独立引擎的可变方法)，3D速度的估计精度从几毫米/秒到1-2厘米/秒，分别适用于水平和垂直组件，应用于行人场景中的手势重建和方向确定领域。论文中讨论的结果显示了即时，稳定和可靠的速度，证实了Android智能手机在大众市场应用中的关键作用，例如移动健康，增强现实，健身和运动。
{"title":"New Opportunities for Mass-Market Applications of Real-Time Variometric Velocity Estimated Using Android GNSS Raw Measurements","authors":"Marco Fortunato, A. Mazzoni","doi":"10.23919/ENC48637.2020.9317397","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317397","url":null,"abstract":"Few years after the first release of Android GNSS Raw Measurements API, Android smartphones are increasingly becoming the most competitive GNSS mass-market device. The developments in GNSS space and user - mainly related to smartphone manufacturers - segments allowed to show meter and sub-meter accuracy in static and kinematic applications using GNSS observations collected from Android smartphones. Unlike the large number of published researches which deals with the analyses of Android GNSS Raw Measurements and the achievable accuracy in the position domain, the aim of this work is to study the velocity field directly estimated in pedestrian scenarios from Android GNSS measurements. The 3D velocity, estimated with accuracy from few mm/s to 1–2 cm/s - respectively for the horizontal and vertical components - with the kin-VADASE (Variometric Apporach for Displacement Analysis Stand-alone Engine) developed at Sapienza University of Rome, are here applied in the field of gestures reconstruction and heading determination in pedestrian scenarios. The results discussed in the paper show immediate, stable and reliable velocity confirming the key role that Android smartphones are acquiring in mass-market application, e.g. mHealth, AR, fitness and sports.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"272 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131889367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317522
Aiden Morrison, N. Sokolova, J. Håkegård, T. Bryne, L. Ruotsalainen
This paper reviews the motivation behind and development of a deployable Radio Frequency Interference (RFI) detection, alerting and reporting system which simultaneously monitors all Global Navigation Satellite System (GNSS) L-band signal transmission for disruption, captures interference events, characterizes them, notifies stakeholders of event occurrence and lastly marshals the captured data to cloud storage. Results of a multi-site international deployment program are presented and discussed.
{"title":"A Multi-Site Quad-Band Radio Frequency Interference Monitoring Alerting and Reporting System","authors":"Aiden Morrison, N. Sokolova, J. Håkegård, T. Bryne, L. Ruotsalainen","doi":"10.23919/ENC48637.2020.9317522","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317522","url":null,"abstract":"This paper reviews the motivation behind and development of a deployable Radio Frequency Interference (RFI) detection, alerting and reporting system which simultaneously monitors all Global Navigation Satellite System (GNSS) L-band signal transmission for disruption, captures interference events, characterizes them, notifies stakeholders of event occurrence and lastly marshals the captured data to cloud storage. Results of a multi-site international deployment program are presented and discussed.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134572199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317465
E. Reitbauer, Christoph Schmied, M. Wieser
In windrow composting, the most common method of commercial composting, heaps of bio-waste are turned periodically with compost turners to ensure aeration. Operating compost turners is a tedious task, and it is therefore often difficult for plant operators to find personnel. This problem could be solved with the help of self-driving compost turners. This paper presents a concept for a navigation module of an autonomous compost turner. It analyses the process of windrow composting, derives requirements for an autonomous system and presents an overview of a system design for tracked compost turners. Furthermore, it presents results of a conceptual pre-study which tested a series of navigation sensors in the environment of a composting plant. For the evaluation of the achievable accuracies, a reference trajectory was measured with robotic total stations. The tested navigation sensors are evaluated with regard to their suitability to be used for autonomous compost turners.
