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Items where Author is "Davis, J A"

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Number of items: 34.

Report/Guide

Davis, J A; Furlong, J M (1997) Report on the study to determine the suitability of GPS disciplined oscillators as time and frequency standards traceable to the UK national time scale UTC (NPL). NPL Report. CTM 1

Article

Davis, J A; Greenhall, C A*; Stacey, P W (2005) A Kalman filter clock algorithm for use in the presence of flicker frequency modulation noise. Metrologia, 42 (1-2). pp. 1-10.

Harris, P M; Davis, J A; Cox, M G; Shemar, S L (2003) Least-squares anaylsis of time series data and its application to two-way satellite time and frequency transfer measurements. Metrologia, 40 (3). S342-S347

Davis, J A; Pearce, P R; Kirchner, D*; Ressler, H*; Hetzel, P*; Soering, A*; de Jong, G*; Grudler, P*; Baumont, F*; Veenstra, L* (1995) European two-way satellite time transfer experiments using the Intelsat (VA-F13) satellite at 307øE. IEEE Trans. Instrum. Meas., 44 (2). 90 - 93

Whibberley, P B; Davis, J A (1994) Advances in time and frequency metrology. NPL News, 374 (Spring). p. 27.

Conference or Workshop Item

Davis, J A; Bhattarai, S*; Ziebart, M* (2013) Development of a Kalman filter based GPS satellite clock time-offset prediction algorithm. In: 2012 European Frequency and Time Forum (EFTF 2012), 23-27 April 2012, Gothenburg, Sweden.

Davis, J A; Shemar, S L; Whibberley, P B (2011) A Kalman filter UTC(k) prediction and steering algorithm. In: 2011 Joint Conference of the IEEE International Frequency Control Symposium/ European Frequency and Time Forum Proceedings, 1-5 May 2011, San Francisco, USA.

Shemar, S L; Davis, J A; Whibberley, P B (2010) Preliminary results from NPL’s clock ensemble algorithm using hydrogen masers and caesium clocks. In: EFTF 2010 - 24th European Frequency and Time Forum, 13-16 April 2010, Noordwijk, Netherlands.

Davis, J A; Clarke, J D (2001) Time and frequency transfer using GPS common-view. In: BEMC 2001- 10th British Electromagnetic Measurement Conference, 6-8 November 2001, Harrogate, UK.

Clarke, J D; Davis, J A; Laverty, J R (1999) The BIPM/IGS pilot project: a model for high accuracy time dissemination in the future. In: BEMC 99 - 9th International Conference on Electromagnetic Measurement, November 1999, Brighton, UK.

Clarke, J D; Davis, J A; Lowe, A J (1999) Characterisation of NPL's geodetic GPS time transfer receivers. In: Proc. 1999 Joint Meeting of the European Frequency and Time Forum and the IEEE International Frequency Control Symposium, 13-16 April 1999, Besancon, France.

Davis, J A; Rougeaux, B (1999) The development of a computer model of a GPS disciplined oscillator to aid error budget determination. In: Proc. 1999 Joint Meeting of the European Frequency and Time Forum and the IEEE International Frequency Control Symposium, 13-16 April 1999, Besancon, France.

Shemar, S L; Davis, J A (1999) A study of delay instabilities within a two-way satellite time and frequency transfer earth station. In: Proc. 1999 Joint Meeting of the European Frequency and Time Forum and the IEEE International Frequency Control Symp., 12-16 April 1999, Besancon, France.

Shemar, S L; Davis, J A (1998) Improving the delay stability of a two-way satellite time and frequency transfer earth station. In: Annual Precise Time and Time Interval Systems and Applications Meeting, December 1998, Reston, VA, USA.

Overney, F*; Schildknecht, Th*; Beutler, G*; Prost, L*; Davis, J A; Furlong, J M (1998) Results of geodetic time transfer on an European baseline. In: CPEM '98 Conference on Precision Electromagnetic Measurements Conference Digest, 6-10 July 2003, Washington DC, USA.

Davis, J A; Furlong, J M; Clarke, J D (1998) The performance characteristics of a two-way time transfer earth station incorporating a new satre modem. In: Proceedings of the 12th European Frequency and Time Forum (EFTF), March 1998, Warsaw.

Davis, J A; Steele, J McA * (1997) A Caesium flying clock experiment between NPL and USNO. In: Proc. EFTF 97, European Frequency and Time Forum, March 1997, Neuchatel, Switzerland.

Petit, G*; Thomas, C*; Moussay, P*; Davis, J A; Miranian, M* (1997) Multi-channel GPS common-view time transfer experiments: First results and uncertainty study for short and long baselines. In: Proc. 29th Annual Precise Time and Time Interval Systems and Applications meeting, December 1997, Long Beach, California.

Furlong, J M; Davis, J A (1997) Suitabilty of using GPS disciplined oscillators as time and frequency standards traceable to the UK National Time Scale. In: Proc. 8th International Conference on Electromagnetic Measurement, 4-6 November 1997, National Physical Laboratory, Teddington.

