GLONASS Services - Revision history

Gema.Cueto: Updated reference ICD/SDD links

2026-04-17T13:59:43Z

Updated reference ICD/SDD links

← Older revision		Revision as of 13:59, 17 April 2026
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	* Navigation message transmitted at 50 bps, and 100 Hz auxiliary meander sequence.		* Navigation message transmitted at 50 bps, and 100 Hz auxiliary meander sequence.
	Given sequences are used for modulation of carriers in L1 and L2 sub-bands when generating standard accuracy signals.		Given sequences are used for modulation of carriers in L1 and L2 sub-bands when generating standard accuracy signals.
	PR ranging code is a sequence of maximum length of shift register with a period 1 millisecond and bit rate 511 kbps. PR ranging code is sampled at the output of 7th stage of the 9-stage shift register. The initialization vector to generate this sequence is (111111111). The first character of the PR ranging code is the first character in the group 111111100, and it is repeated every 1 millisecond. The generating polynomial, which corresponds to the 9-stage shift register, is G(X) = 1 + X5 + X9.<ref name="ICD-GLONASS-eng">[~~http~~://~~rniikp~~.~~ru/en/pages~~/~~about~~/~~publ~~/~~ICD_GLONASS_eng~~.pdf ~~GLONASS~~ Interface Control Document, Edition 5.1]</ref>		PR ranging code is a sequence of maximum length of shift register with a period 1 millisecond and bit rate 511 kbps. PR ranging code is sampled at the output of 7th stage of the 9-stage shift register. The initialization vector to generate this sequence is (111111111). The first character of the PR ranging code is the first character in the group 111111100, and it is repeated every 1 millisecond. The generating polynomial, which corresponds to the 9-stage shift register, is G(X) = 1 + X5 + X9.<ref name="ICD-GLONASS-eng">[https://unavco.knowledgebase.co/assets/727/ikd51en.pdf Interface Control Document, Edition 5.1]</ref>

	==High Precision Service (HP)==		==High Precision Service (HP)==

Filipe.Pelica: Included editor logo.

2014-09-18T17:16:14Z

Included editor logo.

← Older revision		Revision as of 17:16, 18 September 2014
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	\|Level=Basic		\|Level=Basic
	\|YearOfPublication=2011		\|YearOfPublication=2011
			\|Logo=GMV
	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}

Filipe.Pelica: fixed broken link

2014-05-29T14:45:25Z

fixed broken link

← Older revision		Revision as of 14:45, 29 May 2014
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	GLONASS is not degraded artiﬁcially by the system operators. Neither there are plans to introduce such measures in future.		GLONASS is not degraded artiﬁcially by the system operators. Neither there are plans to introduce such measures in future.

	The GLONASS P-code never was published by the system operators, but it was made known to the scientific community. This means, the GLONASS P-code is fully available. However, along with the P-code not being published by the system operators, it neither was officially released for use outside the Russian Armed Forces. Instead, they reserve the right to alter the code in future. This keeps a number of potential users and receiver manufacturers from actually implementing the GLONASS P-code.<ref name="rossbach-udo">[http://~~ub.unibw~~-~~muenchen~~.de/~~dissertationen~~/~~ediss/rossbach-udo/inhalt.pdf~~ Positioning and Navigation Using the Russian Satellite System GLONASS, Udo Roßbac]</ref>		The GLONASS P-code never was published by the system operators, but it was made known to the scientific community. This means, the GLONASS P-code is fully available. However, along with the P-code not being published by the system operators, it neither was officially released for use outside the Russian Armed Forces. Instead, they reserve the right to alter the code in future. This keeps a number of potential users and receiver manufacturers from actually implementing the GLONASS P-code.<ref name="rossbach-udo">[http://d-nb.info/969738064/34 Positioning and Navigation Using the Russian Satellite System GLONASS, Udo Roßbac]</ref>

	==Military Signal Access to India==		==Military Signal Access to India==

Carlos.Lopez at 11:09, 23 February 2012

2012-02-23T11:09:25Z

← Older revision		Revision as of 11:09, 23 February 2012
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	{{Article Infobox2		{{Article Infobox2
	\|Category=GLONASS		\|Category=GLONASS
	\|Editors=GMV ~~A.D.~~		\|Editors=GMV
	\|Level=Basic		\|Level=Basic
	\|YearOfPublication=2011		\|YearOfPublication=2011

