Simulation and Ground Experiments of Remote Synchronization System for Onboard Crystal Oscillator of Quasi-Zenith Satellite

Toshiaki Iwata, Fabrizio Tappero, Naoto Takasaki, Akira Iwasaki, Michito Imae, Tomonari Suzuyama, Hiroshi Murakami, Yoshikatsu Kawasaki, and Andrew Dempster

Abstract: The quasi-zenith satellite (QZS) system (QZSS) is a Japanese project that was started in 2003 with the aim of positioning services. A simulation and experiment on a new timekeeping method for the QZSS was conducted on the ground. The remote synchronization system for the onboard crystal oscillator (RESSOX) of the QZS functions by maintaining an uplink to receive time information from a ground station (GS) equipped with accurate atomic clocks. The required apparatuses for the RESSOX are described. Some simulation and experimental results obtained on the ground, which indicate the feasibility of synchronization to within 10 ns between the GS and the QZS, are demonstrated and compared.
Published in: NAVIGATION, Journal of the Institute of Navigation, Volume 53, Number 4
Pages: 231 - 235
Cite this article: Iwata, Toshiaki, Tappero, Fabrizio, Takasaki, Naoto, Iwasaki, Akira, Imae, Michito, Suzuyama, Tomonari, Murakami, Hiroshi, Kawasaki, Yoshikatsu, Dempster, Andrew, "Simulation and Ground Experiments of Remote Synchronization System for Onboard Crystal Oscillator of Quasi-Zenith Satellite", NAVIGATION, Journal of The Institute of Navigation, Vol. 53, No. 4, Winter 2006-2007, pp. 231-235.
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