{"title":"Autonomous Navigation Module for Tracked Compost Turners","authors":"E. Reitbauer, Christoph Schmied, M. Wieser","doi":"10.23919/ENC48637.2020.9317465","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317465","url":null,"abstract":"In windrow composting, the most common method of commercial composting, heaps of bio-waste are turned periodically with compost turners to ensure aeration. Operating compost turners is a tedious task, and it is therefore often difficult for plant operators to find personnel. This problem could be solved with the help of self-driving compost turners. This paper presents a concept for a navigation module of an autonomous compost turner. It analyses the process of windrow composting, derives requirements for an autonomous system and presents an overview of a system design for tracked compost turners. Furthermore, it presents results of a conceptual pre-study which tested a series of navigation sensors in the environment of a composting plant. For the evaluation of the achievable accuracies, a reference trajectory was measured with robotic total stations. The tested navigation sensors are evaluated with regard to their suitability to be used for autonomous compost turners.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126867909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317407
J. Berdermann, H. Sato, M. Kriegel, T. Fujiwara, T. Tsujii
The development of operational ICAO Space Weather Center to support aviation community has made significant progress during the last two years, resulting in the start of a continuous service to ICAO on 07. November 2019. Although this service is recently the most advanced space weather service in terms of operability and space weather forecasting, there is still important research and development ahead to address the need of the different stakeholders and use-cases in the aviation domain. Especially the impact of spatial and temporal ionospheric gradients as caused by small scale ionospheric irregularities or ionospheric storms is a threat for GNSS augmentation systems as well as for onboard GNSS receivers. Strong disturbances are able to produce severe scintillations or even can cause disruption of communication and data links, whereas strong ionospheric plasma gradients may lead to hazardous misleading information for the positioning domain, especially for differential GNSS applications. Here, we investigate the effect of equatorial ionospheric scintillation on the GNSS based positioning in aviation. We focus on the Equatorial region where small scale ionospheric irregularities, like the so called “plasma bubbles” occur frequently. The analysis is based on high rate GNSS data collected during high solar activity from a coordinated measurement campaign at the European (Tenerife) and Asian (Ishigaki) region. Statistical information about the Loss of Lock probability are assessed, which are important information to develop related GNSS models for aviation to improve forecasts/nowcasts alerts for GNSS-related services.
{"title":"Effects Of Equatorial Ionospheric Scintillation For GNSS Based Positioning In Aviation","authors":"J. Berdermann, H. Sato, M. Kriegel, T. Fujiwara, T. Tsujii","doi":"10.23919/ENC48637.2020.9317407","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317407","url":null,"abstract":"The development of operational ICAO Space Weather Center to support aviation community has made significant progress during the last two years, resulting in the start of a continuous service to ICAO on 07. November 2019. Although this service is recently the most advanced space weather service in terms of operability and space weather forecasting, there is still important research and development ahead to address the need of the different stakeholders and use-cases in the aviation domain. Especially the impact of spatial and temporal ionospheric gradients as caused by small scale ionospheric irregularities or ionospheric storms is a threat for GNSS augmentation systems as well as for onboard GNSS receivers. Strong disturbances are able to produce severe scintillations or even can cause disruption of communication and data links, whereas strong ionospheric plasma gradients may lead to hazardous misleading information for the positioning domain, especially for differential GNSS applications. Here, we investigate the effect of equatorial ionospheric scintillation on the GNSS based positioning in aviation. We focus on the Equatorial region where small scale ionospheric irregularities, like the so called “plasma bubbles” occur frequently. The analysis is based on high rate GNSS data collected during high solar activity from a coordinated measurement campaign at the European (Tenerife) and Asian (Ishigaki) region. Statistical information about the Loss of Lock probability are assessed, which are important information to develop related GNSS models for aviation to improve forecasts/nowcasts alerts for GNSS-related services.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126989214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317438
Ankit Jain, S. Schön
Maintaining the navigation performance with respect to a certain standard is of prime importance in civil aviation operations. In global navigation satellite system (GNSS) based position estimates, the height component is less accurate specifically due to the receiver clock bias. Further, the height component is of high relevance in all phases of flight navigation. With the concept of receiver clock modeling (RCM), sometimes called as clock coasting, the accuracy of the height component could be improved by a large extent. In this paper, we present experimental results of code-based flight navigation computed using two different methods. GNSS observations are recorded on an aerial flight for about three hours with multiple GNSS receivers and an inertial measurement unit (IMU), some of these receivers are connected with external atomic clocks. Data captured is processed post-flight; position and clock bias are estimated at first using multi-GNSS code observations with a Linearized Kalman filter (LKF) without applying the concept of RCM; later using LKF approach and applying the concept of RCM. Finally, the estimated positions are compared with the reference trajectory and the topocentric coordinate differences are evaluated using both methods. Experimental results demonstrate that the precision in the height component is improved by about 80% using GPS and GLONASS observations with RCM applied compared to a positioning solution without applying RCM. There is no significant difference in the horizontal coordinates for the navigation solutions computed using the two different methods.
