IGS/BIPM Pilot Project to Study
Accurate Time and Frequency Comparisons
Using GPS Phase and Code Measurements

List of Related Publications

1990 - 1995

Schildknecht, Th., G. Beutler, W. Gurtner, and M. Rothacher, Towards sub-nanosecond GPS time transfer using geodetic processing technique, Proc. 4th European Frequency and Time Forum, 335-346, 1990.
Dunn, C., S. Lichten, D. Jefferson, and J. S. Border, Sub-nanosecond clock synchronization and precision deep space tracking, Proc. 23th Precise Time and Time Interval Meeting, NASA Conference Publ. 3159, 89-101, 1991.
Baeriswyl, P., Th. Schildknecht, W. Gurtner, and G. Beutler, Frequency and time transfer with geodetic GPS receivers, Proc. 7th European Frequency and Time Forum, 119-124, 1993.
Dunn, C.E., D.C. Jefferson, S.M. Lichten, J.B. Thomas, Y. Vigue, and L.E. Young, Time and position accuracy using codeless GPS, Proc. 25th Precise Time and Time Interval Meeting, NASA Conference Publ. 3267, 169-182, 1993.
Douglas, R.J., and J. Popelar, PTTI applications at the limits of GPS, Proc. 26th Precise Time and Time Interval Meeting, Reston, VA, 141-152, 1994.
Baeriswyl, P., Th. Schildknecht, J. Utzinger, and G. Beutler, Frequency and time transfer with geodetic GPS receivers: First results, Proc. 9th European Frequency and Time Forum, 46-51, 1995.
1996
Baeriswyl, P., Th. Schildknecht, T. Springer, and G. Beutler, Time transfer with geodetic GPS receivers: Using code and phase observation, Proc. 10th European Frequency and Time Forum, 430-435, 1996.
Jefferson, D.C., S.M. Lichten, and L.E. Young, A test of precision GPS clock synchronization, Proc. 1996 IEEE International Frequency Control Symposium, 1206-1210, 1996. [198.5 kB]
Petit, G., P. Moussay, and C. Thomas, GPS time transfer using carrier phase and P-code measurements, Proc. 10th European Frequency and Time Forum, 279-285, 1996.
Petit, G., and C. Thomas, GPS frequency transfer using carrier phase measurements, Proc. 1996 IEEE International Frequency Control Symposium, 1151-1158, 1996.
Young, L.E., D.C. Jefferson, S.M. Lichten, R.L. Tjoelker, and L. Maleki, Formation of a GPS-linked global ensemble of Hydrogen masers, and comparison to JPL's linear ion trap, Proc. 1996 IEEE International Frequency Control Symposium, 1159-1162, 1996. [125.2 kB]
1997
Baeriswyl, P., Time and frequency transfer using GPS code and phase observables, Bericht Nr. 27, Druckerei der Universität Bern, 1997.
Larson, K.M., S. Philipsen, and J. Levine, Time transfer using GPS carrier phase methods, Proc. 29th Precise Time and Time Interval Meeting, 221-228, 1997. [310.6 kB]
Overney, F., Th. Schildknecht, G. Beutler, L. Prost, and U. Feller, GPS time transfer using geodetic receivers: Middle-term stability and temperature dependence of the signal delays, Proc. 11th European Frequency and Time Forum, 504-508, 1997.
Petit, G., Frequency comparison using GPS carrier phase: Some experimental results, Proc. 11th European Frequency and Time Forum, 336-340, 1997.
1998
Azoubib, J., and W. Lewandowski, A test of the use of GLONASS precise code for high-precision time transfer, Proc. 30th Precise Time and Time Interval Meeting, 201-210, 1998.
Beard, R., J. Brad, J. White, and O.J. Oaks, Calibration considerations for the IGS/BIPM pilot time transfer project using carrier phase, Proc. 30th Precise Time and Time Interval Meeting, 235-245, 1998.
Bisnath, S.B., and R.B. Langley, An introduction to the proposed BOLAS mission for ionospheric research, in 1997 IGS Analysis Center Workshop Proceedings, Jet Propulsion Laboratory, Pasadena, CA, in press 1998. [472.9 kB pdf]
Bruyninx, C., P. Defraigne, J-M. Sleewaegen, and P. Pâquet, Frequency transfer using GPS: A comparative study of code and carrier phase analysis results, Proc. 30th Precise Time and Time Interval Meeting, 307-314, 1998.
Clark, J.D., J.A. Davis, and A. Lowe, A very-short-baseline time transfer experiment using two geodetic-quality GPS receivers and carrier phase techniques, Proc. 30th Precise Time and Time Interval Meeting, 257-269, 1998.
