China news agency: the Beidou starting “a stone’s throw Double Star” navigation to accelerate network

China news agency reporter Sun Law

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China twelfth, three 10 Beidou navigation system network satellite from the Xichang Satellite Launch Center in the early morning of the 30th by the “Long March 3-B carrier rocket” to kill, Twin Stars “approach successfully launched. China is implementing the self-development, run independently of the global satellite navigation system – the Beidou satellite navigation system for the first time “to kill Double Star to launch navigation satellites, China’s first” kill Double Star “to launch two Earth high-orbit satellites.

the Beidou satellite navigation system project chief architect of bombs and one satellite “founding father Sun Jiadong academicians said that the system works the next step of construction and development of China’s Beidou satellite navigation as soon as possible to achieve global coverage, will be” very, very important basis “master” to kill binary stars and even multi-satellite launch technology and the ability to complete the construction of the Beidou satellite navigation system project to accelerate the process of Beidou navigation satellite networking.

“a stone’s throw Double Star” to improve network efficiency

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Chinese satellite navigation system management office Guo, the researcher said, 2012 is the final year of the Beidou satellite navigation system area network construction in accordance with the network schedule to be completed before the end of the 16 satellite launch of the regional network required, “a stone’s throw double star” approach will enable the network efficiency is greatly improved.

a stone’s throw double star “This launch for the Beidou system network efficiency, reduce overall network funding very large. The launch is the first Beidou system “to kill Double Star network launch, is also China’s first time launched the networking of high-orbiting satellites.” To kill Double Star. This satellite was successfully launched two networking will further improve the performance of the regional coverage of the Beidou system, including the accuracy and stability. At the same time, we will further validate the implementation of the “kill Twin Star” launch the technical feasibility of China’s 20,000 km high orbit satellites.

Guo person, this year, China will also launch three Beidou navigation network satellite, completion of the Asia-Pacific regional network of three satellites, two still plan to launch a “stone’s throw Double Star”. In the future, China will use more “to kill Double Star” launch implementation in a circular orbit (MEO) satellite constellation network.

“length of triethylene” rocket 6

“Long March III A series of” Long March 3-B rocket is the current carrying capacity of the largest launch vehicle, launch a high-orbit satellites of the main rocket. The “Long March III A carrier rocket series the chief architect of China Academy of Launch Vehicle Technology Jie Jiang said, to meet this” kill double star “to launch the mission requirements, the” Long March 3-B rocket in its standard on the basis of greater improvement, the use of outside support binary star series, Double Star, the launch trajectory design techniques, new technology on the binary orbital separation technology, in a circular orbit launch technology 6. At the same time, the rocket on the whole there are 26 adaptive state of change, the fairing design, rocket overall design of the binary star separation system design, the launch trajectory design.

six new technologies and there are 26 state changes, the development process through design, prototype design, sample design in three stages, the entire development process for 26 large ground tests, including full arrows the wind tunnel test, vibration test, modal test, simulation testing, all newly developed structure of the Ministry of paragraph static test, the noise tests. She said, “The launch of ‘a stone’ Double Star ‘related to status changes, including new technologies, new state changes, go through these trials to validate these ground tests to be done”.

Jie Jiang said that the improved Long March III B carrier rocket implementation of the “kill double star” launch a rocket can be done two satellite launch, both to improve the emission efficiency, but also improve the ability to launch on the Chinese space launch vehicle technology development is also important.

launch site initiatives to ensure the Beidou Double Star and the successful launch

Communist China Xichang Satellite Launch Centre party secretary Sun defend that, this time with the “Long March 3 B carrier rocket to launch two Beidou navigation satellite, is the Xichang Satellite Launch Center in the strict sense the first time” to kill the Double Star mission, and originally had fired one small way equipped with a small satellite “to kill Double Star” is very different, the weight of the two satellites, performance is exactly the same, and they both orbit and the separation time of the rocket. high requirements of firing accuracy.

to reach to ensure the accuracy of the successful launch of the launch of Beidou Double Star requirements, the Xichang Satellite Launch Center in the program development, team drills and testing of aerospace products, take a series of strict measures, including the launch time window selection, propellant dose to determine all the parameters of the tested staff to conduct training and rigorous testing of aerospace products, “is to the launch site of the five systems all work done, did not miss any doubt, without the hidden God”.

Sun defend the Xichang Satellite Launch Center, this year there are two Beidou navigation satellite launch to launch three Beidou satellites. The launch site system and aerospace product development department to develop programs, training team, so that all facilities and equipment the precise place, in order to ensure the complete success of the follow-up every time satellite launch. (End)