Davis, J A; Furlong, J M (1997) A study examining the possibility of obtaining traceability to UK National Standards of Time and Frequency using GPS disciplined oscillators. In: Proc. 29th Annual Precise Time and Time Interval Systems and Applications meeting, December 1997, Long Beach, California, USA.

Davis, J A; Furlong, J M (1997) A study examining the possibility of obtaining traceability to UK National Standards using GPS disciplined oscillators. In: Proc. EFTF 97 Conference, European Frequency and Time Forum, 4-6 March 1997, Neuchatel, Switzerland.

Davis, J A; Lewandowski, W*; De Young, J A*; Kirchner, D*; Hetzel, P*; Parker, A; Klepczynski, W*; de Jong, G*; Söring, A*; Baumont, F*; Bartle, K A; Ressler, H*; Robnik, R*; Veenstra, L* (1996) Comparison of two-way satellite time and frequency transfer and GPS common-view time transfer during the intelsat field trial. In: 10th European Frequency and Time Forum, 5-7 March 1996, Brighton, UK.

Davis, J A (1996) Delay stability measurements made within a two-way time transfer system using satellite ranging from several locations. In: 10th European Frequency and Time Forum, 5 - 7 March 1996, Brighton, UK.

Hodge, C; Davis, J A (1996) Timing options and frequency control concepts for meeting user requirements with the second-generation global navigation satellite system (GNSS2). In: Tenth European Frequency and Time Forum, Institute of Electrical Engineers, 1996, London.

Hodge, C; Davis, J A; Gallop, J C; Allan, D W*; Ashby, N*; Bedrich, S*; Cutler, L S*; Hahn, J*; Nau, H*; Kern, R H*; Lewandowski, W*; Maleki, L*; Vessot, R F C* (1996) Towards 10 millimetre real-time position determination and 30 picosecond time-transfer capability with the next-generation of global navigation satellite systems (GNSS). In: Proc. ION GPS-96, Session DI: GNSS and WAAS Architects, 17 - 20 September 1996, Kansas City, Missouri, USA.

Davis, J A; Pearce, P R; Bartle, K A; Hetzel, P*; Kirchner, D*; Ressler, H*; Powell, W*; McKinley, A*; De Young, J A*; Klepczynski, W*; de Jong, G*; Soering, A*; Baumont, F*; Claudon, P*; Grudler, P*; Hackman, C*; Veenstra, L* (1995) Closing errors observed during two-way time transfer experiments. In: Proc. 9th European Frequency and Time Forum, March 1995, Besancon, France.

Davis, J A; Pearce, P R; Bartle, K A (1995) Sources of error in two-way satellite time and frequency transfers. In: BEMC 95 - 7th British Electromagnetic Measurements Conference Digest, November 1995, Malvern, UK.

Davis, J A (1995) Theoretical treatment of closing errors occuring in two-way satellite time transfers. In: Proc. 9th European Frequency and Time Forum, March 1995, Besancon, France.

Davis, J A; Pearce, P R (1995) Time dissemination in the United Kingdom using signals from geostationary television satellites. In: BEMC '95 - 7th British Electromagnetic Measurements Conference Digest, November 1995, Malvern, UK.

Klepczynski, W*; Davis, J A; Kirchner, D*; de Jong, G*; Baumont, F*; Hetzel, P*; Soering, A*; Hackman, C*; Granveaud, M*; Lewandowski, W* (1994) Comparisons of two-way satellite time transfer and GPS time transfer during the Intelsat field trial. In: Proc. PTTI94, December 1994, Washington.

Davis, J A; Pearce, P R; Kirchner, D*; Ressler, H*; Hetzel, P*; Soering, A*; de Jong, G*; Baumont, F*; Veenstra, L* (1994) European two-way satellite time transfer experiments using the Intelsat (VA-F13) satellite at 307øE. In: Conference Digest on Precision Electromagnetc Measurements (CPEM), 27 June - 1 July 1994, Boulder, Colorado, USA.

De Young, J A*; Klepczynski, W*; McKinley, A*; Powell, W*; Mai, P*; Hetzel, P*; Bauch, A*; Davis, J A; Pearce, P R; Baumont, F*; Claudon, P*; Grudler, P*; de Jong, G*; Kirchner, D*; Ressler, H*; Soering, A*; Hackman, C*; Veenstra, L* (1994) Preliminary results of the international two-way time and frequency transfer experiment. In: Proc. PTTI94, December 1994, Washington.

Davis, J A; Pearce, P R (1993) Characterisation of the signal delays in a ground station designed for satellite two way time transfer. In: 7th European Frequency and Time Forum, March 1993, Neuchatel, Switzerland.

Davis, J A; Pearce, P R (1993) Characterization of the signal delays in a ground station designed for satellite two way time transfer. In: 7th European Frequency and Time Forum, 16-18 March 1993, Neuchatel, Switzerland.

This list was generated on Mon Oct 25 07:35:45 2021 BST.