General

Kan Wang is a Professor at the National Time Service Center, Chinese Academy of Sciences. She obtained her Ph.D. at ETH Zurich in advanced modelling of high-precision GNSS positioning. She has more than 10 years of expertise in the fields of satellite positioning and navigation, and was involved in more than 10 international projects. She had over 30 SCI publications and 40 contributions in international conferences. Her current research interests include high-precision GNSS positioning, LEO POD and clock determination, LEO-augmented PNT services, and integrity monitoring. 


Research Areas

Satellite positioning and navigation, LEO POD and clock determination, LEO-augmented positioning, Integrity monitoring

Education

08.2010 – 03.2016            ETH Zurich, Switzerland

  Institute of Geodesy and Photogrammetry

  Graduated as Doctor of Sciences ETH Zurich 

10.2004 – 05.2010            University of Stuttgart, Germany

                                          Geodesy and Geoinformatics

                                          Graduated as Dipl.-Ing.


09.2003 – 07.2004            University of Wuhan, China

                                          Geographic Information System

                                          Graduated as Bachelor of Science


Experience

   
Work Experience

04.2022 until now    Professor

                                Time National Service Center, Chinese Academy of Sciences


05.2021 - 04.2022    Associate Professor

                                Time National Service Center, Chinese Academy of Sciences


01.2020 - 04.2021    Research Fellow

                                 School of Earth and Planetary Sciences, Curtin University, Australia


11.2016 - 01.2020    Research Associate

                                 School of Earth and Planetary Sciences, Curtin University, Australia


08.2010 - 06.2016    Scientific Assistant

                                 Institute of Geodesy and Photogrammetry, ETH Zurich, Switzerland


Publications

Papers

SCI Journal publications

  1. ​El-Mowafy A.*, Wang K. (2022) Integrity monitoring for kinematic precise point positioning in open-sky environments with improved computational performance. Measurement Science and Technology, 33, 085004. doi: 10.1088/1361-6501/ac5d75
  2. Wang K., El-Mowafy A., Wang W., Yang L., Yang X. (2022) Integrity Monitoring of PPP-RTK Positioning; Part II: LEO Augmentation. Remote Sensing, 14(7), 1599. doi: 10.3390/rs14071599
  3. Allahvirdi-Zadeh A.Awange J., El-Mowafy A., Ding T., Wang K. (2022) Stability of CubeSat Clocks and their impacts on GNSS Radio Occultation. Remote Sensing, 14(2), 362. doi: 10.3390/rs14020362

  4. Wang K.*, El-Mowafy A., Qin W., Yang X. (2021) Integrity Monitoring of PPP-RTK Positioning; Part I: GNSS-based IM Procedure. Remote Sensing, 14(1), 44. doi: 10.3390/rs14010044

  5. Su H.*, Yang T., Wang K., Sun B., Yang X. (2021) Evaluation of Precipitable Water Vapor Retrieval from Homogeneously Reprocessed Long-Term GNSS Tropospheric Zenith Wet Delay and Multi-Technique. Remote Sensing, 13(21), 4490. doi: 10.3390/rs13214490

  6. Allahvirdi-Zadeh A., Wang K.*, El-Mowafy A. (2021) Precise Orbit Determination of LEO Satellites Based on Undifferenced GNSS Observations. Journal of Surveying Engineering, 148(1), 03121001. doi: 10.1061/(ASCE)SU.1943-5428.0000382

  7. Wang K., El-Mowafy A.* (2021) LEO satellite clock analysis and prediction for positioning applications. Geo-spatial Information Science, in Press, June 2021. doi: 10.1080/10095020.2021.1917310

  8. Wang K.*, El-Mowafy A., Rizos C., Wang J. (2021) SBAS DFMC service for Road Transport: Positioning and integrity monitoring with a new weighting model. Journal of Geodesy, 95(3), 29. doi: 10.1007/s00190-021-01474-z

  9. Allahvirdi-Zadeh A., Wang K.*, El-Mowafy A. (2021) POD of small LEO satellites based on precise real-time MADOCA and SBAS-aided PPP corrections. GPS Solutions, 25,31. doi: 10.1007/s10291-020-01078-8

