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Beidou navigation satellite launch smoothly 5 system
2013-11-1 17:33:59

                 Beidou navigation satellite launch smoothly 5 system

 

On August 1, 2010, at 5 a.m. and beidou navigation system in our country the fifth satellite launch smoothly, this is the third navigation satellite launch this year in China, according to the previous planning, in 2012 China's beidou navigation system will cover the service ability in the asia-pacific region, and in 2020 the global coverage.

Beidou navigation satellite by 5 "long March 3 armour" carrier rocket in xichang satellite launch center in China, this is the first beidou system (IGSO) tilt earth synchronous satellites in orbit, complete beidou system will eventually including 35 satellite, 27 of them for non stationary orbit satellite, 5 geostationary orbit satellite, and 3 of tilt the earth synchronous orbit satellite。

A brief introduction of beidou satellite navigation system

 

1.overview

BeiDou Satellite Navigation System (BeiDou (COMPASS) Navigation Satellite System) is the independent development, independent operation of China is implementing the global Satellite Navigation System. System construction goal is: to build an independent and open compatible, advanced technology, stable and reliable worldwide covered beidou satellite navigation system, promote the satellite navigation industrial chain formation, formed the perfect national satellite navigation application industry support, promote and guarantee system, promote the satellite navigation in the national economic and social industries widely used.

Beidou satellite navigation system by the space segment, ground and users of three parts, including 5 geostationary orbit satellite space segment and 30 non stationary orbit satellite, ground segment including master station and injection station and monitoring station and so on a number of ground stations, user segments including beidou user terminals and other satellite navigation system compatible with the terminal.

(2) development

Satellite navigation system is an important spatial information infrastructure. China attaches great importance to the construction of satellite navigation system, has been trying to explore and develop with independent intellectual property rights of the satellite navigation system. Built in 2000, the first beidou navigation test system, make our country the third in the world after the United States, Russia with independent satellite navigation system. This system has been successfully applied in surveying and mapping, telecommunications, water conservancy, fishery, transportation, forest fire prevention, disaster reduction and relief and public safety, and many other areas, produce remarkable economic benefit and social benefit. Particularly in 2008 Beijing Olympic Games, and played an important role in the wenchuan earthquake relief. To better serve the national construction and development, meet the demand of the global application, launch the beidou satellite navigation system construction in our country.

(3) the construction principle

Bed, wardrobe, sofa, refrigerator, washing machine, air conditioning, water heaterplication and industrial development as the ultimate goal is not only to build system, more with a good system, emphasis on quality, safety, application, benefits, follow the following principles:

1, open. Construction, development and application of the beidou satellite navigation system will be open to the world, the free service for global customers with high quality, with countries around the world to carry out extensive and in-depth exchanges and cooperation, promote the compatibility and interoperability between satellite navigation system, promote the development of satellite navigation technology and industry。

2, autonomy. China will be independent construction and operation of beidou satellite navigation system, beidou satellite navigation system can provide service for global users independence.

3, compatibility. In the international committee of the global satellite navigation system (ICG) and the international telecommunications union (ITU) framework, the beidou satellite navigation system and satellite navigation systems around the world realize the compatibility and interoperability, and that all users can enjoy the fruits of the development of satellite navigation.

4, and progressive. China will actively and steadily promote the construction and development of the beidou satellite navigation system, constantly improve the service quality, and achieve seamless at each stage.

(4) development plan

At present, our country is implementing the construction of beidou satellite navigation system, has successfully launched two beidou navigation satellite. Around the year 2012 according to the overall planning, system construction, the system will be the first to have cover of positioning, navigation and timing in the asia-pacific region as well as the short message communication service ability; Built around the year 2020, global coverage of beidou satellite navigation system

(5) service

Beidou satellite navigation system is committed to the global customers with high quality positioning, navigation and timing services, including open service and authorization service in two ways. Open service is provided free of charge to the global positioning, velocity and timing services, positioning accuracy of 10 meters, velocity accuracy of 0.2 m/s, timing accuracy of 10 nanoseconds. Authorization service is to have high precision, high reliable satellite navigation demand of users, to provide position, velocity, timing and communication services, and system integrity information.

For better service to the world the beidou satellite navigation system, strengthen the beidou satellite navigation system and other satellite navigation system compatibility and interoperability between, promote the comprehensive application of satellite positioning, navigation and timing services, China is willing to cooperate with other countries, the common development of satellite navigation cause.

 

Until 2020, a total of four global satellite navigation system, respectively, GPS navigation system in the United States, Russia's GLONASS system, the eu's GALILEO system and China's beidou system.