{"title":"Comparison and Evaluation of Clock-aided and Classical Multi-GNSS Flight Navigation","authors":"Ankit Jain, S. Schön","doi":"10.23919/ENC48637.2020.9317438","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317438","url":null,"abstract":"Maintaining the navigation performance with respect to a certain standard is of prime importance in civil aviation operations. In global navigation satellite system (GNSS) based position estimates, the height component is less accurate specifically due to the receiver clock bias. Further, the height component is of high relevance in all phases of flight navigation. With the concept of receiver clock modeling (RCM), sometimes called as clock coasting, the accuracy of the height component could be improved by a large extent. In this paper, we present experimental results of code-based flight navigation computed using two different methods. GNSS observations are recorded on an aerial flight for about three hours with multiple GNSS receivers and an inertial measurement unit (IMU), some of these receivers are connected with external atomic clocks. Data captured is processed post-flight; position and clock bias are estimated at first using multi-GNSS code observations with a Linearized Kalman filter (LKF) without applying the concept of RCM; later using LKF approach and applying the concept of RCM. Finally, the estimated positions are compared with the reference trajectory and the topocentric coordinate differences are evaluated using both methods. Experimental results demonstrate that the precision in the height component is improved by about 80% using GPS and GLONASS observations with RCM applied compared to a positioning solution without applying RCM. There is no significant difference in the horizontal coordinates for the navigation solutions computed using the two different methods.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115240328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317388
E. Batori, N. Almat, C. Affolderbach, F. Gruet, G. Mileti
In this communication, we give an overview of the field of space atomic clocks and motivate the need for novel types of space atomic clocks, notably based on laser technology. We outline the development status of our pulsed laser-pumped Rb clock in view of combined state-of-the-art stability (~10−14 @ 1 day) and small volume (< 5L). The frequency and intensity stability of a custom made compact pulsed laser source is discussed in view of its implementation in the pulsed laser-pumped clock. Finally, we analyze spectral aging data for a DFB laser diode accumulated over several years and discuss new lines of atomic clock development.
{"title":"High-Performance Pulsed Laser-Pumped Rb Clock for GNSS","authors":"E. Batori, N. Almat, C. Affolderbach, F. Gruet, G. Mileti","doi":"10.23919/ENC48637.2020.9317388","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317388","url":null,"abstract":"In this communication, we give an overview of the field of space atomic clocks and motivate the need for novel types of space atomic clocks, notably based on laser technology. We outline the development status of our pulsed laser-pumped Rb clock in view of combined state-of-the-art stability (~10−14 @ 1 day) and small volume (< 5L). The frequency and intensity stability of a custom made compact pulsed laser source is discussed in view of its implementation in the pulsed laser-pumped clock. Finally, we analyze spectral aging data for a DFB laser diode accumulated over several years and discuss new lines of atomic clock development.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114498491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.23919/ENC48637.2020.9317313
T. Porathe
e-Navigation is a concept launched by the IMO in 2006. The point is to share digital data to the benefit of safety, efficiency and the environment. Every ship must make a voyage plan before leaving berth. Sharing such voyage plans between ships and between ships and shore is called route exchange and such a feature would allow alarms to be triggered both onboard and ashore if a ship deviate from its planned route, or if two ships plan to be at the same place at the same time. To visualise correspondence or lack of correspondence between the planed position and the real position the concept of Moving Havens is suggested. It is a visualisation tool designed to intuitively show if a ship falls out of its safety checked position. In case of route exchange and Ship Traffic Management it will facilitate for land-based operators or automation to distinguish dangerous situations. The concept is presented in this paper. The same method is suggested as a tool to increased awareness and safety in the context of a future mixed environment of Maritime Autonomous Surface Ships (MASS) and traditional manned ships.
{"title":"Ship Traffic Organization with Moving Havens: Ship and Shore Perspective","authors":"T. Porathe","doi":"10.23919/ENC48637.2020.9317313","DOIUrl":"https://doi.org/10.23919/ENC48637.2020.9317313","url":null,"abstract":"e-Navigation is a concept launched by the IMO in 2006. The point is to share digital data to the benefit of safety, efficiency and the environment. Every ship must make a voyage plan before leaving berth. Sharing such voyage plans between ships and between ships and shore is called route exchange and such a feature would allow alarms to be triggered both onboard and ashore if a ship deviate from its planned route, or if two ships plan to be at the same place at the same time. To visualise correspondence or lack of correspondence between the planed position and the real position the concept of Moving Havens is suggested. It is a visualisation tool designed to intuitively show if a ship falls out of its safety checked position. In case of route exchange and Ship Traffic Management it will facilitate for land-based operators or automation to distinguish dangerous situations. The concept is presented in this paper. The same method is suggested as a tool to increased awareness and safety in the context of a future mixed environment of Maritime Autonomous Surface Ships (MASS) and traditional manned ships.","PeriodicalId":157951,"journal":{"name":"2020 European Navigation Conference (ENC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121917930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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