If you wish to contribute or participate in the discussions about articles you are invited to contact the Editor

EGNOS Commercial Data Distribution Service: Difference between revisions

From Navipedia
Jump to navigation Jump to search
No edit summary
 
(8 intermediate revisions by the same user not shown)
Line 7: Line 7:
|Title={{PAGENAME}}
|Title={{PAGENAME}}
}}
}}
The EGNOS Commercial Data Distribution Service (CDDS) represents the provision of additional data for professional users not provided by the EGNOS signal broadcast by geostationary satellites but by other distribution channels.
The EGNOS Commercial Data Distribution Service (CDDS) represents the provision of additional data for professional users not provided by the EGNOS signal broadcast by geostationary satellites but by other distribution channels. This service is currently provided through the [[EGNOS Data Access System (EDAS) | EGNOS Data Access System (EDAS)]].
The CDDS is offered on a controlled access basis, i.e. Internet based resources or cellular phones, and it is intended for ground based customers who require enhanced performances for commercial and professional users.


==First step towards EGNOS CDDS: EGNOS Data Access System (EDAS)==
==First step towards EGNOS CDDS: EGNOS Data Access System (EDAS)==
In order to gather user requirements for the final CDDS, The European Commission has leaded an initiative, The [[EGNOS Data Access System (EDAS) | EGNOS Data Access System (EDAS)]], to provide EGNOS data by making the following services available:<ref name=" Introduction to EDAS">[http://www.gsa.europa.eu/egnos/edas GSA's Introduction to EDAS]</ref><ref name=" EGNOS User Guide for Developers">[https://ec.europa.eu/commission/index_en  EGNOS User Guide for Developers]</ref>
The [[EGNOS Data Access System (EDAS) | EGNOS Data Access System (EDAS)]], provides the following services:<ref name=" Introduction to EDAS">[http://www.gsa.europa.eu/egnos/edas GSA's Introduction to EDAS]</ref><ref name=" SDD">[https://egnos-user-support.essp-sas.eu/new_egnos_ops/sites/default/files/library/official_docs/egnos_edas_sdd_in_force.pdf EGNOS EDAS Service Definition Document]</ref>
*Transmission of EGNOS data using the RTCM SC 104 standard (directly usable by maritime DGPS receivers).
*Transmission of EGNOS data using the RTCM SC 104 standard (directly usable by maritime DGPS receivers).
*Access to raw data from the RIMS network receivers.
*Access to raw data from the RIMS network receivers.
*Differential GNSS (DGNSS) corrections and [[Real Time Kinematics |RTK (RealTime Kinematic)]] messages for the EGNOS stations allowing users implementing advanced positioning techniques.


EDAS will constitute the means for the EGNOS multimodal service growth. It will also be a introduction to the EGNOS CDDS and it represents the main interface point for multimodal Service Providers in order to deliver EGNOS products in real-time, within guaranteed performance boundaries.<ref name=" The vehicle to the future EGNOS CDDS">[http://www.egnos-pro.esa.int/Publications/NAVITEC%202008/EDAS_THE_VEHICLE_TO_FUTURE_EGNOS_CDDS.pdf  The vehicle to the future EGNOS CDDS]</ref>
EDAS constitutes the means for the EGNOS multimodal service growth. It represents the main interface point for multimodal Service Providers in order to deliver EGNOS products in real-time, within guaranteed performance boundaries.<ref name=" The vehicle to the future EGNOS CDDS">[http://www.egnos-pro.esa.int/Publications/NAVITEC%202008/EDAS_THE_VEHICLE_TO_FUTURE_EGNOS_CDDS.pdf  The vehicle to the future EGNOS CDDS]</ref>


EDAS service has been provided in beta phase since 2009 and was officially declared available to EU users by the EC on 26 July 2012. The European Satellite Service Provider (ESSP)was the single point of access for the data collected and generated by the EGNOS infrastructure and it represents an intermediate step towards the definition of the EGNOS CDDS by the European Commission.<ref name=" ESSP Web Site">[http://www.essp-sas.eu/news/  ESSP Web Site]</ref>
EDAS service has been provided in beta phase since 2009 and was officially declared available to EU users by the EC on 26 July 2012. The European Satellite Service Provider (ESSP)was the single point of access for the data collected and generated by the EGNOS infrastructure and it represents an intermediate step towards the definition of the EGNOS CDDS by the European Commission.<ref name=" ESSP Web Site">[http://www.essp-sas.eu/news/  ESSP Web Site]</ref>
Line 34: Line 34:
===Location Based Services (LBS)===
===Location Based Services (LBS)===


