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Broadcasting of Highly Accurate Timing & Frequency Reference via Geostationary KOREASAT
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  • Broadcasting of Highly Accurate Timing & Frequency Reference via Geostationary KOREASAT
  • Broadcasting of Highly Accurate Timing & Frequency Reference via Geostationary KOREASAT
저자명
Lee. Kee-Hoon,Yoon. Jae-Cheol,Seo. Jong-Soo
간행물명
Joint Conference on Satellite Communications
권/호정보
2001년|2001권 1호|pp.299-304 (6 pages)
발행정보
통신위성우주산업연구회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

Experimental result of standard time and frequency signal (STFS) dissemination system via GEO-satellite is described in this paper. We propose the differential mode STFS as the most effective calibration technique for mitigating errors in GEO-satellite based STFS dissemination system. We then use trilateration technique associated with extended Kalman filtering (EKF) to further improve the accuracy of differential mode STFS by improving the accuracy of predicted satellite position. It is found to be possible to track Korean domestic satellite KOREASAT within a few hundred meters accuracy in order to provide a reliable, extremely accurate time service through setting up domestic-only baseline. Our simulation results show that a time accuracy is a few ns and a frequency stability is better than 1 part in $10^14 for an averaging time of 7 days all over Korean peninsula.