Richard Langley

Professor

PhD

Geodesy and Geomatics Engineering

Head Hall E-55

Fredericton

lang@unb.ca
1 506 453 5142
http://gauss.gge.unb.ca/CANSPACE.html



Richard Langley is a professor in the Department of Geodesy and Geomatics Engineering at the University of New Brunswick (UNB), where he has been teaching and conducting research since 1981. He has a B.Sc. in applied physics from the University of Waterloo and a Ph.D. in experimental space science from York University, Toronto. After obtaining his Ph.D., Dr. Langley spent two years with the Department of Earth and Planetary Sciences of the Massachusetts Institute of Technology where he carried out research in geodetic applications of lunar laser ranging and very long baseline interferometry.

Dr. Langley has worked extensively with the Global Positioning System. He is a co-author of the best-selling Guide to GPS Positioning published by Canadian GPS Associates and is a columnist and contributing editor of GPS World magazine. He has helped develop and present a number of seminar courses on GPS over the years. Dr. Langley has consulted extensively in the field of GPS with private companies and government agencies both in Canada and abroad.

Dr. Langley has held appointments to several national and international bodies including the Canada-wide Differential GPS Service Management Board and the The Institute of Navigation.

For his contributions to space geodesy, Dr. Langley shared two awards from the U.S. National Aeronautics and Space Administration. In 2004, he was made a fellow of The Institute of Navigation and in 2007, he was made a fellow of the Royal Institute of Navigation. In 2007, Dr. Langley also received The Institute of Navigation's Johannes Kepler lifetime achievement award.

Professional activities

Selected papers and reports

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

    • Serrano, L., D. Kim, and R.B. Langley (2005). "A New Approach for Mitigating Low-Frequency Carrier-Phase Multipath in GPS-RTK, Based on Between-Receivers Dynamics and an Effective Reflector." Proceedings of ION GNSS 2005, 18th International Technical Meeting of The Institute of Navigation, Long Beach, CA, 13-16 September 2005; pp. 94-103.

    • Kim, D., L. Serrano, and R.B. Langley (2005). "Compensation of the Effects of Phase Wind-up for Improving the Performance of a GPS RTK-Based Vehicle Navigation System." Proceedings of ION GNSS 2005, 18th International Technical Meeting of The Institute of Navigation, Long Beach, CA, 13-16 September 2005; pp. 346-354.

    • Rho, H. and R.B. Langley (2005). "SBAS Ionospheric Modeling with the Quadratic Approach: Reducing the Risks." Proceedings of ION GNSS 2005, 18th International Technical Meeting of The Institute of Navigation, Long Beach, CA, 13-16 September 2005; pp. 723-734.

    • Rho, H. and R.B. Langley (2005). "Dual-frequency GPS Precise Point Positioning with WADGPS Corrections." Proceedings of ION GNSS 2005, 18th International Technical Meeting of The Institute of Navigation, Long Beach, CA, 13-16 September 2005; pp. 1470-1482. An edited and updated version of this paper appeared in Navigation, Journal of The Institute of Navigation, Vol. 54, No. 2, Summer 2007; pp. 139-152.

    • Beran, T., R.B. Langley, S.B. Bisnath, and L. Serrano (2005). "High-Accuracy Point Positioning with Low-Cost GPS Receivers: How Good Can It Get?" Proceedings of ION GNSS 2005, 18th International Technical Meeting of The Institute of Navigation, Long Beach, CA, 13-16 September 2005; pp. 1524-1534. (Best presentation in session award) An edited and updated version of this paper appearded in Navigation, Journal of The Institute of Navigation, Vol. 54, No. 1, Spring 2007, pp. 53-63.

    • Larocca, A.P.C., R.E. Schaal, M.C. Santos, R.B. Langley, and D. Kim (2005). "Dynamic Monitoring of Structures at the Millimeter Level: GPS versus Displacement Transducers and Accelerometers Ð A Summary." Proceedings of ION GNSS 2005, 18th International Technical Meeting of The Institute of Navigation, Long Beach, CA, 13-16 September 2005; pp. 1957-1960.

