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北斗卫星导航系统(简称“北斗”)是中国自主研发、独立运行的全球卫星定位与通信系统,与美国的GPS、俄罗斯的格洛纳斯、欧盟的伽利略系统兼容共用的全球卫星导航系统,并称全球四大卫星导航系统。该系统可在全球范围内全天候、全天时为各类用户提供高精度、高可靠的定位、导航、授时服务并兼具短报文通信能力。北斗卫星导航系统2011年12月27日起,开始向中国及周边国家提供连续导航定位与授时服务,主要应用于军事领域,包括飞机、导弹、水面舰艇和潜艇的定位导航;弹道导弹机动发射车,自行火炮与多管火箭发射车等武器载具发射位置的快速定位等方面。北斗在国防上的应用,能使作战效能提高100-1000倍,作战费效比提高10-50倍,大大提高国防能力和减少国防经济的负担。2012年12月27日起,北斗卫星系统正式向亚太大部分地区提供连续无源定位、导航、授时等服务;标志着北斗卫星系统由军用转向民用,主要领域包括交通运
Beidou satellite navigation system (referred to as “Beidou ”) is China’s independent research and development, independent operation of the global satellite positioning and communication systems, and the United States GPS, Russia’s GLONASS, the EU’s Galileo system compatible with the global satellite navigation system , Said the world’s four satellite navigation systems. The system can provide all kinds of users with high-precision, highly reliable positioning, navigation and timing services and short message communication capabilities all over the world and around the world. Beidou satellite navigation system on December 27, 2011, began to China and neighboring countries to provide continuous navigation and timing services, mainly used in the military field, including aircraft, missiles, surface ships and submarines positioning and navigation; ballistic missile mobile launch vehicles , Self-propelled artillery and multi-launch rocket launchers and other weapons and vehicles launch location of rapid positioning and so on. The application of Beidou in national defense can increase the operational efficiency by 100-1000 times and the combat cost-effectiveness ratio by 10-50 times, greatly improving the national defense capability and reducing the burden on the national defense economy. Beginning on December 27, 2012, Beidou Satellite System officially provides continuous passive location, navigation and timing services to most parts of Asia Pacific. It marks the shift of the Beidou satellite system from military to civilian use. Its major areas include transportation