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The System for Differential Corrections and Monitoring (SDCM) is the SBAS currently being developed in the Russian Federation<ref name="SDCM_WEB">[http://www.sdcm.ru/index_eng.html SDCM home page.]</ref><ref name="SDCM_INGNSS"/> as a component of GLONASS.<ref name="SDCM_ION_2011>System for Differential Correction and Monitoring Update, Sergey KARUTIN,  Deputy head of division, Russian Space Systems, presented at ION GNSS 2011</ref>
The System for Differential Corrections and Monitoring (SDCM) is the SBAS currently being developed in the Russian Federation<ref name="SDCM_WEB">[http://www.sdcm.ru/index_eng.html SDCM home page.]</ref><ref name="SDCM_INGNSS"/> as a component of GLONASS.<ref name="SDCM_ION_2011">System for Differential Correction and Monitoring Update, Sergey KARUTIN,  Deputy head of division, Russian Space Systems, presented at ION GNSS 2011</ref>


The main differentiator of SDCM with respect to other SBAS systems is that it is conceived as an SBAS augmentation that would perform integrity monitoring of both GPS and GLONASS satellites, whereas the rest of current SBAS initiatives provide corrections and integrity just to GPS satellites.
The main differentiator of SDCM with respect to other SBAS systems is that it is conceived as an SBAS augmentation that would perform integrity monitoring of both GPS and GLONASS satellites, whereas the rest of current SBAS initiatives provide corrections and integrity just to GPS satellites.
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Brazil, Nicaragua, Indonesia and Australia will host each a station. There are plans to deploy two stations in Antarctica, namely in Bellingshausen and Novolazarevskaya, with potentially two more in Russkaya and Progress.<ref name="SDCM_ION_2011"/>
Brazil, Nicaragua, Indonesia and Australia will host each a station. There are plans to deploy two stations in Antarctica, namely in Bellingshausen and Novolazarevskaya, with potentially two more in Russkaya and Progress.<ref name="SDCM_ION_2011"/>
<gallery widths="200px">
Image:sdcm_overview.png|SDCM planned station network
</gallery>


The main central processing facility will be located in Moscow, and it will be complemented with a reserve facility.<ref name="SDCM_ION_2011"/>
The main central processing facility will be located in Moscow, and it will be complemented with a reserve facility.<ref name="SDCM_ION_2011"/>
Line 40: Line 44:
The uplink stations for the Luch 5A and 5B satellites will be deployed in Moscow as well, whilst the location of the one for Luch 5 has not been decided yet.<ref name="SDCM_ION_2011"/>
The uplink stations for the Luch 5A and 5B satellites will be deployed in Moscow as well, whilst the location of the one for Luch 5 has not been decided yet.<ref name="SDCM_ION_2011"/>


In addition to the GEO broadcast, it is foreseen that SDCM provides internet and GSM broadcast from a SISNeT server and an NTRIP server.<ref name="SDCM_ION_2011"/>
In addition to the GEO broadcast, it is foreseen that SDCM provides internet and GSM broadcast from a [http://www.egnos-pro.esa.int/sisnet/index.html SISNeT] server and an [http://www.ntrip.org/ NTRIP] server.<ref name="SDCM_ION_2011"/>


==SDCM Space Segment==
==SDCM Space Segment==
The system will also count with three geostationary satellites, which will be launched in the coming years. The [http://www.insidegnss.com InsideGNSS] stated that they ''apparently will be an extension of the Luch communications satellite design ([...]manufactured by Reshetnev) introduced in the 1980s as part of the Soviet Union’s satellite data relay network.''<ref name="SDCM_INGNSS"/> The planned location of these three satellites is as follows:
The SDCM Space Segment will be composed of 3+1 GEO satellites:<ref name="SDCM_ION_2011"/>
*Luch-5A: 16 degrees west.
 
*Luch-5B: 95 degrees east.
{| class="wikitable" align="center"
*Luch-4: 167 degrees east.
|+align="bottom" |''SDCM GEO Satellites''<ref name="SDCM_ION_2011"/>
! Satellite
! Location
! Launch
! Lifespan
|- align="center"
!Luch-5A
|16 deg West
|late 2011
|10 years
|- align="center"
!Luch-5B
|95 deg East
|2012
|10 years
|- align="center"
!Luch-5
|167 deg East
|2013/2014
|10/15 years
|- align="center"
!Luch-4
|
|2016
|
|}
 


==SDCM Objectives and Performances==
==SDCM Objectives and Performances==
With this architecture the whole Russian Federation will be covered as the SDCM Service Area.<ref name="SDCM_Munich"> Sergey Revnivykh ([http://www.roscosmos.ru/main.php?lang=en Russian Federal Space Agency]), ''GLONASS Updates'', Munich Satellite Navigation Congress, March 2011</ref>
With this architecture the whole Russian Federation will be covered as the SDCM Service Area.<ref name="SDCM_Munich"> Sergey Revnivykh ([http://www.roscosmos.ru/main.php?lang=en Russian Federal Space Agency]), ''GLONASS Updates'', Munich Satellite Navigation Congress, March 2011</ref>
<gallery widths="200px">
Image:sdcm_overview.png|SDCM planned station network
</gallery>