    • Larocca, A.P.C., R.E. Schaal, M.C. Santos, R.B. Langley (2005). "Monitoring the Deflection of the Pierre-Laporte Suspension Bridge with the Phase Residual Method." Proceedings of ION GNSS 2005, 18th International Technical Meeting of The Institute of Navigation, Long Beach, CA, 13-16 September 2005; pp. 2023-2028.

    • Ahn, Y.W., D. Kim, P. Dare, and R.B. Langley (2005). "Long Baseline GPS RTK Performance in a Marine Environment using NWP Ray-Tracing Technique under Varying Troposphere Conditions." Proceedings of ION GNSS 2005, 18th International Technical Meeting of The Institute of Navigation, Long Beach, CA, 13-16 September 2005; pp. 2092-2103.

  • James, H.G., P.A. Bernhardt, R.B. Langley, C.L. Siefring, and A.W. Yau (2005). "Radio-Frequency Experiments with the Enhanced Polar Outflow Probe Satellite Payload Using Its RRI, GAP, and CERTO Instruments." Proceedings of URSI GA 2005, the 28th General Assembly of the International Union of Radio Science, New Delhi, India, 23-29 October 2005; On line .

2006

    • Lawrence, D., R.B. Langley, D. Kim, F.-C. Chan, and B. Pervan (2006). "Decorrelation of Troposphere Across Short Baselines." Proceedings of IEEE/PLANS 2006, San Diego, CA, 24-27 April 2006; pp. 97-102. (Best paper in track award)

    • Ward, W.E., D. Degenstein, R. Langley, R.P. Lowe, A. Manson, A. Bell, and G. Buttner (2006). "An Atmospheric Dynamics Mission for Investigating Dynamical Processes in the Middle Atmosphere." Proceedings of ASTRO 2006, the 13th Astronautics Conference of the Canadian Aeronautics and Space Institute, Montreal, 25-27 April 2006.

    • Kim, D., L. Serrano, and R.B. Langley (2006). "Phase Wind-Up Analysis: Assessing Real-Time Kinematic Performance." GPS World, September, Vol. 17., No. 9, pp. 58-64.

    • Serrano, L., D. Kim, and R.B. Langley (2006). "Near Real-Time Carrier-Phase Multipath Mitigation in Kinematic Applications, Using a Dual-Antenna System and Effective Close Range Reflectors." Proceedings of ION GNSS 2006, the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation, Fort Worth, TX, 26-29 September 2006; pp. 863-872.

    • Larocca, A.P.C., R.E. Schaal, M.C. Santos, and R.B. Langley (2006). "Analyzing the Dynamic Behavior of Suspension Bridge Towers Using GPS." Proceedings of ION GNSS 2006, the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation, Fort Worth, TX, 26-29 September 2006; pp. 1477-1486.

  • Leandro, R.F., M.C. Santos, and R.B. Langley (2006). "Wide Area Neutral Atmosphere Models for GNSS Applications." Proceedings of ION GNSS 2006, the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation, Fort Worth, TX, 26-29 September 2006; pp. 1910-1924. (Best presentation in session award)

2007

    • Sükeová, L., M.C. Santos, R.B. Langley, R.F. Leandro, O. Nnani, and F. Nievinski (2007). "GPS L2C Signal Quality Analysis." Proceedings of the 63rd Annual Meeting of The Institute of Navigation, Cambridge, MA, 23-25 April 2007; pp. 232-241.

    • Rho, H. and R.B. Langley (2007). "WAAS and CDGPS Performance on Ionospheric Storm Days Compared to Quiet Days." Proceedings of International Beacon Satellite Symposium, Boston, MA, 11-15 June 2007.

  • Leandro, R.F., R.B. Langley, and M. Santos (2007). "UNB3m_pack: A Neutral Atmosphere Delay Package for Radiometric Space Techniques." GPS Solutions; in press.