Galileo General Introduction - Revision history

Ignacio.Fernandez: Added link to the Galileo Signal Authentication Service page

2026-09-16T12:38:19Z

Added link to the Galileo Signal Authentication Service page

← Older revision		Revision as of 12:38, 16 September 2026
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	*[[Galileo Open Service Navigation Message Authentication\|Open Service navigation Message Authentication (OSNMA)]]: Free of charge supplementary service to the Galileo Open Service (OS), designed to enhance the reliability and security of the system. OSNMA ensures that the Galileo navigation messages received by users are authentic, confirming that they originate from the Galileo satellite constellation. By providing this layer of authentication, OSNMA helps protect against spoofing and signal manipulation, offering users greater confidence in the integrity of the data. This is especially crucial for applications requiring high precision and trust, such as aviation, maritime navigation, and critical infrastructure. OSNMA enhances the overall security of Galileo, aligning with Europe’s goal of offering secure and dependable GNSS services under civilian control. The incorporation of G2 satellites improves the robustness of this service, with advanced jamming and spoofing protection mechanisms to safeguard Galileo signals.		*[[Galileo Open Service Navigation Message Authentication\|Open Service navigation Message Authentication (OSNMA)]]: Free of charge supplementary service to the Galileo Open Service (OS), designed to enhance the reliability and security of the system. OSNMA ensures that the Galileo navigation messages received by users are authentic, confirming that they originate from the Galileo satellite constellation. By providing this layer of authentication, OSNMA helps protect against spoofing and signal manipulation, offering users greater confidence in the integrity of the data. This is especially crucial for applications requiring high precision and trust, such as aviation, maritime navigation, and critical infrastructure. OSNMA enhances the overall security of Galileo, aligning with Europe’s goal of offering secure and dependable GNSS services under civilian control. The incorporation of G2 satellites improves the robustness of this service, with advanced jamming and spoofing protection mechanisms to safeguard Galileo signals.

	*~~'''~~Signal Authentication Service (SAS)~~'''~~: Service which enables an authenticated positioning service by complementing the OSNMA with E6-based ranging authentication capabilities targeting to support civil applications.		*[[Galileo Signal Authentication Service\|Signal Authentication Service (SAS)]]: Service which enables an authenticated positioning service by complementing the OSNMA with E6-based ranging authentication capabilities targeting to support civil applications.

	*'''Galileo Emergency Warning Satellite Service (EWSS)''': Service which allows national civil protection authorities to rapidly transmit alerts to smartphones (or any Galileo-enabled device) in any place of the globe for enhanced emergency response and resilient risk management. The alert service is independent of the mobile communication infrastructure, and remains operational even when existing systems have been destroyed or are not available (e.g. network saturation or poor mobile network coverage).		*'''Galileo Emergency Warning Satellite Service (EWSS)''': Service which allows national civil protection authorities to rapidly transmit alerts to smartphones (or any Galileo-enabled device) in any place of the globe for enhanced emergency response and resilient risk management. The alert service is independent of the mobile communication infrastructure, and remains operational even when existing systems have been destroyed or are not available (e.g. network saturation or poor mobile network coverage).

Gema.Cueto: Updated reference ICD/SDD links

2026-04-17T11:40:21Z

Updated reference ICD/SDD links

← Older revision		Revision as of 11:40, 17 April 2026
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	==Galileo Signal Characteristics==		==Galileo Signal Characteristics==

	The Galileo navigation Signals are transmitted in the four frequency bands indicated in the next figure. These four frequency bands are the E5a, E5b, E6 and E1 bands. They provide a wide bandwidth for the transmission of the Galileo Signals.<ref name="Galileo OS Signal In Space ICD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/~~Galileo_OS_SIS_ICD_v2.1~~.pdf Galileo OS Signal In Space ICD]</ref>		The Galileo navigation Signals are transmitted in the four frequency bands indicated in the next figure. These four frequency bands are the E5a, E5b, E6 and E1 bands. They provide a wide bandwidth for the transmission of the Galileo Signals.<ref name="Galileo OS Signal In Space ICD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo_OS_SIS_ICD_in_force.pdf Galileo OS Signal In Space ICD]</ref>

	[[File:Galileo Frequency Plan.png\|571px\|Galileo Frequency Plan\|none\|thumb]]		[[File:Galileo Frequency Plan.png\|571px\|Galileo Frequency Plan\|none\|thumb]]

Gema.Cueto at 07:01, 10 July 2025

2025-07-10T07:01:15Z

← Older revision		Revision as of 07:01, 10 July 2025
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	In the case of the [[Galileo Public Regulated Service (PRS)\|Galileo Public Regulated Service (PRS)]], the [[GNSS Performances\|performance]] requirements include horizontal and vertical [[Accuracy\|accuracy]]. The [[Availability\|availability]] of the service should be 99.5%.		In the case of the [[Galileo Public Regulated Service (PRS)\|Galileo Public Regulated Service (PRS)]], the [[GNSS Performances\|performance]] requirements include horizontal and vertical [[Accuracy\|accuracy]]. The [[Availability\|availability]] of the service should be 99.5%.