  10. Wang K.*, El-Mowafy A. (2021) Effect of biases in integrity monitoring for RTK positioning. Advances in Space Research, 67(12): 4025-4042.doi: 10.1016/j.asr.2021.02.032

  11. Wang K., El-Mowafy A.*, Rizos C. (2021) Integrity monitoring for precise orbit determination of LEO satellites. GPS Solutions, 26(1), 32. doi: 10.1007/s10291-021-01200-4

  12. Wang K.*, El-Mowafy A. (2020) Proposed orbital products for positioning using mega-constellation LEO satellites. Sensors 20(20), 5806. doi: 10.3390/s20205806

  13. Wang K.*, Allahvirdi-Zadeh A., El-Mowafy A., Gross J.N. (2020) A Sensitivity Study of POD Using Dual-Frequency GPS for CubeSats Data Limitation and Resources. Remote Sensing 12(13), 2107. doi:10.3390/rs12132107

  14. Wang K.*, El-Mowafy A., Rizos C., Wang J. (2020) Integrity Monitoring for Horizontal RTK Positioning: New Weighting Model and Overbounding CDF in Open-Sky and Suburban Scenarios. Remote Sensing, 12(7):1173. doi: 10.3390/rs12071173

  15. Wang K.*, Teunissen P.J.G., El-Mowafy A. (2020) The ADOP and PDOP: Two complementary diagnostics for GNSS positioning. Journal of Surveying Engineering, 146(2): 04020008. doi: 10.1061/(ASCE)SU.1943-5428.0000313

  16. Wu J., Wang K.*, El-Mowafy A. (2020) Preliminary performance analysis of a prototype DFMC SBAS service over Australia and Asia-Pacific. Advances in Space Research, 66(6):1329-1341. doi: 10.1016/j.asr.2020.05.026

  17. Hassan T., El-Mowafy A., Wang K.* (2020) A Review of System Integration and Current Integrity Monitoring Methods for Positioning in Intelligent Transport Systems. IET Intelligent Transport Systems, 15(1):43-60. doi: 10.1049/itr2.12003

  18. Wang K., Chen P.*, Teunissen P.J.G. (2019) Single-epoch, single-frequency multi-GNSS L5 RTK under high-elevation masking. Sensors 19(5):1066. doi: 10.3390/s19051066

  19. Wang K.*, Khodabandeh A., Teunissen P.J.G. (2019) Precision analysis of troposphere sensing using GPS single-frequency signals. Advances in Space Research, 61(1):148-159. doi: 10.1016/j.asr.2018.09.006

  20. El-Mowafy A.*, Imparato D., Rizos C., Wang J., Wang K. (2019) On hypothesis testing in RAIM algorithms: generalized likelihood ratio test, solution separation test and a possible alternative. Measurement Science and Technology, 30(7):075001. doi: 10.1088/1361-6501/ab1836

  21. Wang K., Chen P.*, Zaminpardaz S., Teunissen P.J.G. (2019) Precise Regional L5 Positioning with IRNSS and QZSS: stand-alone and combined. GPS Solutions 23:10. doi: 10.1007/s10291-018-0800-4

  22. Wang K., Chen P.*, Teunissen P.J.G. (2018) Fast phase-only positioning with triple-frequency GPS. Sensors 18(11):3922. doi: 10.3390/s18113922

  23. Wang K.*, Khodabandeh A., Teunissen P.J.G., Nadarajah N. (2018) Satellite-clock modeling in single-frequency PPP-RTK processing. Journal of Surveying Engineering, 144(2): 04018003. doi: 10.1061/(ASCE)SU.1943-5428.0000252

  24. Wang K., Khodabandeh A.*, Teunissen P.J.G. (2018) MSE-impact of PPP-RTK ZTD estimation strategies. Advances in Space Research 61(12): 2955-2971. doi: 10.1016/j.asr.2018.04.012

  25. Wang K.*, Khodabandeh A., Teunissen P.J.G. (2018) Five-frequency Galileo long-baseline ambiguity resolution with multipath mitigation. GPS Solutions 22:75. doi: 10.1007/s10291-018-0738-6

  26. Zaminpardaz S., Wang K., Teunissen P.J.G.* (2018) Australia-First High-Precision Positioning Results with New Japanese QZSS Regional Satellite System. GPS Solutions 22:101. doi: 10.1007/s10291-018-0763-5

