Sensors | Free Full-Text | Fisheye-Based Method for GPS Localization Improvement in Unknown Semi-Obstructed Areas
A precise GNSS (Global Navigation Satellite System) localization is vital for autonomous road vehicles, especially in cluttered or urban environments where satellites are occluded, preventing accurate positioning. We propose to fuse GPS (Global Positioning System) data with fisheye stereovision to face this problem independently to additional data, possibly outdated, unavailable, and needing correlation with reality. Our stereoscope is sky-facing with 360° × 180° fisheye cameras to observe surrounding obstacles. We propose a 3D modelling and plane extraction through following steps: stereoscope self-calibration for decalibration robustness, stereo matching considering neighbours epipolar curves to compute 3D, and robust plane fitting based on generated cartography and Hough transform. We use these 3D data with GPS raw data to estimate NLOS (Non Line Of Sight) reflected signals pseudorange delay. We exploit extracted planes to build a visibility mask for NLOS detection. A simplified 3D canyon model allows to compute reflections pseudorange delays. In the end, GPS positioning is computed considering corrected pseudoranges. With experimentations on real fixed scenes, we show generated 3D models reaching metric accuracy and improvement of horizontal GPS positioning accuracy by more than 50%. The proposed procedure is effective, and the proposed NLOS detection outperforms CN0-based methods (Carrier-to-receiver Noise density). View Full-Text
Keywords: vehicle positioning; GPS; fisheye stereovision; 3D point cloud
Fisheye-Based Method for GPS Localization Improvement in Unknown Semi-Obstructed Areas
Julien Moreau 1,* , Sébastien Ambellouis 2 and Yassine Ruichek 1
1 UTBM IRTES-SET, Rue Ernest Thierry Mieg, 90010 Belfort CEDEX, France
2 IFSTTAR-COSYS-LEOST, 20 rue Élysée Reclus, BP 70317 59666 Villeneuve d’Ascq CEDEX, France
Affichage des articles dont le libellé est GNSS. Afficher tous les articles
Affichage des articles dont le libellé est GNSS. Afficher tous les articles
Un jour historique pour Galileo - Ministère de l'Environnement, de l'Energie et de la Mer
Un jour historique pour Galileo - Ministère de l'Environnement, de l'Energie et de la Mer
Extrait
"Pour Alain Vidalies, « suite à cette mise en service, l’Europe doit soutenir l’émergence d’applications innovantes, et, dans un environnement concurrentiel mondial sévère, garantir totalement l’autonomie européenne par une réglementation qui impose l’utilisation de puces compatibles avec Galileo dans tous les récepteurs utilisés en Europe. Nous avons lancé le programme Galileo pour gagner notre indépendance dans un secteur dont dépend une part importante de notre économie. Maintenant que la constellation Galileo devient une réalité, il est urgent d’œuvrer pour qu’elle soit effectivement utilisée »."
Extrait
"Pour Alain Vidalies, « suite à cette mise en service, l’Europe doit soutenir l’émergence d’applications innovantes, et, dans un environnement concurrentiel mondial sévère, garantir totalement l’autonomie européenne par une réglementation qui impose l’utilisation de puces compatibles avec Galileo dans tous les récepteurs utilisés en Europe. Nous avons lancé le programme Galileo pour gagner notre indépendance dans un secteur dont dépend une part importante de notre économie. Maintenant que la constellation Galileo devient une réalité, il est urgent d’œuvrer pour qu’elle soit effectivement utilisée »."
Galileo: Spaceopal (Telespazio/DLR-GfR) awarded the management of the European satellite navigation programme's operations - DETAIL - Telespazio
Galileo: Spaceopal (Telespazio/DLR-GfR) awarded the management of the European satellite navigation programme's operations - DETAIL - Telespazio
Spaceopal, equal joint venture between Telespazio (Leonardo- Finmeccanica/Thales) and DLR-GfR (subsidiary of the German Space Agency DLR) won the GSOp (Galileo System Operator) tender, issued by the GSA (European GNSS Agency) for managing the operations of the European Galileo satellite positioning and navigation programme...In addition to the planned activities in the Operations field, Spaceopal will provide a fundamental contribution to the development of the Galileo services through a GNSS Competence Cluster, which leverages the experience of its shareholders Telespazio and DLR-GfR and the other GSOp industrial partners, and through an international ecosystem of entities heavily engaged in application development, made up of institutes, Research Agencies, leading companies and SMEs (Agenzia Spaziale Italiana, Austro Control, BavAIRia, Catapult, Cesah, Deutschen Zentrums für Luft- und Raumfahrt (DLR), ERF, Fraunhofer IIS, Globant, Hexagon, Hexagon Geospatial, IABG, IBM, IFEN, IFSTTAR, Indra, ITS Hessen, KSAT, NSL, Qascom, Scisys, Septentrio, Sogei, SUR, Thales Avionics).