Carlos.Lopez at 10:16, 23 February 2012

2012-02-23T10:16:24Z

← Older revision		Revision as of 10:16, 23 February 2012
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	{{Article Infobox2		{{Article Infobox2
	\|Category=GLONASS		\|Category=GLONASS
	\|~~Authors~~=GMV		\|Editors=GMV A.D.
	\|Level=Basic		\|Level=Basic
	\|YearOfPublication=2011		\|YearOfPublication=2011
	~~\|Logo=GMV~~
	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}

Angel.Gavin at 10:04, 2 December 2011

2011-12-02T10:04:46Z

← Older revision		Revision as of 10:04, 2 December 2011
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	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}
	Equivalent to the Standard Positioning Service (SPS) and the Precise Positioning Service (PPS) of GPS, GLONASS provides a standard precision (SP) navigation signal and a high precision (HP) navigation signal~~. These signals are sometimes also referred to as~~ Channel of Standard Accuracy (CSA) and Channel of High Accuracy (CHA), respectively.		Equivalent to the Standard Positioning Service (SPS) and the Precise Positioning Service (PPS) of GPS, GLONASS provides a standard precision (SP) navigation signal and a high precision (HP) navigation signal, namely the Channel of Standard Accuracy (CSA) and Channel of High Accuracy (CHA), respectively.

	==Standard Precision Service (SP)==		==Standard Precision Service (SP)==

Rui.Pereira at 18:06, 8 November 2011

2011-11-08T18:06:11Z

← Older revision		Revision as of 18:06, 8 November 2011
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	{{Article Infobox2		{{Article Infobox2
	\|Category=GLONASS		\|Category=GLONASS
	~~\|Title={{PAGENAME}}~~
	\|Authors=GMV		\|Authors=GMV
	\|Level=Basic		\|Level=Basic
	\|YearOfPublication=2011		\|YearOfPublication=2011
	\|Logo=GMV		\|Logo=GMV
			\|Title={{PAGENAME}}
	}}		}}

	Equivalent to the Standard Positioning Service (SPS) and the Precise Positioning Service (PPS) of GPS, GLONASS provides a standard precision (SP) navigation signal and a high precision (HP) navigation signal. These signals are sometimes also referred to as Channel of Standard Accuracy (CSA) and Channel of High Accuracy (CHA), respectively.		Equivalent to the Standard Positioning Service (SPS) and the Precise Positioning Service (PPS) of GPS, GLONASS provides a standard precision (SP) navigation signal and a high precision (HP) navigation signal. These signals are sometimes also referred to as Channel of Standard Accuracy (CSA) and Channel of High Accuracy (CHA), respectively.

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	Originally, the Standard Precision signal was transmitted only on L1, whereas the High Accuracy code was transmitted both on L1 and L2. The modernization of GLONASS began with the launch of second generation of satellites, GLONASS-M. Since that moment on, a second civil signal on L2 band is transmitted, allowing user to cancel out the ionospheric refraction.		Originally, the Standard Precision signal was transmitted only on L1, whereas the High Accuracy code was transmitted both on L1 and L2. The modernization of GLONASS began with the launch of second generation of satellites, GLONASS-M. Since that moment on, a second civil signal on L2 band is transmitted, allowing user to cancel out the ionospheric refraction.
	Currently, with the first GLONASS-K sent into orbit, a third civil signal on L3 band is available for civilian users (for more information, please refer to [[~~Work in Progress:~~GLONASS Space Segment\| GLONASS Space Segment]]).		Currently, with the first GLONASS-K sent into orbit, a third civil signal on L3 band is available for civilian users (for more information, please refer to [[GLONASS Space Segment\| GLONASS Space Segment]]).

	The Standard Precision signals are generated by the Modulo-2 addition of the following three binary signals:		The Standard Precision signals are generated by the Modulo-2 addition of the following three binary signals:

Rui.Pereira: moved Work in Progress:GLONASS Services to GLONASS Services

2011-06-30T12:41:36Z

moved Work in Progress:GLONASS Services to GLONASS Services

← Older revision	Revision as of 12:41, 30 June 2011
(No difference)

Rui.Pereira at 16:14, 28 June 2011

2011-06-28T16:14:59Z

← Older revision		Revision as of 16:14, 28 June 2011
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	Originally, the Standard Precision signal was transmitted only on L1, whereas the High Accuracy code was transmitted both on L1 and L2. The modernization of GLONASS began with the launch of second generation of satellites, GLONASS-M. Since that moment on, a second civil signal on L2 band is transmitted, allowing user to cancel out the ionospheric refraction.		Originally, the Standard Precision signal was transmitted only on L1, whereas the High Accuracy code was transmitted both on L1 and L2. The modernization of GLONASS began with the launch of second generation of satellites, GLONASS-M. Since that moment on, a second civil signal on L2 band is transmitted, allowing user to cancel out the ionospheric refraction.
	Currently, with the first GLONASS-K sent into orbit, a third civil signal on L3 band is available for civilian users (for more information, please refer to [[GLONASS Space Segment\| GLONASS Space Segment]]).		Currently, with the first GLONASS-K sent into orbit, a third civil signal on L3 band is available for civilian users (for more information, please refer to [[Work in Progress:GLONASS Space Segment\| GLONASS Space Segment]]).

