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Global Navigation Satellite System (GNSS)
A satellite system with global coverage is termed a Global Navigation Satellite System (GNSS). Current GNSSs include the Global Positioning System (GPS) developed by the United States, the Global Navigation Satellite System (GLONASS) operated by Russia and the BeiDou Navigation Satellite System (BDS), which was launched by China in June 2020, and the European Unionโs Galileo. The first mentioned has been widely used internationally for years. We now see quite a few differences between the four existing GNSS systems.
GPS was the earliest satellite system project, started by the US Department of Defense in 1973. The first prototype spacecraft was launched in 1978 and the full constellation became operational in 1993. The system offered global services from 1994…
GLONASS is the second navigational system with global coverage. The Soviet Union commenced its GLONASS project in 1976 and launched its first satellite in 1982. GLONASS has gone through three generations (GLONASS, GLONASS-M, GLONASS-K) and the third generation is not yet finished. Russiaโs navigation system achieved full global coverage with 24 satellites in 1995. Restoration of the system was made in 2011 after a decline in capacity.
Similarly, Chinaโs BeiDou experienced three phases of construction with the third phase fully deployed in July 2020…Unlike GPS, which started working after being fully set, BeiDouโs staged strategy made early commercial use of the system accessible. Besides, experience gained in the second phase led scientists to make a better design for BeiDou-3. The third step of BeiDou was launched in 2015 with full global coverage, using a total of 35 satellites.
The last GNSS is Galileo. Though the conception was agreed by the European Union and the European Space Agency in early 2002 and the first experimental satellite GIOVE-A was launched in 2005, it was not until 2011 that the first operational satellites were put into the constellation. Galileo has been offering Early Operational Capacity in 2016 and the complete 30-satellite system is expected by the end of 2020.
https://equalocean.com/analysis/2020082614631
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Received via WhatsApp.
(Posted as received, errors in language not mine)
*What you read is not necessarily untrue but it’s written as propaganda to make all “Chinese peoples” so proud of China: “Love me China!”
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๐จ๐ณ๐ค๐ป๐๐๐ปMore than 140 countries & regions around the world sent congratulations to China:
China Beidou has officially & successfully run it’s own network.
๐ต๐ธ๐ง๐ฒ๐ฎ๐ธ๐ง๐ฟ๐ฐ๐ต๐น๐ฌ๐ช๐ท๐น๐ซ๐จ๐ป๐จ๐ด๐ฌ๐ฌ๐ฐ๐ฟ๐ธ๐ฝ๐ฐ๐ฌ๐ฎ๐จ๐จ๐ฒ๐จ๐ฐ๐ฑ๐ง๐ท๐ช๐ฒ๐ป๐ฒ๐ฐ๐ฒ๐บ๐ฒ๐ณ๐ฒ๐ฒ๐ฒ๐ฝ๐ธ๐ธ๐ณ๐ฌ๐ต๐ผ๐จ๐ญ๐ธ๐ณ๐จ๐ฝ๐ธ๐ฒ๐ธ๐ฎ๐ธ๐ด๐น๐จ๐น๐ฒ๐ช๐บ๐ธ๐ฌ๐ฏ๐ฒ๐ป๐ฌ๐ฏ๐ช๐น๐ฉ๐ฎ๐ด๐ฎ๐น๐ฆ๐ฒ๐ณ๐จ๐ฌ๐ท๐ง๐ณ๐น๐ฐ๐น๐น๐น๐ฏ๐ต๐ฒ๐ธ๐ฟ๐ธ๐น๐จ๐พ๐ธ๐ป๐ต๐ณ๐ณ๐บ๐ณ๐ท๐ฒ๐ฉ๐ฒ๐ฉ๐ฒ๐ธ๐ฒ๐ท๐ธ๐ง๐ฉ๐ฒ๐ฆ๐ฟ๐ณ๐ฎ๐ณ๐ด๐ต๐น๐ธ๐ธ๐จ๐ป๐ธ๐ฉ๐น๐ญ๐น๐ณ๐ฌ๐ช๐ธ๐ณ๐ฎ๐ณ๐ฏ๐ด๐ฌ๐ฎ๐จ๐ฑ๐ณ๐ฎ๐ฎ๐ถ๐ญ๐บ๐ช๐ญ๐บ๐ฆ๐ป๐บ๐น๐ป๐น๐ฟ๐ธ๐ท๐ฑ๐ฐ๐ฐ๐ณ๐ธ๐ฆ๐ท๐ธ๐ฒ๐พ๐ณ๐ซ๐ณ๐ต๐ฆ๐ถ๐ฒ๐จ๐ต๐ช๐ฆ๐ธ๐น๐ฒ๐ท๐ด๐ฑ๐พ๐ฑ๐ธ๐ญ๐ท๐จ๐จ๐จ๐ฟ๐ฐ๐ฎ๐ณ๐ฑ๐ฌ๐บ๐ฌ๐ฑ๐จ๐ฌ๐ซ๐ฏ๐ต๐ซ๐ท๐บ๐ฉ๐ช๐ง๐ซ๐ง๐ฆ๐ง๐ฏ๐ง๐ท๐ต๐ฐ๐ฆ๐บ๐ฆ๐ด๐ช๐ฌ๐ฆ๐ท๐ฆ๐ช๐ช๐น๐ฆ๐ฎ๐ฒ๐ด๐ต๐พ๐ฟ๐ผ๐ฑ๐ท๐ฐ๐ท๐ง๐พ๐ง๐ช๐ง๐ด๐ง๐ฎ๐น๐ฑ๐ช๐จ๐ซ๐ฎ๐จ๐ฉ๐ฌ๐ช๐ฌ๐พ๐ง๐ถ
