The global satellite navigation system Beidou China competition "unique skills"
chinatopwin
chinatopwin
2017-11-10 09:34:31
China's new generation Beidou satellite - Beidou three global networking satellite launched in
Xichang in November 5th, which means that Beidou three satellite navigation system is fully
started, China Beidou into the global networking era
Beidou satellite navigation system is China focus on national security and economic and social
Beidou satellite navigation system is China focus on national security and economic and social
development needs, independent construction, independent operation of the satellite
navigation system, is to provide all-weather, all day long for global users, high precision
positioning, the state space based navigation and timing service facilities.
So, what is the development of satellite navigation system in China? What are the advantages
As the Beidou navigation and frequency design of international coordination chief expert,
So, what is the development of satellite navigation system in China? What are the advantages
of China Beidou, which is striding towards the world, and what kind of challenges are faced
with?
Hard negotiations to win valuable channel resources
On the construction of Chinese satellite navigation system began in the last century in 70s,
Hard negotiations to win valuable channel resources
On the construction of Chinese satellite navigation system began in the last century in 70s,
"two bombs and one satellite" ancestors once explored "beacon 1". Ultimately because of the
economic and technical aspects difficult to support, the project was forced to dismount.
In the Gulf War, the combat effectiveness of loading GPS precision strike weapons shocked the
In the Gulf War, the combat effectiveness of loading GPS precision strike weapons shocked the
world. Facing the serious national security threats and challenges, in 1994, China made a
major strategic development, the development of an independent satellite navigation system,
named "Beidou".
Yes, the American GPS, the Russian GLONASS launched more than 20 satellites, has
completed a global network.
It is the most suitable golden frequency resource for satellite navigation, which has been
It is the most suitable golden frequency resource for satellite navigation, which has been
completely separated by the United States and Russia, and the compass is facing the situation
of no frequency available.
As the Beidou navigation and frequency design of international coordination chief expert,
academician of Chinese Academy of Engineering Tan Shusen said that the Beidou through
active mediation, tough negotiations, creatively put forward the satellite navigation signal
compatibility evaluation criteria, and other proof of Beidou satellite navigation system frequency
overlap without mutual influence, won the "world consensus" frequency sharing, for frequency
resources valuable for the country.
In the joint efforts of China and the European Union, ITU from the air navigation band maximum
In the joint efforts of China and the European Union, ITU from the air navigation band maximum
extrusion short frequency, using common satellite navigation. This is a short frequency, only
gold frequency of 1/4, is to build a global navigation system of the basic frequency of demand,
and countries can apply equally.
In April 17, 2000, China Beidou and European Union Galileo system successfully declared.
In April 17, 2000, China Beidou and European Union Galileo system successfully declared.
According to ITU rules, the navigation satellite must be successfully launched within 7 years
At 4:11 on April 14, 2007, the first star of Beidou two launched from the Xichang satellite launch
At 4:11 on April 14, 2007, the first star of Beidou two launched from the Xichang satellite launch
center, successfully entered the scheduled orbit, 20 days after 16 days of.2, Beijing clearly
received signals from this satellite.
At this moment, the deadline for application of the frequency stipulated by ITU is less than 4
At this moment, the deadline for application of the frequency stipulated by ITU is less than 4
hours.