The Beidou-3 system will also launch six medium-earth orbit satellites, three inclined geosynchronous orbit satellites and two geostationary orbit satellites, further enhancing the global basic navigation and regional short message communication service capabilities, and realizing global short message communication, satellite-based enhancement, international search and rescue, accurate single point positioning and other service capabilities.
Beidou system will provide services for users all over the world, and the spatial signal accuracy is 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.
Extended data:
Security of system operation
1. Improve the responsibility system for stable operation. We will improve the multi-party linkage normalization mechanism for the space segment, the ground segment and the user segment of Beidou system, improve the independent health management and fault handling capabilities of satellites, continuously improve the operation and management support capabilities of large-scale constellation systems, and promote the stable operation of the system to move towards intelligence.
2. Realize the smooth connection of system services. Beidou-3 system is forward compatible with Beidou-2 system, which can provide users with continuous, stable and reliable services.
3. Innovative risk prevention and control management measures. The strategy of satellite on-orbit and ground backup is adopted to avoid and reduce the impact of sudden satellite on-orbit failure on system service performance; The ground facilities are designed redundantly to eliminate weak links and improve system reliability.