Dudle, G., F. Overney, L. Prost, Th. Schildknecht, T. Springer, P. Hetzel, and E. Powers, First results on a transatlantic time and frequency transfer by GPS carrier phase, Proc. 30th Precise Time and Time Interval Meeting, 271-280, 1998.
Lahaye, F., M. Caissy, J. Popelar, and R.J. Douglas, Real-time GPS monitoring of atomic frequency standards in the Canadian Active Control System (CACS), Proc. 30th Precise Time and Time Interval Meeting, 187-199, 1998.
Larson, K., and J. Levine, Time transfer using the phase of the GPS carrier, IEEE Trans. on Ultrasonics, Ferroelectrics, & Freq. Control, 45(3), 539-540, 1998.
Larson, K.M., and J. Levine, Time transfer using the phase of the GPS carrier, Proc. 1998 IEEE International Frequency Control Symposium, 292-297, 1998. [3189.9 kB] [819.8 kB unix compressed]
Larson, K., L. Nelson, J. Levine, T. Parker, and E.D. Powers, A long-term comparison between GPS carrier-phase and two-way satellite time transfer, Proc. 30th Precise Time and Time Interval Meeting, 247-256, 1998. [4328.5 kB] [1195.1 kB unix compressed]
Lewandowski, W. and J. Azoubib, GPS+GLONASS: Toward subnanosecond time transfer, GPS World, 9(11), 30-39, 1998.
Overney, F., et al., Results of geodetic time transfer on an European baseline, Helv. Phys. Acta, 71(S1), 11-12, 1998.
Overney, F., L. Prost, G. Dudle, Th. Schildknecht, G. Beutler, J. Davis, J. Furlong, and P. Hetzel, GPS time transfer using geodetic receivers (GeTT): Results on European baselines, Proc. 12th European Frequency and Time Forum, 94-99, 1998.
Petit, G., C. Thomas, Z. Jiang, P. Uhrich, and F. Taris, Use of GPS Ashtech Z12T receivers for accurate time and frequency comparisons, Proc. 1998 IEEE International Frequency Control Symposium, 306-314, 1998.
Powers, E., P. Wheeler, D. Judge, and D. Matsakis, Hardware delay measurements and sensitivities in carrier phase time transfer, Proc. 30th Precise Time and Time Interval Meeting, 293-305, 1998.
Ray, J.R., IGS/BIPM time transfer project, in IGS 1997 Annual Report, Jet Propulsion Laboratory Publication 400-786, Pasadena, California, 26-27, 1998.
Ray, J.R., IGS/BIPM time transfer pilot project, in IGS 1997 Technical Reports, Jet Propulsion Laboratory Publication, Pasadena, California, 259-264, 1998.
Ray, J.R., The IGS/BIPM time transfer project, in 1998 IGS Analysis Center Workshop Proceedings, European Space Operations Centre, Darmstadt, Germany, 65-70, 1998. [65.6 kB]
Schildknecht, T., and T. Springer, High precision time and frequency transfer using GPS phase measurements, Proc. 30th Precise Time and Time Interval Meeting, 281-292, 1998.
Söhne, W., Precise high-rate satellite clocks at GFZ, in 1998 Analysis Center Workshop Proceedings, European Space Operations Centre, Darmstadt, Germany, 57-64, 1998.
Taris, F., P. Uhrich, C. Thomas, G. Petit, and Z. Jiang, Stability characterization of two multi-channel GPS receivers for accurate frequency transfer, Journées 1998 Systèmes de Référence Spatio-Temporels, Observatoire de Paris, Paris, France, in press 1998.
Zumberge, J.F., D.C. Jefferson, D.A. Stowers, R.L. Tjoelker, and L.E. Young, Precise clock solutions using carrier phase from GPS receivers in the International GPS Service, Proc. 30th Precise Time and Time Interval Meeting, 227-233, 1998.
Zumberge, J.F., M.M. Watkins, and F.H. Webb, Characteristics and applications of precise GPS clock solutions every 30 seconds, Navigation, 44(4), 449-456, 1998. [777.2 kB] [253.9 kB unix compressed]
1999
Azoubib, J., W. Lewandowski, J. Nawrocki, and D. Matsakis, Some tests of GLONASS precise-code time transfer, Proc. 1999 Joint European Frequency and Time Forum & 1999 IEEE International Frequency Control Symposium, 263-267, 1999.
Beard, R.L., and J.D. White, GPS application to time transfer and dissemination, GPS Solutions, 3(1), 17-25, 1999.