  27. Nadarajah N., Khodabandeh A., Wang K., Choudhury M., Teunissen P.J.G.* (2018) Multi-GNSS PPP-RTK: from large- to small-scale networks. Sensors 18(4):1078. doi: 10.3390/s18041078

  28. Wang K.*, Khodabandeh A., Teunissen P.J.G. (2017) A study on predicting network corrections in PPP-RTK processing. Advances in Space Research 60(7):1463-1477. doi: 10.1016/j.asr.2017.06.043

  29. Wang K.*, Rothacher M. (2015) GNSS triple-frequency geometry-free and ionosphere-free track-to-track ambiguities. Advances in Space Research 55(11): 2668-2677. doi: 10.1016/j.asr.2015.02.028

  30. Glaser S.*, Fritsche M., Sosnica K., Rodriguez-Solano C.J., Wang K., Dach R., Hugentobler U., Rothacher M., Dietrich R. (2015) A consistent combination of GNSS and SLR with minimum constraints. Journal of Geodesy 89(12): 1165-1180. doi: 10.1007/s00190-015-0842-0

  31. Glaser S.*, Fritsche M., Sosnica K., Rodriguez-Solano C.J., Wang K., Dach R., Hugentobler U., Rothacher M., Dietrich R. (2015) Errtum to: A consistent combination of GNSS and SLR with minimum constraints. Journal of Geodesy 89(12): 1181-1182. doi: 10.1007/s00190-015-0853-x

  32. Fritsche M.*, Sosnica K., Rodriguez-Solano C.J., Steigenberger P., Wang K., Dietrich R., Dach R., Hugentobler U., Rothacher M. (2014) Homogeneous reprocessing of GPS, GLONASS and SLR observations. Journal of Geodesy 88(7): 625-642. doi:10.1007/s00190-014-0710-3

  33. Wang K.*, Rothacher M. (2013) Ambiguity resolution for triple-frequency geometry-free and ionosphere-free combination tested with real data. Journal of Geodesy 87 (6): 539-553. doi: 10.1007/s00190-013-0630-7

  34. Wang K.*, Rothacher M. (2013) Stochastic modeling of high-stability ground clocks in GPS analysis. Journal of Geodesy 87(5): 427-437. doi: 10.1007/s00190-013-0616-5

  35. Varga P., Krumm F.Riguzzi F.*, Doglioni C.Süle B., Wang K., Panza G.F. (2012) Global pattern of earthquakes and seismic energy distributions: Insights for the mechanisms of plate tectonics. Tectonophysics 530-531: 80-86. doi:10.1016/j.tecto.2011.10.014


Conference papers

  1. Wang K., El-Mowafy A., Rizos C. (2022) Bridging clock gaps in Mega-constellation LEO satellites. In Proc. ION ITM 2022, January, 2022, pp. 881-892. doi: 10.33012/2022.18246

  2. Wang K., El-Mowafy A., Khaki M., Sutherland T., Rubinov E. (2020) Assessment of the New DFMC and PPP services of the second-generation SBAS in the Mining and Urban environments. In Proc. IGNSS Symposium, No. 49, 5-7 February 2020, Sydney, Australia

  3. Wang K., El-Mowafy A., Wu J. (2020) Integrity Monitoring Using ARAIM in Bridging DFMC SBAS Outages for Road Transport. In Proc. ION GNSS+ 2020, September, 2020, pp. 2430-2439. doi10.33012/2020.17659

  4. El-Mowafy A., Wang K. (2019) Second Generation SBAS – Performance Analysis and Bridging Positioning and Integrity Monitoring during SBAS Outages in the Urban Environment. In Proc. ION GNSS+ 2019, Miami, Florida, September 2019, pp. 2842-2854. doi: 10.33012/2019.16923

  5. Glaser S., Fritsche M., Sosnica K., Rodriguez-Solano C.J., Wang K., Dach R., Hugentobler U., Rothacher M., Dietrich R. (2015) Validation of Components of Local Ties. In: van Dam T. (eds) REFAG 2014. International Association of Geodesy Symposia, vol 146. Springer, Cham. pp. 21-28. doi: 10.1007/1345_2015_190