	The Standard Precision signals are generated by the Modulo-2 addition of the following three binary signals:		The Standard Precision signals are generated by the Modulo-2 addition of the following three binary signals:
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	GLONASS is not degraded artiﬁcially by the system operators. Neither there are plans to introduce such measures in future.		GLONASS is not degraded artiﬁcially by the system operators. Neither there are plans to introduce such measures in future.

	The GLONASS P-code never was published by the system operators, but it was made known to the ~~scientiﬁc~~ community. This means, the GLONASS P-code is fully available. However, along with the P-code not being published by the system operators, it neither was ~~oﬃcially~~ released for use outside the Russian Armed Forces. Instead, they reserve the right to alter the code in future. This keeps a number of potential users and receiver manufacturers from actually implementing the GLONASS P-code.<ref name="rossbach-udo">[http://ub.unibw-muenchen.de/dissertationen/ediss/rossbach-udo/inhalt.pdf Positioning and Navigation Using the Russian Satellite System GLONASS, Udo Roßbac]</ref>		The GLONASS P-code never was published by the system operators, but it was made known to the scientific community. This means, the GLONASS P-code is fully available. However, along with the P-code not being published by the system operators, it neither was officially released for use outside the Russian Armed Forces. Instead, they reserve the right to alter the code in future. This keeps a number of potential users and receiver manufacturers from actually implementing the GLONASS P-code.<ref name="rossbach-udo">[http://ub.unibw-muenchen.de/dissertationen/ediss/rossbach-udo/inhalt.pdf Positioning and Navigation Using the Russian Satellite System GLONASS, Udo Roßbac]</ref>

	==Military Signal Access to India==		==Military Signal Access to India==

Jose.Caro: /* High Precision Service (HP) */

2011-06-21T10:19:44Z

High Precision Service (HP)

← Older revision		Revision as of 10:19, 21 June 2011
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	The High Precision signal is broadcast in phase quadrature with the SP signal, effectively sharing the same carrier wave as the SP signal, but with a ten times higher bandwidth (5.11 Mbps) than the SP signal.<ref>[http://en.wikipedia.org/wiki/GLONASS GLONASS on Wikipedia]</ref>		The High Precision signal is broadcast in phase quadrature with the SP signal, effectively sharing the same carrier wave as the SP signal, but with a ten times higher bandwidth (5.11 Mbps) than the SP signal.<ref>[http://en.wikipedia.org/wiki/GLONASS GLONASS on Wikipedia]</ref>
	GLONASS is not degraded artiﬁcially by the system operators. Neither there are plans to introduce such measures in future.		GLONASS is not degraded artiﬁcially by the system operators. Neither there are plans to introduce such measures in future.
	A-S is the additional encrypting of the P-code, thus denying the non-military user access to this source of precise range measurements. Like with S/A, there is no such technique employed by GLONASS, nor is it planned to introduce anything like it in future.

	The GLONASS P-code never was published by the system operators, but it was made known to the scientiﬁc community. This means, the GLONASS P-code is fully available. However, along with the P-code not being published by the system operators, it neither was oﬃcially released for use outside the Russian Armed Forces. Instead, they reserve the right to alter the code in future. This keeps a number of potential users and receiver manufacturers from actually implementing the GLONASS P-code.<ref name="rossbach-udo">[http://ub.unibw-muenchen.de/dissertationen/ediss/rossbach-udo/inhalt.pdf Positioning and Navigation Using the Russian Satellite System GLONASS, Udo Roßbac]</ref>		The GLONASS P-code never was published by the system operators, but it was made known to the scientiﬁc community. This means, the GLONASS P-code is fully available. However, along with the P-code not being published by the system operators, it neither was oﬃcially released for use outside the Russian Armed Forces. Instead, they reserve the right to alter the code in future. This keeps a number of potential users and receiver manufacturers from actually implementing the GLONASS P-code.<ref name="rossbach-udo">[http://ub.unibw-muenchen.de/dissertationen/ediss/rossbach-udo/inhalt.pdf Positioning and Navigation Using the Russian Satellite System GLONASS, Udo Roßbac]</ref>