[[File:LBS_SARFOS_picture.JPG| EGNOS CDDS : LBS Application  |250px|thumb|right]]
[[File:LBS_SARFOS_picture.JPG| EGNOS EDAS : LBS Application  |250px|thumb|right]]


The LBS sector include GNSS-enabled mobile phones, smartphones and services, and represents 52% of the global GNSS market.<ref name=" GNSS Applications EC Portal">[https://ec.europa.eu/commission/index_en   GNSS Applications EC Portal]</ref> To promote the development of EGNOS/EDAS based LBS applications, the EC has funded R&D projects to provide toolkits for manufacturers.
The LBS sector include GNSS-enabled mobile phones, smartphones and services, and represents an important part of the global GNSS market.<ref name="Market Report">[https://www.gsa.europa.eu/system/files/reports/market_report_issue_6_v2.pdf   GSA Market Report]</ref> To promote the development of EGNOS/EDAS based LBS applications, the EC funded R&D projects to provide toolkits for manufacturers.


In urban areas where acquiring satellite signals may be difficult and often provokes a loss of accuracy and performance degradation, EGNOS corrections could still be applied through the EGNOS CDDS.  
In urban areas where acquiring satellite signals may be difficult and often provokes a loss of accuracy and performance degradation, EGNOS corrections could still be applied through the EDAS. Some of the R&D projects developed in this frames are listed bellow and a the complete list of ongoing projects is described in detail in the EC GNSS Applications site.
Some of the latest R&D projects developed in this frames are listed bellow and a the complete list of ongoing projects is described in detail in the EC GNSS Applications site.<ref name=" GNSS Applications EC Portal"/>
*''PERNASVIP'': to develop a GNSS-based mobility service dedicated to visually disabled pedestrians in urban environment.<ref name=" PERNASVIP Web">[http://pernasvip.di.uoa.gr/index.php  PERNASVIP Web]</ref>
*''PERNASVIP'': to develop a GNSS-based mobility service dedicated to visually disabled pedestrians in urban environment.<ref name=" PERNASVIP Web">[http://pernasvip.di.uoa.gr/index.php  PERNASVIP Web]</ref>
*''ATLAS'': concerns the development of an assurance and authentication service for GNSS-derived time and position information for use in liability-critical LBS applications across a wide variety of market sectors.<ref name=" ATLAS Project">[http://www.gsa.europa.eu/autenticated-time-and-location-location-based-application-and-services ATLAS Project]</ref>
*''ATLAS'': concerns the development of an assurance and authentication service for GNSS-derived time and position information for use in liability-critical LBS applications across a wide variety of market sectors.<ref name=" ATLAS Project">[http://www.gsa.europa.eu/autenticated-time-and-location-location-based-application-and-services ATLAS Project]</ref>
Line 45: Line 44:
===Road Applications===
===Road Applications===
Intelligent transport systems for road transport represent an important segment of the GNSS market. The wide range of applications do not only cover in-car navigation, but also user charging for an efficient use of the road infrastructure, fleet management and logistics.
Intelligent transport systems for road transport represent an important segment of the GNSS market. The wide range of applications do not only cover in-car navigation, but also user charging for an efficient use of the road infrastructure, fleet management and logistics.
Road User Charging (RUC) is becoming a strategy for authorities to manage increasingly congested road networks throughout Europe. This approach implies recording journey information by using a GNSS receiver embedded in an OBU and such solutions aided by EGNOS through CDDS have been widely analyzed.<ref name=" SIGNATURE">[http://www.nsl.eu.com/SIGNATURE/Space_Applications_Paper_010_Sheridan.pdf SignatureI]</ref>
Road User Charging (RUC) is becoming a strategy for authorities to manage increasingly congested road networks throughout Europe. This approach implies recording journey information by using a GNSS receiver embedded in an OBU and such solutions aided by EGNOS through EDAS have been widely analyzed.<ref name=" SIGNATURE">[http://www.nsl.eu.com/SIGNATURE/Space_Applications_Paper_010_Sheridan.pdf SignatureI]</ref>