The SDCM objectives are:<ref name="SDCM_WEB"/>
The SDCM objectives are:<ref name="SDCM_WEB"/>
Line 61: Line 87:


The positioning performance provided by SDCM will be of 1 to 1.5 meters in the horizontal plane and of 2 to 3 meters in vertical. In addition, it is expected to offer a cm-level positioning service for users at a range of 200 kilometers of the reference stations.<ref name="SDCM_INGNSS">Glen Gibbons, [http://www.insidegnss.com/node/1631 ''Russia Building Out GLONASS Monitoring Network, Augmentation System''] Inside GNSS News, September/October 2009</ref>
The positioning performance provided by SDCM will be of 1 to 1.5 meters in the horizontal plane and of 2 to 3 meters in vertical. In addition, it is expected to offer a cm-level positioning service for users at a range of 200 kilometers of the reference stations.<ref name="SDCM_INGNSS">Glen Gibbons, [http://www.insidegnss.com/node/1631 ''Russia Building Out GLONASS Monitoring Network, Augmentation System''] Inside GNSS News, September/October 2009</ref>
==SDCM Near Future==
SDCM is expected to be certified in the coming years, as an SBAS counterpart to GPS WAAS and the European EGNOS. The SDCM certification will represent just the first step in the SDCM strategy which pursues also other broadcast means –potentially a polar MEO– with the aim of providing also a service to the North part of Russia.


==Notes==
==Notes==

Revision as of 18:11, 22 November 2011


Other SBASOther SBAS
Title SDCM
Author(s) GMV
Level Basic
Year of Publication 2011
Logo GMV.png

The System for Differential Corrections and Monitoring (SDCM) is the SBAS currently being developed in the Russian Federation[1][2] as a component of GLONASS.[3]

The main differentiator of SDCM with respect to other SBAS systems is that it is conceived as an SBAS augmentation that would perform integrity monitoring of both GPS and GLONASS satellites, whereas the rest of current SBAS initiatives provide corrections and integrity just to GPS satellites.

SDCM Ground Segment

The main components of the SDCM Ground Segment are a network of reference stations, central processing facilities, uplink stations and terrestrial broadcast means.

The SDCN network of reference stations will be composed of 19 stations in the Russian Federation and from 6 to 8 stations abroad.[3]

The stations in the Russian Federation are located as follows:[3]

  • Leningrad region (Pulkovo and Svetloe)
  • Moscow region (CDCM, Mendeleevo)
  • Krasnodar territory (Gelendzhik)
  • Stavropol territory (Kislovodsk)
  • Krasnoyarsk Territory (Krasnoyarsk and Norilsk)
  • Novosibirsk
  • Irkutsk
  • Petropavlovsk-Kamchatski
  • Chukotka Autonomous District (Bilibino)
  • Republic of Sakha (Tiksi)
  • Vladivostok
  • Magadan
  • Yuzhno-Sakhalinsk
  • Murmanskaya oblast (Lovozero)
  • Tumenskaya oblast (Noyabrsk)

Brazil, Nicaragua, Indonesia and Australia will host each a station. There are plans to deploy two stations in Antarctica, namely in Bellingshausen and Novolazarevskaya, with potentially two more in Russkaya and Progress.[3]

  • Sdcm overview.png

    SDCM planned station network

The main central processing facility will be located in Moscow, and it will be complemented with a reserve facility.[3]

The uplink stations for the Luch 5A and 5B satellites will be deployed in Moscow as well, whilst the location of the one for Luch 5 has not been decided yet.[3]

In addition to the GEO broadcast, it is foreseen that SDCM provides internet and GSM broadcast from a SISNeT server and an NTRIP server.[3]

SDCM Space Segment

The SDCM Space Segment will be composed of 3+1 GEO satellites:[3]

SDCM GEO Satellites[3]
Satellite Location Launch Lifespan
Luch-5A 16 deg West late 2011 10 years
Luch-5B 95 deg East 2012 10 years
Luch-5 167 deg East 2013/2014 10/15 years
Luch-4 2016


SDCM Objectives and Performances

With this architecture the whole Russian Federation will be covered as the SDCM Service Area.[4]

The SDCM objectives are:[1]

  • Integrity monitoring of GNSS satellites (GPS and GLONASS)
  • Provide differential corrections to GLONASS satellites
  • A posteriori detail analysis of GLONASS system performances.

The positioning performance provided by SDCM will be of 1 to 1.5 meters in the horizontal plane and of 2 to 3 meters in vertical. In addition, it is expected to offer a cm-level positioning service for users at a range of 200 kilometers of the reference stations.[2]

Notes


References

  1. ^ a b SDCM home page.
  2. ^ a b Glen Gibbons, Russia Building Out GLONASS Monitoring Network, Augmentation System Inside GNSS News, September/October 2009
  3. ^ a b c d e f g h i System for Differential Correction and Monitoring Update, Sergey KARUTIN, Deputy head of division, Russian Space Systems, presented at ION GNSS 2011
  4. ^ Sergey Revnivykh (Russian Federal Space Agency), GLONASS Updates, Munich Satellite Navigation Congress, March 2011
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