Bruyninx, C., P. Defraigne, V. Dehant, and P. Pâquet, Frequency transfer using GPS carrier phases: Influence of temperature variations near the receiver, Proc. 1999 Joint European Frequency and Time Forum & 1999 IEEE International Frequency Control Symposium, 283-286, 1999.
Bruyninx, C., P. Defraigne, and J-M. Sleewaegen, Time and frequency transfer using GPS codes and carrier phases: Onsite experiments, GPS Solutions, 3(2), 1-10, 1999. [765.5 kB unix compressed] [1650.7 kB MS/Word doc]
Bykhanov, E., Timing and positioning with GLONASS and GPS, GPS Solutions, 3(1), 26-31, 1999.
Clarke, J.D., J.A. Davis, and A.J. Lowe, Characteristics of NPL's geodetic GPS time transfer receivers, Proc. 1999 Joint European Frequency and Time Forum & IEEE International Frequency Control Symposium, 225-229, 1999.
Dach, R., T. Schildknecht, T. Springer, G. Dudle and L. Prost, Recent results with transatlantic GeTT campaign, Proc. 31st Precise Time and Time Interval Meeting, 461-469, 1999.
Dudle, G., F. Overney, Th. Schildknecht, T. Springer, and L. Prost, Transatlantic time and frequency transfer by GPS carrier phase, Proc. 1999 Joint European Frequency and Time Forum & IEEE International Frequency Control Symposium, 243-246, 1999.
Estey, L.H., and C.M. Meertens, TEQC: The multi-purpose toolkit for GPS/GLONASS data, GPS Solutions, 3(1), 42-49, 1999.
Johansson, J., and K. Jaldehag, Precise time transfer using GPS carrier phase-based techniques, Proc. 1999 Joint European Frequency and Time Forum & IEEE International Frequency Control Symposium, 247-250, 1999.
Larson, K.M., and J. Levine, Carrier phase time transfer, IEEE Trans. on Ultrasonics, Ferroelectrics, & Freq. Control, 46(4), 1001-1012, 1999. [4761.8 kB] [1342.6 kB unix compressed]
Levine, J., Time transfer using multi-channel GPS receivers, IEEE Trans. on Ultrasonics, Ferroelectrics, & Freq. Control, 46(2), 392-398, 1999.
Lewandowski, W., J. Azoubib, and W.J. Klepczynski, GPS: Primary tool for time transfer, Proc. IEEE, 87(1), 163-172, 1999.
Nelson, L.M., K. Larson, and J. Levine, Calibration of carrier phase GPS receivers, Proc. 1999 Joint European Frequency and Time Forum & 1999 IEEE International Frequency Control Symposium, 230-234, 1999.
Petit, G., C. Thomas, Z. Jiang, P. Uhrich, and F. Taris, Use of GPS Ashtech Z12T receivers for accurate time and frequency comparisons, IEEE Trans. on Ultrasonics, Ferroelectrics, & Freq. Control, 46(4), 941-949, 1999.
Petit, G., Z. Jiang, F. Taris, P. Uhrich, R. Barillet, and F. Hamouda, Processing strategies for accurate frequency comparison using GPS carrier phase, Proc. 1999 Joint European Frequency and Time Forum & 1999 IEEE International Frequency Control Symposium, 235-238, 1999.
Ray, J.R., IGS/BIPM time transfer project, GPS Solutions, 2(3), 37-40, 1999.
Ray, J.R., IGS/BIPM time transfer project, in Proceedings of the 1998 IGS Network Systems Workshop, Annapolis, Maryland, C. Noll, K. Gowey, and R.E. Neilan (eds.), Jet Propulsion Laboratory, Pasadena, California, JPL Publication 99-10, 63-66, 1999.
Ray, J.R., IGS/BIPM time and frequency project, in IGS 1998 Annual Report, Jet Propulsion Laboratory Publication 400-839, Pasadena, California, 31-33, 1999.
Ray, J.R., IGS/BIPM time transfer pilot project, in IGS 1998 Technical Reports, R. Neilan, A. Moore, and K. Gowey (eds.), Jet Propulsion Laboratory Publication 00-002, Pasadena, California, 213-217, 1999.
Ray, J., and G. Petit, IGS/BIPM Pilot Project to study time and frequency comparisons using GPS phase and code measurements, Interim Report to the 14th meeting of the Consultative Committee for Time and Frequency (CCTF), at BIPM, Sèvres, France, 20-22 April 1999.
Senior, K., D. Matsakis, and E. Powers, Attenuating day-boundary discontinuities in GPS carrier-phase time transfer, Proc. 31st Precise Time and Time Interval Meeting, 481-490, 1999.
