In today's world, the GPS, Beidou, GLONASS, and Galileo four satellite navigation systems are contenders. If all of them are completed, there will be more than one hundred global navigation satellites. The Beidou system has always practiced the concept of "China's Beidou and the world's Beidou" and it is necessary to be compatible with and develop with other satellite navigation systems for the benefit of the global "family."
Recently, Yang Changfeng, a member of the National Committee of the Chinese People's Political Consultative Conference and chief designer of the Beidou satellite navigation system, said in an interview with the media that six Beidou No. 3 vehicles were successively launched to verify the basic framework of the global networking of the Beidou satellite navigation system. The six satellites include the 28th and 29th Beidou navigation satellites launched on February 12. This is just the prelude to the Big Dipper drama in 2018.