China no longer uses U.S. Internet & it is no longer controlled by United States. Hence China can save a rental fees of 1000000000000000 yuan each year. The whole world will pay fees to China for the use of Beidou network, which will earn tens of trillion yuans in lease fees. Chinese peoples are proud of it.
Celebrate &
Cheers !!
A giant leap for the Chinese dream came true !
Love me Chinaโฆ
๐จ๐ณ๐ค๐ป๐๐๐ป
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The BeiDou Navigation Satellite System (BDS) (Chinese: ๅๆๅซๆๅฏผ่ช็ณป็ป; pinyin: Bฤidวu Wรจixฤซng Dวohรกng Xรฌtวng [pรจitรฒu wรชiษรญล tร uxวล ษรฎtสฐสฬล]) is a Chinese satellite navigation system. It consists of two separate satellite constellations. The first BeiDou system, officially called the BeiDou Satellite Navigation Experimental System and also known as BeiDou-1, consisted of three satellites which, beginning in 2000, offered limited coverage and navigation services, mainly for users in China and neighboring regions. BeiDou-1 was decommissioned at the end of 2012. On 23 June 2020, the final BeiDou satellite was successfully launched, the launch of the 55th satellite in the Beidou family. The third iteration of the Beidou Navigation Satellite System provides for global coverage for timing and navigation, offering an alternative to Russia’s GLONASS, the European Galileo positioning system, and America’s GPS.
The second generation of the system, officially called the BeiDou Navigation Satellite System (BDS) and also known as COMPASS or BeiDou-2, became operational in China in December 2011 with a partial constellation of 10 satellites in orbit.[4] Since December 2012, it has been offering services to customers in the Asia-Pacific region.[5]
In 2015, China launched the third generation BeiDou system (BeiDou-3) for global coverage. The first BDS-3 satellite was launched on 30 March 2015.[6] On 27 December 2018, BeiDou Navigation Satellite System started providing global services.[7][8] The 35th and the final satellite of BDS-3 was launched into orbit on 23 June 2020.[9] It was said in 2016 that BeiDou-3 will reach millimeter-level accuracy (with post-processing).[10]
According to China Daily, in 2015, fifteen years after the satellite system was launched, it was generating a turnover of $31.5 billion per annum for major companies such as China Aerospace Science and Industry Corporation, AutoNavi Holdings Ltd., and China North Industries Group Corp.[11] The industry has grown an average of over 20% in value annually to reach $64 billion in 2020 according to Xinhua citing data.[12][13]
Domestic industry reports forecast the satellite navigation service market output value, directly generated and driven by the Beidou system, will be worth 1 trillion yuan ($156.22 billion) by 2025, and $467 billion by 2035.[14][15]
https://en.wikipedia.org/wiki/BeiDou
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