Sleewaegen, J.M., GPS Selective Availability error contains a small component with a period of 3 seconds: Influence on the phase measurement noise, Geophys. Res. Lett., 26(13), 1925-1928, 1999.
Taris, F., P. Uhrich, G. Petit, Z. Jiang, R. Barillet, and F. Hamouda, Accurate frequency transfer: Progress in the implementation of the GPS carrier phase method at the BNM-LPTF, Proc. 1999 Joint European Frequency and Time Forum & 1999 IEEE International Frequency Control Symposium, 239-242, 1999.
Thomas, C., Accurate time and frequency transfer using GPS phase measurements, Journées 1998 Systèmes de Référence Spatio-Temporels, Observatoire de Paris, Paris, France, 248-253, 1999.
Wilson, B.D., C.H. Yinger, W.A. Feess, and C. Shank, New and improved: The broadcast interfrequency biases, GPS World, 10(9), 56-66, 1999.
2000
Azoubib, J., and W. Lewandowski, Test of GLONASS precise-code time transfer, Metrologia, 37, 55-59, 2000.
Bruyninx, C., P. Defraigne, V. Dehant, and P. Pâquet, Frequency transfer using GPS carrier phases: Influence of temperature variations near the receiver, IEEE Trans. Ultrasonics, Ferroelectrics, & Freq. Control, 47(2), 522-525, 2000.
Jiang, Z., G. Petit, P. Uhrich, and F. Taris, Use of GPS carrier phase for high precision frequency (time) comparison, Int. J. Geodesy Symp., 121, K.P. Schwarz (ed.), Springer, 41-46, 2000.
Larson, K.M., J. Levine, L.M. Nelson, and T.E. Parker, Assessment of GPS carrier-phase stability for time-transfer applications, IEEE Trans. on Ultrasonics, Ferroelectrics, & Freq. Control, 47(2), 484-494, 2000.
Petit, G., Z. Jiang, P. Uhrich, and F. Taris, Differential calibration of Ashtech Z12-T receivers for accurate time comparisons, Proc. 14th European Frequency and Time Forum, 40-44, 2000. [128.0 kB MS/Word]
Petovello, M.G., and G. Lachapelle, Estimation of clock stability using GPS, GPS Solutions, 4(1), 21-33, 2000.
Schildknecht, T., and G. Dudle, Time and frequency transfer: High precision using GPS phase measurements, GPS World, 11(2), 48-52, 2000.
Tyranowska, A., Time interval error (tie) measurement and frequency comparison of primary frequency standards using GPS carrier phase - First results, Artificial Satellites, 35(1), 25-39, 2000.
2001
Bilich, A., J. Plumb, K. Larson, and P. Axelrad, Mitigating multipath effects for carrier phase time-transfer, Proc. 33st Precise Time and Time Interval Meeting, in press 2001.
Chen, S.-S., H.-M. Peng, and C.-S. Liao, Monitoring the remote primary clock by using GPS carrier phase, Proc. 33st Precise Time and Time Interval Meeting, in press 2001.
Dach, R., S. Schaer, and Th. Schildknecht, Global time transfer capability using GPS carrier phase data, Proc. 33st Precise Time and Time Interval Meeting, in press 2001.
Defraigne, P., C. Bruyninx, J. Clarke, J. Ray, and K. Senior, Time transfer to TAI using geodetic receivers, Proc. 15th European Frequency and Time Forum, 517-521, 2001. [1494.6 kB pdf]
Defraigne, P., and C. Bruyninx, Time transfer for TAI using a geodetic receiver: An example with the Ashtech ZXII-T, GPS Solutions, 5(2), 43-50, 2001. [561.0 kB pdf]
Defraigne, P., G. Petit, C. Bruyninx, Use of geodetic receivers for TAI, Proc. 33st Precise Time and Time Interval Meeting, in press 2001. [981.3 kB pdf]
Dudle, G., L. Prost, R. Dach, U. Hugentobler, Th. Schildknecht, The GeTT campaign: Final results from the transatlantic measurements and calibration of the stations, Proc. 15th European Frequency and Time Forum, 163, 2001.
Kouba, J., and T. Springer, New IGS station and satellite clock combination, GPS Solutions, 4(4), 31-36, 2001. [360.4 kB MS/Word]
Lahaye, F., P. Collins, P. Héroux, M. Daniels, and J. Popelar, Monitoring GPS receiver and satellite clocks in real time: A network approach, GPS World, 12(11), 44-50, 2001.
