China Beidou satellite navigation system (BDS) is a global satellite navigation system developed by China and the third mature satellite navigation system after GPS and GLONASS. Beidou satellite navigation system (BDS), GPS, GLONASS and Galileo are suppliers recognized by the United Nations satellite navigation Committee.
Beidou navigation satellite system (BDS) is a global satellite navigation system developed by China and the third mature satellite navigation system after GPS and GLONASS. Beidou satellite navigation system (BDS) and GPS of the United States, GLONASS of Russia and Galileo of the European Union are suppliers recognized by the United Nations satellite navigation Committee.
北斗卫星导航系统由空间段、地面段和用户段三部分组成，可在全球范围内全天候、全天时为各类用户提供高精度、高可靠定位、导航、授时服务，并具短报文通信能力，已经初步具备区域导航、定位和授时能力，定位精度为分米、厘米级别，测速精度 0.2 米/秒，授时精度 10 纳秒。
Beidou satellite navigation system is composed of three parts: space segment, ground segment and user segment. It can provide high-precision and reliable positioning, navigation and timing services for all kinds of users all over the world, and has the ability of short message communication. It has initially possessed the ability of regional navigation, positioning and time service. The positioning accuracy is decimeter and centimeter level, and the speed measurement accuracy is 0.2 Time of service, 10 nm accuracy.
2020 年 7 月 31 日上午，北斗三号全球卫星导航系统正式开通。
On the morning of July 31, 2020, the beidou-3 global navigation satellite system was officially opened.
Beidou satellite navigation system (hereinafter referred to as Beidou System) is a satellite navigation system independently constructed and operated by China with a view to the needs of national security and economic and social development. It is an important national space infrastructure that provides global users with all-weather, all-weather, high-precision positioning, navigation and timing services.
With the development of Beidou system construction and service capacity, the related products have been widely used in transportation, marine fisheries, hydrological monitoring, weather forecasting, surveying and mapping geographic information, forest fire prevention, communication time system, power dispatching, disaster relief and disaster reduction, emergency search and rescue, etc., and gradually penetrated into all aspects of human social production and people’s life, and injected into the global economic and social development New energy.
Satellite navigation system is a global public resource. Multi system compatibility and interoperability has become a development trend. China China has always adhered one’s own to one belt, one road, the other is the development of the “Beidou and the Beidou”, and actively promoted the international cooperation of the Beidou system. Together with other satellite navigation systems, together with various countries, regions and international organizations, we will jointly promote the development of global satellite navigation, so that the Beidou system can better serve the world and benefit mankind.
To build a world-class satellite navigation system to meet the needs of national security and economic and social development, to provide continuous, stable and reliable services for global users; to develop Beidou industry to serve economic and social development and people’s livelihood improvement; to deepen international cooperation, share the achievements of satellite navigation development, and improve the comprehensive application efficiency of global satellite navigation system.
autonomy. Adhere to the independent construction, development and operation of Beidou system, and have the ability to provide satellite navigation services to global users independently.
to open up. We will provide free and open satellite navigation services and encourage all-round, multi-level and high-level international exchanges and cooperation.
Compatible. It advocates compatibility and interoperability with other satellite navigation systems, encourages international exchanges and cooperation, and strives to provide better services for users.
gradual. To promote the construction of Beidou system step by step, continuously improve the service performance of Beidou system, and continuously promote the comprehensive, coordinated and sustainable development of satellite navigation industry.
Beidou system is composed of space section, ground section and user section.
The space segment consists of several geostationary orbit satellites, tilted geostationary orbit satellites and medium circle earth orbit satellites.
The ground section includes several ground stations, such as master control station, time synchronization / injection station and monitoring station, as well as inter satellite link operation management facilities.
The user segment includes basic products such as Beidou and chips, modules and antennas compatible with other satellite navigation systems, as well as terminal equipment, application systems and application services.