Beginning of Precise Time Transfer Experiment Using ETS-VIII Satellite

Yasuhiro Takahashi, Fumimaru Nakagawa, Tadashi. Gotoh, Jun Amagai, Shin'ichi Hama and Hiroyuki Noda

Abstract:	Japanese geostationary satellite, which was launched on December 2006 for R&D of mobile satellite communications [2] and satellite navigation/positioning technology. The on board equipments were developed by the Japan Aerospace Exploration Agency (JAXA) and the National Institute of Information and Communications Technology (NICT). A precise time and frequency management technology is essential to realize a satellite navigation system. NICT, therefore, is conducting the precise time and frequency transfer experiment between the cesium atomic clock on ETS-VIII and the ground reference clock. For this experiment, a special time transfer system, which was proposed by NICT, was developed. We adopt a two-way time transfer method making use of the carrier phase information for the precise timing measurement. We expect to attain a precision of few ps on the measurement of the time difference between on board standards and the ground reference clocks. We are beginning precise time transfer experiment using ETS-VIII.
Published in:	Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007) September 25 - 28, 2007 Fort Worth Convention Center Fort Worth, TX
Pages:	2039 - 2042
Cite this article:	Takahashi, Yasuhiro, Nakagawa, Fumimaru, Gotoh, Tadashi., Amagai, Jun, Hama, Shin'ichi, Noda, Hiroyuki, "Beginning of Precise Time Transfer Experiment Using ETS-VIII Satellite," Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007), Fort Worth, TX, September 2007, pp. 2039-2042.
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