Autonomous Operation Technology of Navigation Satellites

A Navigation Satellite System (NSS) consists of several satellites in space. The TT&C and service management of satellites relying solely on ground TT&C and operation control will bear a heavy load of data transmission and processing, and will be limited by the continuous visibility of satellites to ground stations. Excessive reliance on the TT&C and operation management of ground stations will make the safety and serviceability of NSS in wartime a worry. Therefore, improving the autonomous management function and level of navigation constellation and satellites is of great significance to relieve the operation management pressure of ground stations and enhance the stability and safety of the whole system.