  6. Wang K., Meindl M., Geiger A., Rothacher M., Scaramuzza M., Troller M., Truffer P. (2014) Assessment of Single-difference Ionospheric Residuals in a Regional Network for GBAS. In Proc. ION GNSS+ 2014, Tampa, Florida, USA, September 8 - 12, 2014, pp. 2384-2393



Research Interests

Satellite positioning and navigation, LEO POD and clock determination, LEO-augmented positioning, Integrity monitoring, PPP-RTK, Clock modelling, Integer ambiguity resolution

Conferences

  1. Wang K., El-Mowafy A., Rizos C. (2022) Bridging clock gaps in Mega-constellation LEO satellites. In Proc. ION ITM  2022, online, January, 2022.

  2. Wang K., Yang X. (2021) The benefits of LEO satellite clock modelling on its POD. 2021 China Time & Frequency Symposium, 13-15 October 2021, Dunhuang, China.

  3. Wang K., El-Mowafy A., Khaki M., Sutherland T., Rubinov E. (2020) Assessment of the New DFMC and PPP services of the second-generation SBAS in the Mining and Urban environments. IGNSS Symposium, 5-7 February 2020, Sydney, Australia

  4. Wang K., El-Mowafy A., Wu J. (2020) Integrity Monitoring Using ARAIM in Bridging DFMC SBAS Outages for Road Transport. ION GNSS+ 2020, September, 2020.

  5. Wang K., El-Mowafy A. (2020) Positioning and integrity monitoring using the new DFMC SBAS service in the road transport. EGU 2020, online, April 4-8, 2020.

  6. El-Mowafy A., Wang K. (2019) Second Generation SBAS – Performance Analysis and Bridging Positioning and Integrity Monitoring during SBAS Outages in the Urban Environment. ION GNSS+ 2019, Miami, Florida, September 2019.

  7. Wang K., Rothacher M., Meindl M., Schoenemann E., Enderle W. (2017) Improvement in the estimation of troposphere zenith delays using high-accuracy clocks. IGS Workshop 2017, July 2017, Paris, France.

  8. Susnik A., Dach R., Wang K., Meindl M., Rothacher M., Koch D., Romanyuk T., Selmke I., Hugentobler U., Schönemann E., Enderle W. (2017) Improved GNSS-Based Precise Orbit Determination by using highly accurate clocks. IGS Workshop 2017, July 2017, Paris, France.

  9. Wang K., Meindl M., Rothacher M., Stehlin X., Crottet F., Rochat P. (2016) Modelling of low-cost atomic clocks and its impact on code-based kinematic positioning. International Conference on GNSS+ 2016 (ICG+2016), July 27-30, 2016, Shanghai, China.

  10. Wang K., Meindl M., Rothacher M., Schoenemann E., Enderle W. (2016) Temperature influences in receiver clock modelling. EGU General Assembly 2016, Vienna, Austria, April 17-22, 2016.

  11. Orliac E., Dach R., Wang K., Meindl M., Rothacher M., Romanyuk T., Hugentobler U., Schoenemann E., Enderle W. (2016) ESA project on improving GNSS-based precise orbit determination by using highly accurate clocks. IGS Workshop 2016, Sydney, Australia, February 8-12, 2016.

  12. Wang K., Meindl M., Stehlin X., Gendre E., Rothacher M., Rochat P. (2015) Deterministic and stochastic modelling of low-cost clocks in pseudo-range kinematic positioning. The 26th IUGG General Assembly 2015, Prague, Czech Republic, June 22 - July 2, 2015.

  13. Wang K., Meindl M., Rothacher M. (2015) GNSS-LoC. Swiss national report on the geodetic activities in the years 2011-2015, presented to the XXVI General Assembly of the International Union of Geodesy and Geophysics in Prague, Czech Republic, June/July 2015.

  14. Wang K., Rothacher M. (2015) GNSS Clock Modelling and Estimation. Swiss national report on the geodetic activities in the years 2011-2015, presented to the XXVI General Assembly of the International Union of Geodesy and Geophysics in Prague, Czech Republic, June/July 2015.

