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

GALILEO Open Service: Difference between revisions

From Navipedia
Jump to navigation Jump to search
No edit summary
No edit summary
Line 12: Line 12:


==Purpose==
==Purpose==
The Galileo Open Service provides positioning, velocity and timing information that can be accessed free of direct charge. This service is suitable for mass-market applications, such as in-car navigation and hybridisation with mobile telephones. The timing service is synchronised with UTC when used with receivers in fixed locations. This timing service can be used for applications such as network synchronisation or scientific applications.
The Galileo Open Service (OS) provides positioning, velocity and timing information that can be accessed free of direct user charge. This service is suitable for mass-market applications, such as in-car navigation and hybridisation with mobile telephones. The Open Service is accessible to any user equipped with a receiver, with no authorisation required. While up to three separate signal frequencies are offered within the Open Service, cheap single-frequency receivers will be used for applications requiring only reduced accuracy. In general, Open Service applications will use a combination of Galileo and GPS signals, which will improve performance in severe environments such as urban areas. The timing service is synchronised with UTC when used with receivers in fixed locations. This timing service can be used for applications such as network synchronisation or scientific applications.<ref name="GALHLD"> [http://ec.europa.eu/dgs/energy_transport/galileo/doc/galileo_hld_v3_23_09_02.pdf Galileo Mission High Level Definition], v3, September 2002.</ref>  
 
There will be some services provided autonomously by Galileo and other services resulting from the combined use of Galileo and other systems. This leads to the classification of the Galileo services into four categories:<ref name="GALHLD"> [http://ec.europa.eu/dgs/energy_transport/galileo/doc/galileo_hld_v3_23_09_02.pdf Galileo Mission High Level Definition], v3, September 2002.</ref>  
The Open Service does not offer integrity information, and the determination of the quality of the signals will be left entirely to the users. There will be no service guarantee or liability from the Galileo Operating Company on the Open Service.<ref>[http://www.esa.int/esaNA/galileo.html ESA Galileo web page]</ref>
 
# GALILEO satellite-only services: These services will be provided worldwide and independently from other systems by combining the signals broadcast by the Galileo satellites. There is a wide range of possible applications with different operational requirements that have been grouped around the following five reference services:
#* [[GALILEO Open Service|GALILEO Open Service (OS)]].
#* [[GALILEO Safety-of-Life Service|GALILEO Safety of Life (SoL)]].
#* [[GALILEO Commercial Service|GALILEO Commercial Service(CS)]].
#* [[GALILEO Public Regulated Service|GALILEO Public Regulated Service (PRS)]].
#* [[GALILEO Search and Rescue Service|GALILEO Support to Search and Rescue Service (SAR)]].
# GALILEO locally assisted services: The Galileo satellite-only services can be enhanced on a local basis through a combination of local elements. The result will be the provision of local services.
# EGNOS services: [[EGNOS General Introduction|EGNOS ]] will provide over Europe an augmentation to GPS and GLONASS services. This service will allow for early experience in development of Galileo-like applications. The EGNOS services will be combined with the Galileo satellite-only services. This will allow higher performance levels to be met by using different sources of integrity and navigation information.
# Galileo combined services: All the above-mentioned services will be combined with services provided by other navigation or communication systems. This possibility will improve the GNSS services availability at user level and open the door to a wide range of applications. The result will be the provision of combined services.
 
==GALILEO Services==
==GALILEO Services==
[[File:Galileo_Art.png‎‎|300px|Galileo Constelation (artistic interpretation)|thumb]]


The following Galileo satellite-only services will be provided worldwide and independently from other systems by combining Galileo signals-in-space:<ref>[http://www.esa.int/esaNA/galileo.html ESA Galileo web page]</ref>
The following Galileo satellite-only services will be provided worldwide and independently from other systems by combining Galileo signals-in-space:<ref>[http://www.esa.int/esaNA/galileo.html ESA Galileo web page]</ref>

Revision as of 16:43, 11 April 2011


GALILEOGALILEO
Title GALILEO Open Service
Author(s) GMV
Level Basic
Year of Publication 2011
Logo GMV.png


The GALILEO System will be an independent, global, European-controlled, satellite-based navigation system and will provide a number of guaranteed services to users equipped with Galileo-compatible receivers. The GALILEO Open Service results from a combination of open signals, free of user charge, and provides position and timing performance competitive with other GNSS systems.


Purpose

The Galileo Open Service (OS) provides positioning, velocity and timing information that can be accessed free of direct user charge. This service is suitable for mass-market applications, such as in-car navigation and hybridisation with mobile telephones. The Open Service is accessible to any user equipped with a receiver, with no authorisation required. While up to three separate signal frequencies are offered within the Open Service, cheap single-frequency receivers will be used for applications requiring only reduced accuracy. In general, Open Service applications will use a combination of Galileo and GPS signals, which will improve performance in severe environments such as urban areas. The timing service is synchronised with UTC when used with receivers in fixed locations. This timing service can be used for applications such as network synchronisation or scientific applications.[1]

The Open Service does not offer integrity information, and the determination of the quality of the signals will be left entirely to the users. There will be no service guarantee or liability from the Galileo Operating Company on the Open Service.[2]

GALILEO Services

The following Galileo satellite-only services will be provided worldwide and independently from other systems by combining Galileo signals-in-space:[3]

  • GALILEO Open Service (OS) results from a combination of open signals, free of user charge, and provides position and timing performance competitive with other GNSS systems;

During the Initial Operational Capability (IOC) phase, the GALILEO open service, the search and rescue service and the PRS will be provided. At this stage, however, accuracy and availability will not yet have reached their optimum levels.[4]

To know more information about Performances of each services see the article Galileo Performances.

Notes

References