At 19:45 on November 5, in our Xichang Satellite Launch Center, the Beidou 3 first double star successfully launched under the escrow of the Long March III B / Expedition Launch Vehicle 1. The rocket upper class successfully separated from the satellite, Into the scheduled orbit.The launch of the satellite is China's Beidou No. 1, two networked satellites, Beidou satellite navigation system opened a new era of global networking, BeiDou satellite navigation system 'three-step' development strategy into ' last step' .
The Beidou 3 first binocular by the China Aerospace Science and Technology Corporation five homes scratched the total research and development, belonging to the Central Earth Orbit satellite, Compass satellite navigation system is the first 24, 25 satellites. Compass global satellite navigation system configured with a new generation of atomic clock , Positioning accuracy of up to 2.5 meters to 5 meters, satellite design life to 10 years to 12 years, and for the first time put forward 'guarantee service uninterrupted' indicators.
Compared with the regional satellite navigation system, a major feature of BeiDou global satellite navigation system is the first configuration of the phased-array inter-satellite link to solve the problem of overseas monitoring satellites. Beidou No. 3 is still the world's first satellite Rail autonomous integrity monitoring function, this feature for civil aviation, automatic driving and other users in the field of life safety, has a very strong practical value of its new navigation signal system and a strong in-orbit reconstruction function, will greatly enhance user experience.
Beidou, as the only navigation system in the world composed of three types of orbiting satellites, will provide more functions such as search and rescue, global location reporting and satellite base enhancements in addition to its basic functions of navigation, positioning and timing.
At present, BeiDou satellite navigation system has been applied in a large scale in various fields such as agriculture, marine fishery, civil aviation, transportation, emergency rescue, disaster prevention and mitigation, and gas, and has gradually entered the public life.
In the future, China Beidou will continue to promote its application at home and abroad, deepen the continuous integration of high-precision satellite navigation services and cloud computing, Internet of Things and big data, accelerate the integration of satellite navigation and high-end manufacturing and software industries, and promote the mode of production And the transformation of the development mode to serve the development of the national economy and social informatization. With the initiative of China's 'One Belt and One Road' initiative, Beidou No. 3 will step up its pace of 'going global.' It will take the lead in providing basic along the Belt and Road and neighboring countries in 2018. Service to serve global users by 2020.
The Long March III B / Expedition 1 carrier rocket by the China Aerospace Science and Technology Corporation of a hospital scratched the total research and development, is composed of the basic level and the upper level of the four rocket .In July 2015, the four rocket had a double star Way success of the 18th, 19 Beidou navigation satellite into orbit .This is the Long March III / Expedition 1 rocket launch 2 Beidou launch rocket to take a number of technical improvements and reliability growth measures, For the first time, a three-mode receiver compatible with the BeiDou satellite navigation system is used to improve the orbital accuracy of the rocket flight, which is also the 253rd flight of the Long March series launch vehicle.
Beidou satellite navigation system 'three steps' development strategy
In 1983, China's Beidou satellite navigation plan was officially put forward. In 2000 to take 'the first step' to build Beidou satellite navigation test system.
The 2006 China Aerospace White Paper officially announced the forthcoming deployment of the second generation BeiDou satellite navigation system and the launch of the first Beidou II satellite in 2007. China began formally networking the second generation BeiDou satellite navigation system, 'In its development strategy, China has built a Beidou-2 satellite navigation system operated by a network of 14 network satellites and 32 ground stations.
The goal of the 'third step' is to build a Beidou global satellite navigation system consisting of about 30 satellites by 2020, namely Beidou.