The EC contributes to the development of EGNOS based technologies for road applications by promoting contracts in this framework. Some of these projects are briefly presented hereafter:<ref name=" GNSS Applications EC Portal"/>
The EC contributes to the development of EGNOS based technologies for road applications by promoting contracts in this framework. Some of these projects are briefly presented hereafter:
*''GINA'': aims at investigating the factors which could enable the application of GNSS-based road pricing followed by a nationwide demonstration in the Netherlands.<ref name=" GINA Project">[http://www.gina-project.eu/  GINA Project]</ref>
*''GINA'': aims at investigating the factors which could enable the application of GNSS-based road pricing followed by a nationwide demonstration in the Netherlands.<ref name=" GINA Project">[https://www.gsa.europa.eu/gnss-innovative-road-applications-0 GINA Project]</ref>
*''SIGNATURE'': develops new features improving road user charging in terms of charging accuracy (correct cost per trip),charging integrity (probability and amount of overcharging) and charging availability (amount of charged usage).<ref name=" SIGNATURE Project">[http://www.gsa.europa.eu/simple-gnss-assisted-and-trusted-receiver-0 SIGNATURE Project]</ref>
*''SIGNATURE'': develops new features improving road user charging in terms of charging accuracy (correct cost per trip),charging integrity (probability and amount of overcharging) and charging availability (amount of charged usage).<ref name=" SIGNATURE Project">[http://www.gsa.europa.eu/simple-gnss-assisted-and-trusted-receiver-0 SIGNATURE Project]</ref>
*''GALAPAGOS'': develops a positioning system for logistic applications with a special focus on container tracking.<ref name=" GALAPAGOS Project"> GALAPAGOS Project</ref>
*''GALAPAGOS'': develops a positioning system for logistic applications with a special focus on container tracking.<ref name=" GALAPAGOS Project">[https://www.gsa.europa.eu/galileo-based-seamless-and-robust-positioning-applications-logistics-optimation-processes-0 GALAPAGOS Project]</ref>


===Rail and Maritime Applications===
===Rail and Maritime Applications===


[[File:container_ship.jpg| EGNOS CDDS – Maritime application  |250px|thumb|right]]
[[File:container_ship.jpg| EGNOS EDAS – Maritime application  |250px|thumb|right]]


The Mediterranean Introduction of GNSS Services (METIS)<ref name=" EGNOS demonstrations in the Mediterranean Area">[http://galileo.cs.telespazio.it/metis/public/METIS%20Leaflets/METIS-leaflet-CS.pdf  EGNOS demonstrations in the Mediterranean Area]</ref> is an EGNOS demonstration that implements EGNOS use in transport domains over the Euro-Mediterranean area, to prepare market for Galileo.  
The Mediterranean Introduction of GNSS Services (METIS)<ref name=" EGNOS demonstrations in the Mediterranean Area">[http://galileo.cs.telespazio.it/metis/public/METIS%20Leaflets/METIS-leaflet-CS.pdf  EGNOS demonstrations in the Mediterranean Area]</ref> is an EGNOS demonstration that implements EGNOS use in transport domains over the Euro-Mediterranean area, to prepare market for Galileo.  


This project relies not only on the EGNOS Signal In Space (SIS) but also on the distribution of EGNOS products via EDAS. Moreover it identified opportunities for EGNOS CDDS in the Mediterranean area for the next decade by proving technical feasibility and quantified benefits.
This project relied not only on the EGNOS Signal In Space (SIS) but also on the distribution of EGNOS products via EDAS. Moreover it identified opportunities for EDAS in the Mediterranean area for the next decade by proving technical feasibility and quantified benefits.


SAFEPORT<ref name=" SAFEPORT Project">[http://www.gsa.europa.eu/safe-port-operations-using-egnos-sol-services SAFEPORT Project]</ref> is another project developed in the frame of Active Vessel Traffic Management that exploits the EGNOS accuracy, reliability and safety of life aspects by means of the EGNOS [[ EGNOS Safety of Life Service| Safety of Life]] and CDDS services.
SAFEPORT<ref name=" SAFEPORT Project">[http://www.gsa.europa.eu/safe-port-operations-using-egnos-sol-services SAFEPORT Project]</ref> is another project developed in the frame of Active Vessel Traffic Management that exploits the EGNOS accuracy, reliability and safety of life aspects by means of the EGNOS [[ EGNOS Safety of Life Service| Safety of Life]] and EDAS services.


