A study on technique for synchronization error calibration of frequency & time signal dissemination system via GEO-satellite

摘要

In this paper we analyze the main resources of error in STFS(Standard Time & Frequency Signal) dissemination system using a geostationary satellite. For the purpose of highly accurate STFS dissemination service in Korea, we propose one-way broadcast of STFS via Koreasat. We then propose the differential mode technique as the most effective and efficient calibration technique for mitigating error in STFS dissemination system, and analyze its performance via computer simulation. Our analytical results show that the time accuracy is better than 100 ns and the frequency accuracy is better than 10{sup}(-12) over 7 days all around Korean peninsula. We also investigate some methods for further enhancements to the system and present the estimated results using those methods.