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{{Article Infobox2
{{Article Infobox2
|Category=COMPASS
|Category=BEIDOU
|Title={{PAGENAME}}
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|Authors=GMV.
|Level=Basic
|Level=Basic
|YearOfPublication=2011
|YearOfPublication=2011
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The BeiDou Navigation Satellite System (BDS), also known as BeiDou-2<ref name=BDS_STATUS> Compass/BeiDou Status, Jun Shen, BNStar Navigation Technology & System, Inc., Rome (Italy), June 11, 2009</ref>, is China’s second-generation satellite navigation system<ref name=BDS_STATUS/><ref name=BeiDou_Wiki>[https://en.wikipedia.org/wiki/Beidou_Navigation_Satellite_System BeiDou Navigation Satellite System in Wikipedia]</ref> that will be capable of providing positioning, navigation, and timing services to users on a continuous worldwide basis<ref name=BDS_WORLDWIDE>[ BeiDou China’s Rapidly Emerging GNSS, InsideGNSS, May/June 2014]</ref>.


Although the evolution of its regional navigation system towards a global solution started in 1997, the formal approval by the Government of the development and deployment of BDS System was done in 2006 and it is expected to provide global navigation services by 2020, similarly to the [[GPS General Introduction|GPS]], [[GLONASS General Introduction|GLONASS]] or [[GALILEO General Introduction|Galileo]] systems.<ref name=BDS_STATUS/>


The Compass Navigation Satellite System (CNSS), or BeiDou-2, is China’s second-generation satellite navigation system capable of providing positioning, navigation, and timing services to users on a continuous worldwide basis.
As of December 2011, the BeiDou system was officially announced to provide Initial Operational Service providing initial passive positioning navigation and timing services for the whole Asia-Pacific region with a constellation of 10 satellites (5 GEO satellites and 5 IGSO satellites)<ref name="China Daily">[http://europe.chinadaily.com.cn/business/2011-12/28/content_14343656.htm Satellite navigation system launched], China Daily Europe, December 2011.</ref><ref name=BeiDou_Wiki/>. During 2012, 5 additional satellites (1 GEO satellites and 4 MEO satellites) were launched increasing to 14 the number of satellites of the constellation. Until 2020, the system is going to launch the remaining satellites and [[BeiDou_Future_and_Evolutions|evolve]] towards global navigation capability.<ref name=BEIDOU_MUNICH_2011>China Satellite Navigation Office, ''Development of BeiDou Navigation Satellite System'', Munich Satellite Navigation Summit, 2011.</ref><ref name="China Daily" />.
 
The system has evolved from a regional system called BeiDou-1, and in the first phase will provide high-accuracy positioning services for users in China and its neighbouring regions. The long-term goal is to develop an independent ''global'' navigation satellite network similar to the GPS and GLONASS. <ref name=Chinese_today>[http://www.sinodefence.com/space/spacecraft/beidou2.asp Compass on the Chinese Defence Today website] </ref>
 
==Introduction==
 
According to the China National Space Administration, the development of the Chinese global navigation system should be carried out in three steps:
[[File:Beidou_navigation_system.png‎|COMPASS Logo|200px|thumb]]
 
*2000 - 2003: experimental BeiDou navigation system consisting of 3 satellites;
*by 2012: regional BeiDou navigation system covering China and neighboring regions;
*by 2020: global BeiDou navigation system, or Compass Navigation system.
 
The first two satellites, BeiDou-1A and  BeiDou-1B have been launched in 2000. The third satellite BeiDou-1C (as backup satellite), was put into orbit on 25 May 2003, meaning the establishment of the BeiDou-1 navigation system.
 
On November 2, 2006, China announced the 2nd generation Chinese navigation system, COMPASS, and that from 2008 BeiDou system would be evolved and would offer an open service with an accuracy of 10 meters, timing of 0.2 nanoseconds, speed of 0.2 meter/second. It followed that in February 2007, the fourth and also the last satellite of BeiDou-1 system, the BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was launched and put into orbit.
 