	See the article [[Galileo Performances\|Galileo Performances] for further information.		See the article [[Galileo Performances\|Galileo Performances]] for further information.

Gema.Cueto at 09:57, 1 July 2025

2025-07-01T09:57:16Z

← Older revision		Revision as of 09:57, 1 July 2025
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	The following figures are an example of the positioning performances achieved during January 2025 (E1/E5a and E1/E5b):		The following figures are an example of the positioning performances achieved during January 2025 (E1/E5a and E1/E5b):

	'''~~IMAGE~~'''		<center>
	'~~''IMAGE~~'''		<gallery widths=350 heights=250>
	'''~~IMAGE~~'''		File:HPE for Galileo E1E5a users in January 2025.png
	'~~''IMAGE~~'''		File:HPE for Galileo 51E5b users in January 2025.png
			</gallery>
			'''''HPE statistics for Galileo users in January 2025.'''''
			</center>
			<center>
			<gallery widths=350 heights=250>
			File:VPE for Galileo E1E5a users in January 2025.png
			File:VPE for Galileo E1E5b users in January 2025.png
			</gallery>
			'''''VPE statistics for Galileo users in January 2025.'''''
			</center>

	Refer to [https://www.gsc-europa.eu/electronic-library/performance-reports/galileo-open-service-os#:~:text=The%20Galileo%20Open%20Service%20(OS)%20Performance%20Reports%20are,applicable%20Galileo%20Open%20Service%20Service%20Definition%20Document%20(SDD). EUSPA, Galileo Open Service Performance Reports] for quarterly published performance reports of Galileo OS.		Refer to [https://www.gsc-europa.eu/electronic-library/performance-reports/galileo-open-service-os#:~:text=The%20Galileo%20Open%20Service%20(OS)%20Performance%20Reports%20are,applicable%20Galileo%20Open%20Service%20Service%20Definition%20Document%20(SDD). EUSPA, Galileo Open Service Performance Reports] for quarterly published performance reports of Galileo OS.
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	The following figures are an example of the accuracy achieved during the period from January 2025 to March 2025 (only Galileo):		The following figures are an example of the accuracy achieved during the period from January 2025 to March 2025 (only Galileo):

	'''~~IMAGE~~'''		<center>
	'''~~IMAGE~~'''		<gallery widths=350 heights=150>
	'''~~IMAGE~~'''		File:HAS accuracy of the Galileo orbit corrections.png\|'''''HAS accuracy of the Galileo orbit corrections'''''
			File:HAS accuracy of the Galileo clock corrections.png\|'''''HAS accuracy of the Galileo clock corrections'''''
			File:HAS accuracy of the Galileo code biases.png\|'''''HAS accuracy of the Galileo code biases'''''
			</gallery>
			</center>

	Refer to [https://www.gsc-europa.eu/electronic-library/performance-reports/galileo-high-accuracy-service-has EUSPA, Galileo HAS Performance Reports] for quarterly published performance reports of Galileo HAS.		Refer to [https://www.gsc-europa.eu/electronic-library/performance-reports/galileo-high-accuracy-service-has EUSPA, Galileo HAS Performance Reports] for quarterly published performance reports of Galileo HAS.

Gema.Cueto: Fixed comments made by Natalia Castrillo Merlan (10/Jun/25). Pending on uploading missing images.

2025-06-27T12:01:04Z

Fixed comments made by Natalia Castrillo Merlan (10/Jun/25). Pending on uploading missing images.

Show changes

Gema.Cueto at 06:44, 2 December 2024

2024-12-02T06:44:50Z

← Older revision		Revision as of 06:44, 2 December 2024
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	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}
	Galileo is Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under civilian control. It is inter-operable with [[GPS General Introduction\|GPS]] and [[GLONASS General Introduction\|GLONASS]]. Galileo receivers compute their position in the [[GALILEO Reference Frame\|Galileo Reference System]] using satellite technology and based on [[An intuitive approach to the GNSS positioning\|~~triangulation~~ principles]].		Galileo is Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under civilian control. It is inter-operable with [[GPS General Introduction\|GPS]] and [[GLONASS General Introduction\|GLONASS]]. Galileo receivers compute their position in the [[GALILEO Reference Frame\|Galileo Reference System]] using satellite technology and based on [[An intuitive approach to the GNSS positioning\|trilateration principles]].