Lewandowski, W., J. Nawrocki, and J. Azoubib, First use of IGEX precise ephemerides for intercontinental GLONASS P-code time transfer, J. Geodesy, 75, 620-625, 2001.
Matsakis, D., K. Senior, E. Powers, and J. DeYoung, Comparison of time transfer techniques, Proc. 33st Precise Time and Time Interval Meeting, in press 2001.
Nelson, L.M., and J. Levine, Understanding limitations of GPS carrier phase frequency transfer on a transatlantic baseline, Proc. 2001 IEEE International Frequency Control Symposium and PDA Exhibition, 205-210, 2001.
Parker, T., P. Hetzel, S. Jefferts, S. Weyers, L. Nelson, A. Bauch, and J. Levine, First comparison of remote cesium fountains, Proc. 15th European Frequency and Time Forum, 57-61, 2001.
Parker, T., P. Hetzel, S. Jefferts, S. Weyers, L. Nelson, A. Bauch, and J. Levine, First comparison of remote cesium fountains, Proc. 2001 IEEE International Frequency Control Symposium and PDA Exhibition, 63-68, 2001.
Petit, G., Z. Jiang, J. White, R. Beard, and E. Powers, Absolute calibration of an Ashtech Z12-T GPS receiver, GPS Solutions, 4(4), 41-46, 2001. [48.6 kB MS/Word]
fig. 1 || fig. 2 || fig. 3 || fig. 4 || fig. 5 || fig. 6
Petit, G., Z. Jiang, P. Moussay, J. White, E. Powers, G. Dudle, and P. Uhrich, Progresses in the calibration of "geodetic like" GPS receivers for accurate time comparisons, Proc. 15th European Frequency and Time Forum, 164-166, 2001. [1967.6 kB MS/Word]
Ray, J., and E.F. Arias, IGS/BIPM Pilot Project to study time and frequency comparisons using GPS phase and code measurements, Interim Report to the 15th meeting of the Consultative Committee for Time and Frequency (CCTF), at BIPM, Sèvres, France, 20-22 June 2001.
Ray, J., F. Arias, G. Petit, T. Springer, Th. Schildknecht, J. Clarke, and J. Johansson, Progress in carrier phase time transfer, GPS Solutions, 4(4), 47-54, 2001. [95.2 kB MS/Word]
Ray, J.R., and K. Senior, Temperature sensitivity of timing measurements using Dorne Margolin antennas, GPS Solutions, 5(1), 24-30, 2001. [1338.1 kB pdf]
Roosbeek, F., P. Defraigne, and C. Bruyninx, Time transfer experiments using GLONASS P-code measurements from RINEX files, GPS Solutions, 5(2), 51-62, 2001.
Senior, K., P. Koppang, D. Matsakis, and J. Ray, Developing an IGS time scale, Proc. 2001 IEEE International Frequency Control Symposium and PDA Exhibition, 211-218, 2001. [925.7 kB pdf]
Senior, K., and J. Ray, Accuracy and precision of GPS carrier phase clock estimates, Proc. 33st Precise Time and Time Interval Meeting, in press 2001. [386.2 kB ps]
Tolman, B., and D. Munlon, GPS carrier phase frequency transfer on the NIMA monitor station network, Proc. 33st Precise Time and Time Interval Meeting, in press 2001.
Tu, K.-Y., F.-R. Chang, C.-S. Liao, and L.S. Wang, Frequency syntonization using GPS carrier phase measurements, IEEE Trans. on Instrumentation and Measurement, 50(3), 833-838, 2001.
White, J., R. Beard, G. Landis, G. Petit, and E. Powers, Dual frequency absolute calibration of a geodetic GPS receiver for time transfer, Proc. 15th European Frequency and Time Forum, 167-170, 2001.
2002
Defraigne, P., K. Senior, J. Ray, and G. Petit, Time transfer within the IGS and links to TAI, Proc. URSI 27th General Assembly, in press 2002. [327.7 kB MS/Word]
2003
Ray, J., and K. Senior, IGS/BIPM Pilot Project: GPS carrier phase for time/frequency transfer and time scale formation, 4th International Time Scale Algorithms Symposium, at BIPM, Sèvres, France, 18-19 March 2002, Metrologia, 40(3), S270-S288, 2003; erratum, 40(4), 205, 2003.

(last updated 22 October 2003)

IGS/BIPM Pilot Project to Study Accurate Time and Frequency Comparisons Using GPS Phase and Code Measurements

IGS/BIPM Pilot Project to Study
Accurate Time and Frequency Comparisons
Using GPS Phase and Code Measurements