===Civil protection and Goods Transportation===
===Civil protection and Goods Transportation===
In disaster situations, transport and communications infrastructures may become unavailable. However, relief operations need to rely on precise information as regards the location of rescue teams, topography or hazard maps.<ref name=" GNSS Applications EC Portal"/>
In disaster situations, transport and communications infrastructures may become unavailable. However, relief operations need to rely on precise information as regards the location of rescue teams, topography or hazard maps.


Besides, Oil&Gas Companies and Special Transportation companies, with a key role played by National Authorities who have the need to monitor the status of the traffic of dangerous goods in national territories represent an important user segment for the application of the EGNOS CDDS in safe transportation.<ref name=" EDAS Beta test findings">The EGNOS Service to Provide Ground Based Access to EGNOS – EDAS Beta test findings; Reinhard Blasi, GSA; Rafael Cardoso-Herce, Didier De Greef, ESSP; José Ramón López-Pérez, Francisco J. Jiménez-Roncero, AENA; Ángel Gavín-Alarcón, GMV; Monica Pesce, VVA</ref>
Besides, Oil&Gas Companies and Special Transportation companies, with a key role played by National Authorities who have the need to monitor the status of the traffic of dangerous goods in national territories represent an important user segment for the application of the EDAS in safe transportation.<ref name=" EDAS Beta test findings">The EGNOS Service to Provide Ground Based Access to EGNOS – EDAS Beta test findings; Reinhard Blasi, GSA; Rafael Cardoso-Herce, Didier De Greef, ESSP; José Ramón López-Pérez, Francisco J. Jiménez-Roncero, AENA; Ángel Gavín-Alarcón, GMV; Monica Pesce, VVA</ref>


EGNOS CDDS based tracking for the tracking & tracing services for the regulated control of dangerous material transport are presently demonstrated and proven in real-life cases involving Italian industry and authorities<ref name=" Transport of Dangerous material"> EGNOS in support of safe transport of Dangerous material: the joint experience of MENTORE and ENI; A. Di Fazio, Telespazio S.p.A; D. Pizzorni, Eni - Refining & Marketing, Logistica Secondari; M. Zazza, Ministero dei Trasporti Direzione Generale dei Sistemi Informatici e Statistici</ref> and it has been shown that commercial transport operators and users can benefit from effective shipment, whereas Law enforcement agencies take advantages from guaranteed information related to position, travelling times and route.
EDAS based tracking for the tracking & tracing services for the regulated control of dangerous material transport are presently demonstrated and proven in real-life cases involving Italian industry and authorities<ref name=" Transport of Dangerous material"> EGNOS in support of safe transport of Dangerous material: the joint experience of MENTORE and ENI; A. Di Fazio, Telespazio S.p.A; D. Pizzorni, Eni - Refining & Marketing, Logistica Secondari; M. Zazza, Ministero dei Trasporti Direzione Generale dei Sistemi Informatici e Statistici</ref> and it has been shown that commercial transport operators and users can benefit from effective shipment, whereas Law enforcement agencies take advantages from guaranteed information related to position, travelling times and route.


===Agriculture===
===Agriculture===
Line 87: Line 86:
===Research and Development===
===Research and Development===
EDAS can facilitate EGNOS Evolution activities and a significant number of R&D activities. One such initiative is the magicSBAS product.  
EDAS can facilitate EGNOS Evolution activities and a significant number of R&D activities. One such initiative is the magicSBAS product.  
magicSBAS is an Augmentation System that collects GPS and GLONASS data (measurements and ephemeris) from a regional network of reference stations, computes satellite orbits and clocks, ionospheric and integrity information, and broadcasts messages to the final user via Internet.<ref name=" GMV´s magicSBAS Web Site">[http://www.gmv.com/en/space/magicSBAS/ GMV´s magicSBAS Web Site]</ref>
magicSBAS is an Augmentation System that collects GNSS data (measurements and ephemeris) from a regional network of reference stations, computes satellite orbits and clocks, ionospheric and integrity information, and broadcasts messages to the final user via Internet.<ref name=" GMV´s magicSBAS Web Site">[https://www.gmv.com/en/Products/magicSBAS/ GMV´s magicSBAS Web Site]</ref>


==Notes==
==Notes==

Latest revision as of 10:51, 12 June 2020


EGNOSEGNOS
Title EGNOS Commercial Data Distribution Service
Edited by GMV
Level Basic
Year of Publication 2011
Logo GMV.png

The EGNOS Commercial Data Distribution Service (CDDS) represents the provision of additional data for professional users not provided by the EGNOS signal broadcast by geostationary satellites but by other distribution channels. This service is currently provided through the EGNOS Data Access System (EDAS).