	The Galileo system started its initial services on December 15th, 2016.<ref>[http://europa.eu/rapid/press-release_IP-16-4366_en.htm Galileo goes live!]</ref> The services will evolve with the infrastructure deployment until the Full Operational Capability (FOC) is achieved.		The Galileo system started its initial services on December 15th, 2016.<ref>[http://europa.eu/rapid/press-release_IP-16-4366_en.htm Galileo goes live!]</ref> The services will evolve with the infrastructure deployment until the Full Operational Capability (FOC) is achieved.

Gema.Cueto: /* GALILEO Services */

2021-01-29T11:10:58Z

GALILEO Services

← Older revision		Revision as of 11:10, 29 January 2021
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	==GALILEO Services==		==GALILEO Services==
	The Galileo mission and services were elaborated during the initial definition phase in consultation with user communities and the Member States. The high-performance services that will be provided once Galileo system is fully operational, are the following:<ref name="Galileo services in European GNSS Service Centre portal">[https://www.gsc-europa.eu/galileo/services Galileo services in European GNSS Service Centre portal]</ref>		The Galileo mission and services were elaborated during the initial definition phase in consultation with user communities and the Member States. The high-performance services that will be provided once Galileo system is fully operational, are the following:<ref name="Galileo services in European GNSS Service Centre portal">[https://www.gsc-europa.eu/galileo/services Galileo services in European GNSS Service Centre portal]</ref>
	* [[GALILEO Open Service\|Open Service (OS)]]: With positioning accurate to one metre, the freely accessible Open Service targets the mass market and is intended for motor vehicle navigation and location-based mobile telephone services. Free to the user, it provides positioning and synchronization information intended for high-volume satellite radio navigation applications; Galileo Open Service will include in the short term an authentication mechanism through [[~~Galileo OS-NMA \|~~ Galileo Open Service Navigation Message Authentication]].		* [[GALILEO Open Service\|Open Service (OS)]]: With positioning accurate to one metre, the freely accessible Open Service targets the mass market and is intended for motor vehicle navigation and location-based mobile telephone services. Free to the user, it provides positioning and synchronization information intended for high-volume satellite radio navigation applications; Galileo Open Service will include in the short term an authentication mechanism through [[Galileo Open Service Navigation Message Authentication \| Galileo OS-NMA]].
	* [[GALILEO Commercial Service\|High Accuracy Service (HAS)]]: a service complementing the OS by providing an additional navigation signal and added value services in a different frequency band. The HAS signal can be encrypted in order to control the access to the Galileo HAS services;		* [[GALILEO Commercial Service\|High Accuracy Service (HAS)]]: a service complementing the OS by providing an additional navigation signal and added value services in a different frequency band. The HAS signal can be encrypted in order to control the access to the Galileo HAS services;
	* [[GALILEO Public Regulated Service\|Public Regulated Service (PRS)]]: The Public Regulated Service is restricted to government-authorised users, for sensitive applications which require a high level of service continuity. It will be encrypted and designed to be more robust, with anti-jamming mechanisms and reliable problem detection. This service is intended for security and strategic infrastructure (e.g. energy, telecommunications and finance);		* [[GALILEO Public Regulated Service\|Public Regulated Service (PRS)]]: The Public Regulated Service is restricted to government-authorised users, for sensitive applications which require a high level of service continuity. It will be encrypted and designed to be more robust, with anti-jamming mechanisms and reliable problem detection. This service is intended for security and strategic infrastructure (e.g. energy, telecommunications and finance);

