What is the accuracy of Beidou navigation?

The positioning accuracy of Beidou satellite navigation system is 10 meter.

Service type:

1, basic navigation service

To provide services for users all over the world, the spatial signal accuracy will be better than 0.5 meters; Global positioning accuracy will be better than10m, speed measurement accuracy will be better than 0.2m per second, and timing accuracy will be better than 20ns; In the Asia-Pacific region, the positioning accuracy will be better than 5m, the speed measurement accuracy will be better than 0. 1m/s, and the timing accuracy will be better than 10ns, thus greatly improving the overall performance.

2. Short message communication service

For the short message communication service in China and its surrounding areas, the service capacity is increased by 10 times, and the transmission power of the user machine is reduced to the original 110, and the single communication capacity is10,000 Chinese characters (14,000 bits); Global short message communication service, with a single communication capacity of 40 Chinese characters (560 bits).

3. Satellite-based enhanced services

According to ICAO standards, it serves users in China and surrounding areas, and supports two enhanced service modes: single frequency and dual frequency multi-constellation, so as to meet the relevant performance requirements of ICAO.

4. International search and rescue services

According to the standards of the International Maritime Organization and the International Search and Rescue Satellite System, it serves the global users. Together with other satellite navigation systems, it constitutes a global mid-orbit search and rescue system and provides a return link, which greatly improves the efficiency and ability of search and rescue.

Extended data:

Coverage:

2011/from February 27th, Beidou navigation system is a regional navigation system covering China, covering about 70 ~ 140 east longitude and 5 ~ 55 north latitude. Beidou satellite system achieves full coverage in Southeast Asia.

2065438+0818 On February 27th, Ran Chengqi, director of China Satellite Navigation System Management Office and spokesman of Beidou Satellite Navigation System, announced the completion of the basic system of Beidou-3 and began to provide global services. This indicates that the service scope of Beidou system has expanded from the region to the whole world, and Beidou system has officially entered the global era.

Baidu Encyclopedia-Beidou Satellite Navigation System

Baidu Encyclopedia-Beidou Navigation and Positioning Satellite System