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http://dx.doi.org/10.6109/jkiice.2014.18.6.1317

Comparison of Time Offsets by Tropospheric Zenith Path delay models and Mapping Functions in GPS Time Transfer  

Yu, Dong-Hui (Department of Software, Catholic University of Pusan)
Abstract
This paper shows effects of tropospheric delay models and mapping functions among delay features occurred when GPS code signal is transferred for GPS Time Transfer. GPS time transfer uses CGGTTS as the international standard format. For geodetic GPS receiver, ROB has provided r2cggtts software which generates CGGTTS data from RINEX data and all laboratories participated in TAI link use this software and send the CGGTTS results periodically. Though Saastamoinen zenith path model and Niell mapping function are commonly used in space geodesy, r2cggtts software applied NATO zenith path model and CHAO mapping function to the tropospheric delay model. Hence, this paper shows effects of two tropospheric delay models by implementing Saastamoinen model and Niell mapping function for the time offset.
Keywords
GPS; Time Transfer; Tropospheric delay model; Time offset; Time synchronization;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 P. Defraigne, G. Petit and C. Bruyninx, "Use of Geodetic Receivers for TAI,", 33rd Precise Time and Time Interval (PTTI) meeting, pp.341-348, Nov. 2001.
2 J. Levine, "Time transfer using multi-channel GPS receivers," IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, UFFC-46, pp.392-398, 1999.
3 P.H. Park, The Research on Astronomical Information and Practical Application, Korea Astronomy and Space Science Institute, 2004.
4 A.E. Niell, "Global mapping functions for the atmospheric delay at radio wavelengths," Journal of Geophysical Research, Vol. 101, No. B2, pp. 3227-3246, Feb. 1996.   DOI
5 NATO (North Atlantic Treaty Organization), North Atlantic Treaty Organization, Doc. 4294, pp. A-6-34-A-6-37, 1993.
6 Tropospheric Effects(Physical Influence of GPS Surveying), http://what-when-how.com/gps/tropospheric-effects-physical-influences-of-gps-surveying/
7 Torben Schuler, "On Ground-Based GPS Tropospheric Delay Estimation," Ph. D. dissertation, Universitat der Bundeswehr Munchen, 2001.
8 D.H. Yu, S.H. Yang, J.C. Do and C.B. Lee, " Analysis of Tropospheric Zenith Path Delay of GPS Code Based Precise Time Comparison Technique," Journal of The Korea Society of Computer and Information Vol. 17, No. 9, pp. 61-69, September 2012.   과학기술학회마을   DOI   ScienceOn