CGTN | 04-Aug-2020
Products linked to the BeiDou Navigation Satellite System (BDS) have been exported to over 120 countries and regions, according to an official.
All key parts of the system are 100 percent domestically built, and China has mastered 160 core technologies including inter-satellite links and high-precision atomic clocks, said BDS spokesperson Ran Chengqi at a press conference. The 28-nanometer Beidou multi-mode chip has gone into mass production and its 22 nm chip will be mass-produced soon, Ran told reporters. Most smartphones support BeiDou’s functions, he added. Launched in 2009, the BDS-3 constellation was completed half a year ahead of schedule, said the official, adding that performance of satellite network can achieve world first class.
“The BDS-3 has a global positioning accuracy better than 10 meters, velocity resolution better than 0.2m/s, skywave timing accuracy better than 20 nanoseconds, and service availability better than 99 percent, especially outstanding in the Asia-Pacific region,” Ran told the press. The short message service is one of the BDS’ features. This function can send 14,000 bits (1,000 Chinese characters) per time in area communication and 560 bits (40 Chinese characters) in global communication per time.
This function is not limited to sending characters, it can also transfer video messages and pictures. “The detection probability of global search and rescue service is better than 99 percent,” Ran said. With completion of the constellation, the BDS is now one of the four global navigation satellite systems along with GPS of the U.S., GLONASS of Russia and Galileo of Europe.
“We are continued to deepen the cooperation on compatibility and interoperability with systems of the U.S., Russia and the EU,” Ran said. “The BDS has entered a number of international organizations related to civil aviation, maritime affairs, search-and-rescue, and mobile communications. Many international standards supporting the BDS have been released.” (Cover image via People’s Daily)
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