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A model of the Beidou system at the China International Aviation & Aerospace Exhibition held in Zhuhai.
China will launch upgraded satellites and expand its regional Beidou Navigation Satellite System (BDS) — named after the seven-star cluster known in English as the Big Dipper — to global coverage by 2020, a spokesman for the system said on Friday.
"BDS's general performance is expected to be one to two times more effective and its positioning accuracy is expected to be upgraded to the meter or even sub-meter level by 2020," BDS spokesman Ran Chengqi said at a press conference.
BDS began providing positioning, navigation, timing and short message services to civilian users in China and surrounding areas in the Asia-Pacific region in December 2012.
"Performance is better in some regions," he said. Accuracy can reach 7 meters in Chinese cities like Beijing, Zhengzhou, Xian and Urumqi, and five meters in low-latitude regions such as the Association of Southeast Asia Nations (ASEAN).
The office issued an interface control document (ICD) for open service signal B2I in both Chinese and English on Thursday.
"B2I, which updates B1I released last year, means that BDS has entered the era of multifrequency application," Ran said. "It means the system can provide more accurate navigation."
Companies both within and without of China can develop high-precision dual-frequency BDS receivers on this basis, according to the spokesman.
The BDS industry has achieved breakthroughs in key technologies in core chips and modules, upgrading product performance to international standards, Ran said.
The Beidou chips can be installed in vehicles and mobile phones.
The system and products compatible with it have been used in fields such as transportation, marine fishery, hydrologic monitoring, weather forecasting, geodetic surveying, intelligent driving tests, and disaster relief.
More than 50,000 BDS terminals have been installed on fishing vessels so far, Ran said.
Nearly 150,000 passenger vehicles and cargo trucks transporting dangerous materials have also been installed with BDS terminals to help management agencies spot illegal operations.
Ran predicts Beidou will take over about 30% of domestic satellite navigation market, which is currently dominated by GPS, by 2015 and gain a larger share after 2020.
China's State Council, approved a mid and long-term plan for development of the satellite navigation industry in September.
According to the plan, China will boost its satellite navigation industry to more than 400 billion yuan (US$65.9 billion) by 2020.
The world's satellite navigation market is currently dominated by four systems, Russia's GLONASS, the US's GPS, the European Union's Galileo and China's BDS.
BDS has sustained compatibility coordination with GPS, GLONASS and Galileo in the past year to offer better service to the world, he said.
The Beidou system will include 35 satellites and a ground control operation system by 2020 in order to serve global clients.
China launched the first BDS satellite in 2000. Prior to the official launch of the system a year ago, a preliminary version of the system has been used in traffic control, weather forecasting and disaster relief since 2003.
WantChinaTimes
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