In April 2007, the first satellite of BeiDou-2, namely Compass-M1, whose purpose was to validate frequencies for the COMPASS constellation, was successfully put into its working orbit. The second BeiDou-2 constellation satellite Compass-G2 was launched on 15 April 2009. The third satellite (Compass-G1) was carried into its orbit by Long March 3C (LM-3C) carrier rocket  on January 17, 2010. On the 2nd of June 2010, the fourth satellite, Compass-G3, was launched successfully into orbit. The fifth orbiter, COMPASS-IGSO1, was launched into space by LM-3I carrier rocket from Xichang Satellite Launch Center on August 1, 2010. Three months later, on November 1, 2010, the sixth satellite,Compass-G4, was sent into orbit by LM-3C.  Another IGSO navigation satellite, COMPASS-IGSO2, has been launched on December 18, 2010.<ref>[http://en.wikipedia.org/wiki/Beidou_navigation_system Beidou Navigation System in Wikipedia]</ref><ref>[http://en.wikipedia.org/wiki/Compass_navigation_system COMPASS Navigation system in Wikipedia]</ref>


==COMPASS Related Articles==


The following articles include further information about different important topics related to a COMPASS:
==BeiDou Related Articles==
[[File:Beidou_navigation_system.png‎|BeiDou Logo|200px|thumb]]
The following articles include further information about different important topics related to a BeiDou:


*[[Work in Progres:COMPASS Architecture|COMPASS Architecture]]:
*[[BeiDou Architecture|BeiDou Architecture]]:
**[[Work in Progress:COMPASS Space Segment|COMPASS Space Segment]].
**[[BeiDou Space Segment|BeiDou Space Segment]];
**[[Work in Progress:COMPASS Ground Segment|COMPASS Ground Segment]].
**[[BeiDou Ground Segment|BeiDou Ground Segment]];
**[[Work in Progress:COMPASS User Segment|COMPASS User Segment]].
**[[BeiDou User Segment|BeiDou User Segment]].
*[[Work in Progress:COMPASS Receivers|COMPASS Receivers]].
*[[BeiDou Receivers|BeiDou Receivers]];
*[[Work in Progress:COMPASS Services|COMPASS Services]].
*[[BeiDou Services|BeiDou Services]];
*[[Work in Progress:COMPASS Performances|COMPASS Performances]].
*[[BeiDou Performances|BeiDou Performances]];
*[[Work in Progress:COMPASS Future and Evolutions|COMPASS Future and Evolutions]].
*[[BeiDou Future and Evolutions|BeiDou Future and Evolutions]].


==Notes==
==Notes==
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[[Category:COMPASS]]
[[Category:BEIDOU|!]]

Latest revision as of 14:06, 10 August 2018


BEIDOUBEIDOU
Title BeiDou General Introduction
Edited by GMV
Level Basic
Year of Publication 2011
Logo GMV.png

The BeiDou Navigation Satellite System (BDS), also known as BeiDou-2[1], is China’s second-generation satellite navigation system[1][2] that will be capable of providing positioning, navigation, and timing services to users on a continuous worldwide basis[3].

Although the evolution of its regional navigation system towards a global solution started in 1997, the formal approval by the Government of the development and deployment of BDS System was done in 2006 and it is expected to provide global navigation services by 2020, similarly to the GPS, GLONASS or Galileo systems.[1]

As of December 2011, the BeiDou system was officially announced to provide Initial Operational Service providing initial passive positioning navigation and timing services for the whole Asia-Pacific region with a constellation of 10 satellites (5 GEO satellites and 5 IGSO satellites)[4][2]. During 2012, 5 additional satellites (1 GEO satellites and 4 MEO satellites) were launched increasing to 14 the number of satellites of the constellation. Until 2020, the system is going to launch the remaining satellites and evolve towards global navigation capability.[5][4].


BeiDou Related Articles

BeiDou Logo

The following articles include further information about different important topics related to a BeiDou:

Notes

References

  1. ^ a b c Compass/BeiDou Status, Jun Shen, BNStar Navigation Technology & System, Inc., Rome (Italy), June 11, 2009
  2. ^ a b BeiDou Navigation Satellite System in Wikipedia
  3. ^ [ BeiDou China’s Rapidly Emerging GNSS, InsideGNSS, May/June 2014]
  4. ^ a b Satellite navigation system launched, China Daily Europe, December 2011.
  5. ^ China Satellite Navigation Office, Development of BeiDou Navigation Satellite System, Munich Satellite Navigation Summit, 2011.