First step towards EGNOS CDDS: EGNOS Data Access System (EDAS)

The EGNOS Data Access System (EDAS), provides the following services:[1][2]

  • Transmission of EGNOS data using the RTCM SC 104 standard (directly usable by maritime DGPS receivers).
  • Access to raw data from the RIMS network receivers.
  • Differential GNSS (DGNSS) corrections and RTK (RealTime Kinematic) messages for the EGNOS stations allowing users implementing advanced positioning techniques.

EDAS constitutes the means for the EGNOS multimodal service growth. It represents the main interface point for multimodal Service Providers in order to deliver EGNOS products in real-time, within guaranteed performance boundaries.[3]

EDAS service has been provided in beta phase since 2009 and was officially declared available to EU users by the EC on 26 July 2012. The European Satellite Service Provider (ESSP)was the single point of access for the data collected and generated by the EGNOS infrastructure and it represents an intermediate step towards the definition of the EGNOS CDDS by the European Commission.[4]

EGNOS CDDS Applications

Service providers can exploit the CDDS to provide added value to final users in various domains and applications such as the ones highlighted[5]:

  • Applications for individual handsets and mobile phones (LBS)
  • Road transport
  • Maritime & Rail transport
  • Civil protection and Goods Transportation
  • Agriculture
  • Aviation
  • Timing and synchronization
  • Mapping and Surveying


There are a series of pioneer R&D projects in the aforementioned domains that make use of EGNOS through EDAS. Some of them are detailed hereafter:

Location Based Services (LBS)

EGNOS EDAS : LBS Application

The LBS sector include GNSS-enabled mobile phones, smartphones and services, and represents an important part of the global GNSS market.[6] To promote the development of EGNOS/EDAS based LBS applications, the EC funded R&D projects to provide toolkits for manufacturers.

In urban areas where acquiring satellite signals may be difficult and often provokes a loss of accuracy and performance degradation, EGNOS corrections could still be applied through the EDAS. Some of the R&D projects developed in this frames are listed bellow and a the complete list of ongoing projects is described in detail in the EC GNSS Applications site.

  • PERNASVIP: to develop a GNSS-based mobility service dedicated to visually disabled pedestrians in urban environment.[7]
  • ATLAS: concerns the development of an assurance and authentication service for GNSS-derived time and position information for use in liability-critical LBS applications across a wide variety of market sectors.[8]

Road Applications

Intelligent transport systems for road transport represent an important segment of the GNSS market. The wide range of applications do not only cover in-car navigation, but also user charging for an efficient use of the road infrastructure, fleet management and logistics. Road User Charging (RUC) is becoming a strategy for authorities to manage increasingly congested road networks throughout Europe. This approach implies recording journey information by using a GNSS receiver embedded in an OBU and such solutions aided by EGNOS through EDAS have been widely analyzed.[9]

The EC contributes to the development of EGNOS based technologies for road applications by promoting contracts in this framework. Some of these projects are briefly presented hereafter:

  • GINA: aims at investigating the factors which could enable the application of GNSS-based road pricing followed by a nationwide demonstration in the Netherlands.[10]
  • SIGNATURE: develops new features improving road user charging in terms of charging accuracy (correct cost per trip),charging integrity (probability and amount of overcharging) and charging availability (amount of charged usage).[11]
  • GALAPAGOS: develops a positioning system for logistic applications with a special focus on container tracking.[12]

Rail and Maritime Applications

EGNOS EDAS – Maritime application

The Mediterranean Introduction of GNSS Services (METIS)[13] is an EGNOS demonstration that implements EGNOS use in transport domains over the Euro-Mediterranean area, to prepare market for Galileo.

This project relied not only on the EGNOS Signal In Space (SIS) but also on the distribution of EGNOS products via EDAS. Moreover it identified opportunities for EDAS in the Mediterranean area for the next decade by proving technical feasibility and quantified benefits.

