BeiDou
Sign in to saveThe BeiDou Navigation Satellite System (BDS; ) is a satellite-based radio navigation system owned and operated by the China National Space Administration. It provides geolocation and time information to a BDS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more BDS satellites. It does not require the user to transmit any data and operates independently of any telephonic or Internet reception, though these technologies can enhance the usefulness of the BDS positioning information.
Key facts
- Navigation satellite system.name
- BeiDou Navigation Satellite System
- Navigation satellite system.image
- Beidou logo.png
- Navigation satellite system.image_size
- 200
- Navigation satellite system.image_caption
- Logo of BeiDou
- Navigation satellite system.country
- China
- Navigation satellite system.type
- Military, commercial
- Navigation satellite system.status
- Operational
- Navigation satellite system.operator
- China National Space Administration
- Navigation satellite system.coverage
- Global
- Navigation satellite system.precision
- 3.6 m (global, public)2.6 m (Asia Pacific, public)10 cm (encrypted)
- Navigation satellite system.satellites_nominal
- 30
- Navigation satellite system.satellites_current
- 35
- Navigation satellite system.first_launch
- 31 October 2000
- Navigation satellite system.last_launch
- 23 June 2020
- Navigation satellite system.launch_total
- 59
- Navigation satellite system.regime
- GEO, IGSO, MEO
- Navigation satellite system.orbit_period
- sd or 12 hours and 53 minutes
- Navigation satellite system.revisit_period
- 7 sidereal days
via Wikipedia infobox
Article
28 sectionsContents
- Nomenclature
- History
- Conception and initial development
- Chinese involvement in Galileo system
- Phase III
- Use outside China
- Use in smartphones
- GPS vs. BeiDou Capabilities
- BeiDou-3
- Predecessors
- BeiDou-1
- Completion
- Position calculation
- Terminals
- Applications
- Decommissioning
- BeiDou-2
- Accuracy
- Frequencies
- Compass-M1
- Operation
- Completion
- Constellations
- Concerns and prohibitions
- See also
- Other systems
- References
- External links
The BeiDou Navigation Satellite System (BDS; ) is a satellite-based radio navigation system owned and operated by the China National Space Administration. It provides geolocation and time information to a BDS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more BDS satellites. It does not require the user to transmit any data and operates independently of any telephonic or Internet reception, though these technologies can enhance the usefulness of the BDS positioning information.
The current service, BeiDou-3 (third-generation BeiDou), provides full global coverage for timing and navigation, along with Russia's GLONASS, the European Galileo, and the US's GPS. It comprises satellites in three types of orbits: 24 in medium Earth orbit (global coverage), 3 in inclined geosynchronous orbit (Asia–Pacific coverage), and 3 in geostationary orbit (China coverage). The BeiDou-3 system was fully operational in July 2020. In 2016, BeiDou-3 reached millimeter-level accuracy with post-processing from a nationwide reference station network.