Spaceopal, equal joint venture between Telespazio (Leonardo- Finmeccanica/Thales) and DLR-GfR (subsidiary of the German Space Agency DLR) won the GSOp (Galileo System Operator) tender, issued by the GSA (European GNSS Agency) for managing the operations of the European Galileo satellite positioning and navigation programme...In addition to the planned activities in the Operations field, Spaceopal will provide a fundamental contribution to the development of the Galileo services through a GNSS Competence Cluster, which leverages the experience of its shareholders Telespazio and DLR-GfR and the other GSOp industrial partners, and through an international ecosystem of entities heavily engaged in application development, made up of institutes, Research Agencies, leading companies and SMEs (Agenzia Spaziale Italiana, Austro Control, BavAIRia, Catapult, Cesah, Deutschen Zentrums für Luft- und Raumfahrt (DLR), ERF, Fraunhofer IIS, Globant, Hexagon, Hexagon Geospatial, IABG, IBM, IFEN, IFSTTAR, Indra, ITS Hessen, KSAT, NSL, Qascom, Scisys, Septentrio, Sogei, SUR, Thales Avionics).
Rail | European Global Navigation Satellite Systems Agency
Rail | European Global Navigation Satellite Systems Agency
Aside from the more well-known facts such as passenger information, European GNSS serves the rail sector in various other ways. From asset management to High and Low Density Command & Control Systems, the amount of initiatives in the world shows the consideration given to Rail and GNSS developments. GNSS enabled signalling applications provide increased safety and reduce costs of infrastructure management and operations compared to legacy signalling solutions.
Aside from the more well-known facts such as passenger information, European GNSS serves the rail sector in various other ways. From asset management to High and Low Density Command & Control Systems, the amount of initiatives in the world shows the consideration given to Rail and GNSS developments. GNSS enabled signalling applications provide increased safety and reduce costs of infrastructure management and operations compared to legacy signalling solutions.
Road | European Global Navigation Satellite Systems Agency
Road | European Global Navigation Satellite Systems Agency
Mobility is an important part of everyone's daily lives. European GNSS, including EGNOS, is making everyone's life on the road easier by significantly reducing congestion and, consequently, CO2 pollution, improving the efficiency of road transportation through navigation, fleet management opportunities and satellite road traffic monitoring.
Mobility is an important part of everyone's daily lives. European GNSS, including EGNOS, is making everyone's life on the road easier by significantly reducing congestion and, consequently, CO2 pollution, improving the efficiency of road transportation through navigation, fleet management opportunities and satellite road traffic monitoring.
Europe's satellite navigation system Galileo will start offering initial services to public authorities, businesses and citizens on 15 December 2016.
Europe's satellite navigation system Galileo will start offering initial services to public authorities, businesses and citizens on 15 December 2016.
Extrait :
Extrait :
"The Declaration of Galileo Initial Services means that the Galileo satellites and ground infrastructure are now operationally ready. During the initial phase, the first Galileo signals will be used in combination with other satellite navigation systems, such as GPS. In the coming years, new satellites will be launched to enlarge the Galileo constellation, which will gradually improve Galileo availability worldwide. The constellation is expected to be completed by 2020 when Galileo will reach full operational capacity."
New Galileos join Europe’s satnav constellation
New Galileos join Europe’s satnav constellation:
Galileo satellites 13 and 14 have begun transmitting navigation signals as fully operational members of Europe’s satnav constellation.
Galileo satellites 13 and 14 have begun transmitting navigation signals as fully operational members of Europe’s satnav constellation.
E-GNSS R&D Day: From Invention to Market
E-GNSS R&D Day: From Invention to Market
During the Satellite Masters Conference, the European GNSS Agency (GSA) held a special session dedicated to innovative E-GNSS applications and research and development results.
As part of the Satellite Masters Conference in Berlin, the GSA Based on the many success stories presented during the GSA’s session on GNSS R&D funding, clearly there has never been a better time to invest in space.Based on the many success stories presented during the GSA’s session on GNSS R&D funding, clearly there has never been a better time to invest in space.
organised a full-day session on European Global Navigation Satellite Systems (E-GNSS) research and development results, as well as implementation activities. The innovative projects showcased during the event are all helping to accelerate the development of a European market for satellite navigation applications and create new opportunities for European industry.
During the Satellite Masters Conference, the European GNSS Agency (GSA) held a special session dedicated to innovative E-GNSS applications and research and development results.
