The conceptual design of a spacecraft clock that will provide a standard time scale for experimenters in future spacecraft., and can be sychronized to a time scale without the need for additional calibration and validation is described. The time distribution to the users is handled through onboard computers, without human intervention for extended periods. A group parallel binary code, under consideration for onboard use, is discussed. Each group in the code can easily be truncated. The autonomously operated clock not only achieves simpler procedures and shorter lead times for data processing, but also contributes to spacecraft autonomy for onboard navigation and data packetization. The clock can be used to control the sensor in a spacecraft, compare another time signal such as that from the global positioning system, and, if the cost is not a consideration, can be used on the ground in remote sites for timekeeping and control.
Application of satellite time transfer in autonomous spacecraft clocks
01.10.1979
Report
Keine Angabe
Englisch
Ensemble time and frequency stability or GPS satellite clocks
Tema Archiv | 1988
|Performance of new GNSS satellite clocks
TIBKAT | 2013
|Time Synchronization and Performance of BeiDou Satellite Clocks in Orbit
Tema Archiv | 2013
|