SAFEPORT[14] is another project developed in the frame of Active Vessel Traffic Management that exploits the EGNOS accuracy, reliability and safety of life aspects by means of the EGNOS Safety of Life and EDAS services.

Civil protection and Goods Transportation

In disaster situations, transport and communications infrastructures may become unavailable. However, relief operations need to rely on precise information as regards the location of rescue teams, topography or hazard maps.

Besides, Oil&Gas Companies and Special Transportation companies, with a key role played by National Authorities who have the need to monitor the status of the traffic of dangerous goods in national territories represent an important user segment for the application of the EDAS in safe transportation.[15]

EDAS based tracking for the tracking & tracing services for the regulated control of dangerous material transport are presently demonstrated and proven in real-life cases involving Italian industry and authorities[16] and it has been shown that commercial transport operators and users can benefit from effective shipment, whereas Law enforcement agencies take advantages from guaranteed information related to position, travelling times and route.

Agriculture

The costs associated with agriculture are on the rise and environmental demands are gaining ground by the day, meaning efficient and sustainable farming solutions are needed more than ever. EGNOS offers an affordable solution to move towards precision agriculture. In doing so, it enhances precision, eliminates waste, saves time, reduces fatigue, optimizes the use of equipment (thus extending its lifetime) and increases crop yields. In order to demonstrate the impact of using EGNOS in the European agriculture, a few indicative data are given:

  • A 30% is the reduction in the amount of labour needed for organic farming when using E-GNSS.
  • A 82% is the percentage of European farmers relying on EGNOS to enhance precision agriculture
  • A 21% is the yearly growth rate of revenues of Asset management in the period 2013-2025

Aviation

Aviation is the key market segment for European GNSS. In fact, EGNOS was designed for aviation. In brief, GNSS programmes like EGNOS have revolutionized the way we fly. It has created more access to small airports, increased safety and facilitated business across Europe. Across the commercial, regional, general and business aviation sectors and from airports to OEMs and the end user - everyone is benefitting from EGNOS.

Timing and synchronization

Computer and telecommunication networks around the world need extremely accurate clock references. EGNOS broadcasts the reliable time standard with the unprecedented accuracy that these networks demand.

Mapping and surveying

By providing sub-meter-level accuracy with minimal investment, EGNOS is a cost-effective, entry-level solution for the mapping and surveying sector. It satisfies the needs of mapping applications requiring enhanced GNSS positioning by providing added value – free of charge. As a result, municipalities, forestry authorities, utilities and other users are benefiting from EGNOS performance in mapping.

Research and Development

EDAS can facilitate EGNOS Evolution activities and a significant number of R&D activities. One such initiative is the magicSBAS product. magicSBAS is an Augmentation System that collects GNSS data (measurements and ephemeris) from a regional network of reference stations, computes satellite orbits and clocks, ionospheric and integrity information, and broadcasts messages to the final user via Internet.[17]

Notes

References

  1. ^ GSA's Introduction to EDAS
  2. ^ EGNOS EDAS Service Definition Document
  3. ^ The vehicle to the future EGNOS CDDS
  4. ^ ESSP Web Site
  5. ^ EGNOS Applications
  6. ^ GSA Market Report
  7. ^ PERNASVIP Web
  8. ^ ATLAS Project
  9. ^ SignatureI
  10. ^ GINA Project
  11. ^ SIGNATURE Project
  12. ^ GALAPAGOS Project
  13. ^ EGNOS demonstrations in the Mediterranean Area
  14. ^ SAFEPORT Project
  15. ^ The EGNOS Service to Provide Ground Based Access to EGNOS – EDAS Beta test findings; Reinhard Blasi, GSA; Rafael Cardoso-Herce, Didier De Greef, ESSP; José Ramón López-Pérez, Francisco J. Jiménez-Roncero, AENA; Ángel Gavín-Alarcón, GMV; Monica Pesce, VVA
  16. ^ EGNOS in support of safe transport of Dangerous material: the joint experience of MENTORE and ENI; A. Di Fazio, Telespazio S.p.A; D. Pizzorni, Eni - Refining & Marketing, Logistica Secondari; M. Zazza, Ministero dei Trasporti Direzione Generale dei Sistemi Informatici e Statistici
  17. ^ GMV´s magicSBAS Web Site
Retrieved from "https://gssc.esa.int/navipedia/index.php?title=EGNOS_Commercial_Data_Distribution_Service&oldid=15334"