As part of the Satellite Masters Conference in Berlin, the GSA Based on the many success stories presented during the GSA’s session on GNSS R&D funding, clearly there has never been a better time to invest in space.Based on the many success stories presented during the GSA’s session on GNSS R&D funding, clearly there has never been a better time to invest in space.
organised a full-day session on European Global Navigation Satellite Systems (E-GNSS) research and development results, as well as implementation activities. The innovative projects showcased during the event are all helping to accelerate the development of a European market for satellite navigation applications and create new opportunities for European industry.
GSA - European GNSS Agency (via noodls) / European Global Navigation Satellite Systems: From Invention to Market
GSA - European GNSS Agency (via noodls) / European Global Navigation Satellite Systems: From Invention to Market
During the Satellite Masters Conference, the European GNSS Agency (GSA) held a special session dedicated to innovative E-GNSS applications and research and development results. - See more at: http://www.noodls.com/viewNoodl/30732402/gsa---european-gnss-agency/european-global-navigation-satellite-systems-from-invention#sthash.qeHn7msp.dpuf
During the Satellite Masters Conference, the European GNSS Agency (GSA) held a special session dedicated to innovative E-GNSS applications and research and development results. - See more at: http://www.noodls.com/viewNoodl/30732402/gsa---european-gnss-agency/european-global-navigation-satellite-systems-from-invention#sthash.qeHn7msp.dpuf
Highlights from the Grand-Daddy of All GNSS Technical Conferences : GPS World
Highlights from the Grand-Daddy of All GNSS Technical Conferences : GPS World
The ION GNSS+ 2015 Conference once again fielded a jam-packed agenda of papers on subjects from world-wide constellation updates, through GNSS integrity, indoor navigation demonstrations, multi-constellation/function chipsets, interference mitigation and jamming detection, privacy issues, and many other very interesting subjects. That’s GNSS+ in the conference name, as in “plus,” denoting the many other positioning, navigation, and timing technologies it covers.
The ION GNSS+ 2015 Conference once again fielded a jam-packed agenda of papers on subjects from world-wide constellation updates, through GNSS integrity, indoor navigation demonstrations, multi-constellation/function chipsets, interference mitigation and jamming detection, privacy issues, and many other very interesting subjects. That’s GNSS+ in the conference name, as in “plus,” denoting the many other positioning, navigation, and timing technologies it covers.
European GNSS R&D: There’s an App for That! : GPS World
European GNSS R&D: There’s an App for That! : GPS World
A free app for both iOS and Android features the results of European GNSS Agency (GSA) supported research and development initiatives. The new EGNSS Research and Development (R&D) application highlights the tangible results coming out of the 7th Framework Programme (FP7) and is designed to serve as inspiration for those participating in the Horizon 2020 (H2020) period.
A free app for both iOS and Android features the results of European GNSS Agency (GSA) supported research and development initiatives. The new EGNSS Research and Development (R&D) application highlights the tangible results coming out of the 7th Framework Programme (FP7) and is designed to serve as inspiration for those participating in the Horizon 2020 (H2020) period.
On the Road to Driverless : GPS World
On the Road to Driverless : GPS World
Land-vehicle autonomous navigation requires centimeter-level qualification tools to enable confidence build-up for delivery to open-road traffic insertion. External positioning sensors over a dedicated road section can be replaced with an embedded high-accuracy, highly responsive epoch-by-epoch differential GNSS receiver coupled with an inertial navigation system. The demonstrated absolute accuracy and mobility extends the potential test area and minimizes cost for multi-environment validation.
Journée GNSS & Science | Institut
Journée GNSS & Science | Institut
Le Bureau des longitudes, l’Association française de topographie (AFT), la commission GeoPos du CNIG, le Comité national français de géodésie et géophysique (CNFGG), l’Institut français de navigation (IFN), le centre national de la recherche scientifique (CNRS), l’Académie de l’air et de l’espace, l’Académie de marine organisent, avec le support du Centre national d’études spatiales (CNES) et de l’IGN, une Journée sur le thème : « Les systèmes globaux de navigation par satellite (GNSS) et la Science ».
Cet évènement se tiendra le 29 janvier 2015 dans la salle de l’espace du CNES à Paris.
Austria invests in satellite-supported technology to determine train positions - Railway Technology
Austria invests in satellite-supported technology to determine train positions - Railway Technology
A consortium led by Germany's Berner & Mattner Systemtechnik has been awarded a research project to study the use of satellite-supported technology in determining train positions
A consortium led by Germany's Berner & Mattner Systemtechnik has been awarded a research project to study the use of satellite-supported technology in determining train positions
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