Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Multi-channel Two-Way Time Transfer Using a Communication Satellite

통신위성 이용 멀티채널 양방향 시각비교 연구

  • 양성훈 (한국표준과학연구원, 기반표준본부) ;
  • 이창북 (한국표준과학연구원, 기반표준본부) ;
  • 이종구 (한국표준과학연구원, 기반표준본부) ;
  • 이영규 (한국표준과학연구원, 기반표준본부) ;
  • 이상정 (충남대학교 전기정보통신공학부)
  • Published : 2009.03.01
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Abstract

UTC (Coordinated Universal Time) has been made by the comparison results and the statistical analysis of primary clocks maintained by national standard institutes. Some kinds of technique have been used for international time transfer; since 1980s the study on methods and development of time transfer has conducted with activation of GPS application. And the more accurate and easier method made it use the official time transfer method for the generation of UTC. But recently TWSTFT (Two-Way Satellite Time and Frequency Transfers) as well as GPS time transfer are increasing in number because the TWSTFT is able to improve the accuracy and precision of time comparison owing to the elimination of the ionospheric and tropospheric delay errors thanks to the reciprocal propagation path. In this paper, we introduce the TWSTFT results by a multi-channel modem comparing with GPS P3-code.

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References

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