Military Review

China completed deployment of Beidou global navigation system

25
China completed deployment of Beidou global navigation system

China has completed the deployment of the Beidou navigation system, launching the last third-generation satellite into orbit on June 23, thereby bringing the number of Beidou-3s in the orbital constellation to 35. SpaceNews reports.


Reportedly, the last Beidu-3 satellite was launched on June 23 at 04:43 Moscow time. vr. from the Xichang cosmodrome (Sichuan province) using the Long March 3B launch vehicle. The rocket launched the satellite into geo-transition orbit. The spacecraft after separation successfully opened the solar panel.

Recall that the deployment of Beidou satellite navigation system began in 2000. Initially, satellites of the first generation were launched into orbit, then the second, and the third. At first, the Beidou system was regional and signalized the Asia-Pacific region, but with the introduction of the third generation, it became global. The third generation consists of 35 satellites in geostationary, geosynchronous, inclined and middle Earth orbits. An open signal provides positioning accuracy of about two meters, and an encrypted signal for the military, presumably, increases accuracy to about ten centimeters.


The preliminary deployment of the Beidou navigation system was reported in 2018 after China launched 19 satellites into orbit according to the 18 + 1 plan. That is, 18 satellites were launched into the middle orbit and one into the geostationary one.
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  1. Mitroha
    Mitroha 24 June 2020 16: 03 New
    +6
    What does the combination of own production and unlimited finance mean?
    1. voyaka uh
      voyaka uh 24 June 2020 16: 30 New
      15
      China has the most advanced information and space technology.
      And many, out of habit, still consider China a country of copying and poor quality.
      1. Mitroha
        Mitroha 24 June 2020 17: 05 New
        +4
        Well, there are reasons for this, although everything changes quite quickly.
        1. Ros 56
          Ros 56 24 June 2020 18: 41 New
          -8
          Type plasticine drills and other tools. Chinese means junk, unlike their own electronics.
          1. Mitroha
            Mitroha 24 June 2020 19: 04 New
            0
            And their electronics happens to be OH of what different quality. I slightly weakened the quality control department and the marriage started. Believe me, I have to work
      2. businessv
        businessv 24 June 2020 18: 17 New
        -1
        Quote: voyaka uh
        And many, out of habit, still consider China a country of copying and poor quality.
        There are already very few of them - if minke whales are preoccupied with the dominance of Chinese electronics, then this says a lot!
    2. Rzzz
      Rzzz 24 June 2020 22: 36 New
      +2
      Quote: Mitroha
      What does the combination of own production and unlimited finance mean?

      ... and indicative executions of officials for corruption and embezzlement.
    3. halpat
      halpat 24 June 2020 23: 23 New
      -1
      In Russia, even the name of this system has long been known.
      “Why are you dragging this Baidu?”
  2. knn54
    knn54 24 June 2020 16: 19 New
    +1
    The Chinese army is no longer dependent on GPS in the event of a military conflict with the Yankees.
    1. Rzzz
      Rzzz 24 June 2020 22: 40 New
      -1
      In the event of a conflict, any satellite navigation is jammed not easily, but very easily. Here, even in the presence of its own system, along with the advantages, there is a minus - the enemy can drown out the alien system, leaving his own.
  3. yfast
    yfast 24 June 2020 16: 36 New
    -5
    Quote: voyaka uh
    China has the most advanced information and space technology.

    Which they slammed. 10cm accuracy for the Chinese - I do not believe it.
    1. AllBiBek
      AllBiBek 24 June 2020 16: 55 New
      13
      Sorry, but who did they slam the technology of 5 and 6G from?
      1. ZAV69
        ZAV69 24 June 2020 23: 48 New
        0
        Quote: AllBiBek
        Sorry, but who did they slam the technology of 5 and 6G from?

        Dear, do you have a time machine? 6G is not even a concept at all, so ... some predictions.
    2. Rzzz
      Rzzz 24 June 2020 17: 33 New
      +2
      No system will have 10 centimeters, purely even in theory. Yes, they do not need anyone, these 10 cm.
      But with diff corrections, and the carrier phase fixation mode - completely, and even more precisely.
      1. Professor
        Professor 24 June 2020 20: 52 New
        +2
        Quote: rzzz
        No system will have 10 centimeters, purely even in theory. Yes, they do not need anyone, these 10 cm.
        But with diff corrections, and the carrier phase fixation mode - completely, and even more precisely.

        The nameless author said 10 cm, which means 10 and the laws of physics are not interesting to him.
  4. askort154
    askort154 24 June 2020 16: 56 New
    +7
    The preliminary deployment of the Beidou navigation system was announced in 2018, after China launched 19 satellites into orbit under the "18 + 1" plan.


    For 2018, it was planned between Russia and China to jointly use differential correction stations for our Glonass and Chinese Beidou. And locate them in: Belarus, Kazakhstan, Armenia, China, India, Vietnam,
    Cuba, Spain, Argentina, Indonesia, Ecuador, Venezuela, Mexico, Sweden,.
    For 2017 there were only 8 such stations of our "Glonass" in the far abroad:
    - 4 - in Brazil,
    - 3 - in Antarctica,
    -1 - in South Africa.
    At the same time, the American "GPS" had 22 stations on the territory of Russia (in the 90s). And when in the "2000s * we asked to locate our stations on their territory, they categorically refused. In response, we reduced their stations on our territories up to 9. Not completely removed, since their GPS is still used in our "everyday life".
    And the number of ground stations - specifically affects the accuracy of determining a point on the ground. So the number of satellites in orbit is "stability", and differential correction stations is accuracy.
    1. iouris
      iouris 24 June 2020 17: 12 New
      -4
      Quote: askort154
      and differential correction stations are accuracy.

      This is an error.
      1. askort154
        askort154 24 June 2020 17: 18 New
        +1
        iouris ...This is an error.

        Accuracy - reduction of error, or vice versa.
        A glass of vodka, or vodka in a glass. hi
      2. Piramidon
        Piramidon 24 June 2020 18: 26 New
        +1
        Quote: iouris
        Quote: askort154
        and differential correction stations are accuracy.

        This is an error.

        What's the difference?
  5. yfast
    yfast 24 June 2020 17: 04 New
    0
    Quote: AllBiBek
    Sorry, but who did they slam the technology of 5 and 6G from?

    But what, did they slam them? Well then, the same one who has the J-20.
  6. Lebed
    Lebed 24 June 2020 17: 11 New
    +1
    Well, well done. Congratulations Their perseverance is worthy of respect.
    1. Reader 2013
      Reader 2013 24 June 2020 20: 43 New
      -3
      Yes, it's time to bomb them already, together with the USA
  7. Poetry
    Poetry 25 June 2020 00: 24 New
    -1
    The Chinese, they are to some extent fanatics,
    We have more Spirit, more mathematics in them.
    What can I say? China is now a steep country,
    Everywhere you look, the brand is "made in China".
  8. slipped
    slipped 25 June 2020 00: 59 New
    -1
    The Long March 3B rocket stage fell very close to a dam on a reservoir in Yucing County, Guizhou Province

  9. Old26
    Old26 26 June 2020 17: 18 New
    +1
    Quote: Ros 56
    Type plasticine drills and other tools. Chinese means junk, unlike their own electronics.

    Do not tell. With an interval of 10 years, I had two Chinese knives. The first - with a knife, fork, spoon, could spontaneously close, and the knife bent. The second - presented to me in the early 20-00s - is not folding. It so happened that he used it for an hour as a chisel. At least one barb on the blade ...