The next -generation satellite positioning system is composed of 70 to 90 satellites in 2014

　　The new generation of American satellite positioning system Block III is already in the assembly debugging stage and is planned to be launched in 2014. It has more powerful, more reliable and more functions than the current GPS system.

　　Located in Lockeshid Martin, south of the central U.S. city, workers are stepping up more than 30 Block III satellites. These satellites will replace the GPS satellite currently running on the track in 2014, providing strong military and civilian dual -use services, and the civil satellite positioning system of other countries can also share its services. According to reports, the system will consist of 70 to 90 satellites, and the GPS system that provides existing navigation positioning services has only 30 satellites. Therefore, the Block III will greatly improve the function of positioning services, raising the positioning accuracy from the current 10 feet to less than 3 feet, and can provide indoor positioning services.

　　In addition, Block III will add the transmission of two groups of civilian signals, one of which is to provide more accurate positioning services to some activities that require high -precision positioning signals, such as exploration. In terms of military signal transmission, the military sector can not only receive existing military satellites and international satellite signals through decoding technology, but also can share civil signal transmission services, which greatly enhances its ability to transmit and position the signal transmission and positioning between urban skyscrapers and dense jungles. Essence

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