Beidou navigation satellite system (BDS) is a global satellite navigation system developed by China, and it is the third mature satellite navigation system after GPS and GLONASS.
Beidou satellite navigation system, American GPS, Russian GLONASS and EU Galileo are the suppliers recognized by the United Nations Satellite Navigation Committee.
Beidou satellite navigation system consists of three parts: space segment, ground segment and user segment. It can provide high-precision and high-reliability positioning, navigation and timing services for all kinds of users around the world, and has the ability of short message communication. It has initially possessed the ability of regional navigation, positioning and timing, with the positioning accuracy of decimeters and centimeters, the speed measurement accuracy of 0.2m/s and the timing accuracy of 10n s.
Worldwide, 137 countries have signed cooperation agreements with Beidou satellite navigation system. With the success of global networking, the future international application space of Beidou satellite navigation system will continue to expand. 17 in may 2023 10: 49, China successfully launched the 56th Beidou navigation satellite in xichang satellite launch center with the Long March 3B.
Evaluation of Beidou system;
Beidou satellite navigation system is a self-built and independently operated satellite navigation system around the needs of national security and economic and social development in China. It is an important national space infrastructure, providing all-weather, all-day and high-precision positioning, navigation and timing services for global users.
With the development of Beidou system construction and service capacity, related products have been widely used in transportation, marine fishery, hydrological monitoring, weather forecasting, surveying and mapping geographic information, forest fire prevention, communication timing, power dispatching, emergency rescue and emergency search and rescue. And gradually penetrated into all aspects of human social production and people's lives, injecting new vitality into global economic and social development.
Satellite navigation system is a global public resource, and multi-system compatibility and interoperability have become the development trend. Join hands with other satellite navigation systems to promote the development of global satellite navigation with various countries, regions and international organizations, so that Beidou system can better serve the world and benefit mankind.