Gema.Cueto at 11:10, 29 January 2021

2021-01-29T11:10:33Z

← Older revision		Revision as of 11:10, 29 January 2021
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	==GALILEO Services==		==GALILEO Services==
	The Galileo mission and services were elaborated during the initial definition phase in consultation with user communities and the Member States. The high-performance services that will be provided once Galileo system is fully operational, are the following:<ref name="Galileo services in European GNSS Service Centre portal">[https://www.gsc-europa.eu/galileo/services Galileo services in European GNSS Service Centre portal]</ref>		The Galileo mission and services were elaborated during the initial definition phase in consultation with user communities and the Member States. The high-performance services that will be provided once Galileo system is fully operational, are the following:<ref name="Galileo services in European GNSS Service Centre portal">[https://www.gsc-europa.eu/galileo/services Galileo services in European GNSS Service Centre portal]</ref>
	* [[GALILEO Open Service\|Open Service (OS)]]: With positioning accurate to one metre, the freely accessible Open Service targets the mass market and is intended for motor vehicle navigation and location-based mobile telephone services. Free to the user, it provides positioning and synchronization information intended for high-volume satellite radio navigation applications;		* [[GALILEO Open Service\|Open Service (OS)]]: With positioning accurate to one metre, the freely accessible Open Service targets the mass market and is intended for motor vehicle navigation and location-based mobile telephone services. Free to the user, it provides positioning and synchronization information intended for high-volume satellite radio navigation applications; Galileo Open Service will include in the short term an authentication mechanism through [[Galileo OS-NMA \| Galileo Open Service Navigation Message Authentication]].
	* [[GALILEO Commercial Service\|High Accuracy Service (HAS)]]: a service complementing the OS by providing an additional navigation signal and added value services in a different frequency band. The HAS signal can be encrypted in order to control the access to the Galileo HAS services;		* [[GALILEO Commercial Service\|High Accuracy Service (HAS)]]: a service complementing the OS by providing an additional navigation signal and added value services in a different frequency band. The HAS signal can be encrypted in order to control the access to the Galileo HAS services;
	* [[GALILEO Public Regulated Service\|Public Regulated Service (PRS)]]: The Public Regulated Service is restricted to government-authorised users, for sensitive applications which require a high level of service continuity. It will be encrypted and designed to be more robust, with anti-jamming mechanisms and reliable problem detection. This service is intended for security and strategic infrastructure (e.g. energy, telecommunications and finance);		* [[GALILEO Public Regulated Service\|Public Regulated Service (PRS)]]: The Public Regulated Service is restricted to government-authorised users, for sensitive applications which require a high level of service continuity. It will be encrypted and designed to be more robust, with anti-jamming mechanisms and reliable problem detection. This service is intended for security and strategic infrastructure (e.g. energy, telecommunications and finance);

Gema.Cueto at 11:06, 29 January 2021

2021-01-29T11:06:51Z

← Older revision		Revision as of 11:06, 29 January 2021
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	Galileo is Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under civilian control. It is inter-operable with [[GPS General Introduction\|GPS]] and [[GLONASS General Introduction\|GLONASS]]. Galileo receivers compute their position in the [[GALILEO Reference Frame\|Galileo Reference System]] using satellite technology and based on [[An intuitive approach to the GNSS positioning\|triangulation principles]].		Galileo is Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under civilian control. It is inter-operable with [[GPS General Introduction\|GPS]] and [[GLONASS General Introduction\|GLONASS]]. Galileo receivers compute their position in the [[GALILEO Reference Frame\|Galileo Reference System]] using satellite technology and based on [[An intuitive approach to the GNSS positioning\|triangulation principles]].

	The Galileo system started its initial services on December 15th, 2016<ref>[http://europa.eu/rapid/press-release_IP-16-4366_en.htm Galileo goes live!]</ref> The services will evolve with the infrastructure deployment until the Full Operational Capability (FOC) is achieved.		The Galileo system started its initial services on December 15th, 2016.<ref>[http://europa.eu/rapid/press-release_IP-16-4366_en.htm Galileo goes live!]</ref> The services will evolve with the infrastructure deployment until the Full Operational Capability (FOC) is achieved.

	==Introduction==		==Introduction==

Gema.Cueto at 11:06, 29 January 2021

2021-01-29T11:06:39Z

← Older revision		Revision as of 11:06, 29 January 2021
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	Galileo is Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under civilian control. It is inter-operable with [[GPS General Introduction\|GPS]] and [[GLONASS General Introduction\|GLONASS]]. Galileo receivers compute their position in the [[GALILEO Reference Frame\|Galileo Reference System]] using satellite technology and based on [[An intuitive approach to the GNSS positioning\|triangulation principles]].		Galileo is Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under civilian control. It is inter-operable with [[GPS General Introduction\|GPS]] and [[GLONASS General Introduction\|GLONASS]]. Galileo receivers compute their position in the [[GALILEO Reference Frame\|Galileo Reference System]] using satellite technology and based on [[An intuitive approach to the GNSS positioning\|triangulation principles]].

	The Galileo system started its initial services on December 15th, 2016<ref>[http://europa.eu/rapid/press-release_IP-16-4366_en.htm Galileo goes live!]</ref> ~~and it is expected to reach its~~ Full Operational Capability (FOC) ~~by 2020~~.		The Galileo system started its initial services on December 15th, 2016<ref>[http://europa.eu/rapid/press-release_IP-16-4366_en.htm Galileo goes live!]</ref> The services will evolve with the infrastructure deployment until the Full Operational Capability (FOC) is achieved.

	==Introduction==		==Introduction==