Integrated Doppler Correction to TWSTFT Using Round-Trip Measurement

Yi-Jiun Huang, Wen-Hung Tseng, and Shinn-Yan Lin

Abstract:	Diurnal variation is one of the significant instabilities in Two-Way Satellite Time and Frequency Transfer (TWSTFT) data. It is necessary to correct the diurnal variation for comparing the time-scale difference. We focus on the up-/downlink delay difference caused by satellite motion. In this paper, we propose to correct the TWSTFT data by using round-trip delay measurement. There are four laboratories: the National Institute of Information and Communications (NICT), Korea Research Institute of Standards and Science (KRISS), theNational Time Service Center (NTSC), and TL, who join the TWSTFT network by using the NICT modem. Moreover, TL and NICT are continuing the DPN experiment. In the end, we investigate these TWSTFT data and the corrected data are performed.
Published in:	Proceedings of the 42nd Annual Precise Time and Time Interval Systems and Applications Meeting November 15 - 18, 2010 Hyatt Regency Reston Town Center Reston, Virginia
Pages:	251 - 262
Cite this article:	Huang, Yi-Jiun, Tseng, Wen-Hung, Lin, Shinn-Yan, "Integrated Doppler Correction to TWSTFT Using Round-Trip Measurement," Proceedings of the 42nd Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, November 2010, pp. 251-262.
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