Beidou timing principle and application: black technology decryption from atomic clock to microsecond level synchronization
View：394 Release Date：2025/9/5 14:28:29
Time based Space Guardians
The timing core of the Beidou system lies in the "dual clock guards" in space - hydrogen atomic clocks and rubidium atomic clocks. These two high-precision time sources are like tireless timekeepers, with hydrogen atomic clocks having excellent long-term stability and rubidium atomic clocks having outstanding short-term stability, complementing each other's advantages. Even better, the satellite undergoes daily "health checks" from the ground station. The control station analyzes the second pulse error curve of the onboard clock, calculates correction parameters, and injects them back into the satellite time system to ensure that the error is controlled within the minimum range.