  15. Wang K., Rothacher M. (2015) Triple-Frequency Ambiguity Resolution. Swiss national report on the geodetic activities in the years 2011-2015, presented to the XXVI General Assembly of the International Union of Geodesy and Geophysics in Prague, Czech Republic, June/July 2015.

  16. Wang K., Meindl M., Geiger A., Rothacher M., Scaramuzza M., Troller M., Truffer P. (2015) Ionosphere Gradients for GBAS. Swiss national report on the geodetic activities in the years 2011-2015, presented to the XXVI General Assembly of the International Union of Geodesy and Geophysics in Prague, Czech Republic, June/July 2015.

  17. Wang K., Rothacher M. (2015) GNSS reprocessing. Swiss national report on the geodetic activities in the years 2011-2015, presented to the XXVI General Assembly of the International Union of Geodesy and Geophysics in Prague, Czech Republic, June/July 2015.

  18. Wang K., Hollenstein C., Rothacher M. (2015) Active Debris Removal (GSTP 5.4). Swiss national report on the geodetic activities in the years 2011-2015, presented to the XXVI General Assembly of the International Union of Geodesy and Geophysics in Prague, Czech Republic, June/July 2015.

  19. Geiger A., Wang K., Meindl M., Rothacher M., Scaramuzza M., Troller M., Truffer P. (2015) Non-ionosphere biases in the single-difference ionospheric residuals. European Navigation Conference 2015, Bordeaux, France, April 7-10, 2015.

  20. Glaser S., Fritsche M., Sosnica K., Rodriguez-Solano C.J., Wang K., Dach R., Hugentobler U., Rothacher M., Dietrich R. (2015) Validation of Components of Local Ties. IAG Commission 1 Symposium Kirchberg, Luxembourg, 13–17 October, 2014

  21. Wang K., Meindl M., Geiger A., Rothacher M., Scaramuzza M., Troller M., Truffer P. (2014) Assessment of Single-difference Ionospheric Residuals in a Regional Network for GBAS. ION GNSS+ 2014, Tampa, Florida, USA, September 8 - 12, 2014.

  22. Wang K., Rothacher M. (2014) Modeling of low-stability GPS receiver clocks and its impact on pseudo-range kinematic coordinates. European Frequency and Time Forum (EFTF) 2014, Neuchâtel, Switzerland, June 23-26, 2014.

  23. Meindl M., Wang K., Geiger A., Rothacher M. (2014) Single-difference ionospheric residuals in a regional network. IGS Workshop 2014, Pasadena, CA, USA, June 23-27, 2014.

  24. Wang K., Rothacher M. (2013) Stochastic modeling of high-performance GNSS satellite clocks and its impact on kinematic GNSS orbits. International Association of Geodesy (IAG) 2013, Potsdam, Germany, September 1-6, 2013.

  25. Wang K., Rothacher M. (2013) Satellite track-to-track ambiguity resolution for GNSS dual- and triple-frequency linear combinations. European Geosciences Union (EGU) General Assembly 2013, Vienna, Austria, April 7-12, 2013.

  26. Orliac E., Dach R., Wang K., Rothacher M., Hugentobler U., Svehla D., Steigerberger P., Enderle W. (2013) Satellite Clock Modelling and Multi - GNSS Solutions. IFCS-EFTF Symposium 2013, Prague, Czech Republic, July 21-25, 2013.

  27. Fritsche M., Rodriguez-Solano C.J., Steigenberger P., Sosnica K., Wang K., Dietrich R., Hugentobler U., Dach R., Rothacher M. (2013) Joint Reprocessing of GPS, GLONASS and SLR. European Geosciences Union (EGU) General Assembly 2013, Vienna, Austria, April 7-12, 2013.

  28. Fritsche M., Rodriguez-Solano C.J., Steigenberger P., Sosnica K., Wang K., Dietrich R., Hugentobler U., Dach R., Rothacher M. (2013) Impact of GLONASS in a rigorous combination with GPS. IAG 2013, Potsdam, Germany, September 1-6, 2013.

  29. Wang K., Rothacher M. (2012) Kinematic positioning improvements with stochastic clock modelling. European Frequency and Time Forum (EFTF) 2012, Gothenburg, Sweden, April 24-26, 2012.

  30. Wang K., Rothacher M. (2012) Ionosphere-free and geometry-free triple-frequency combinations for ambiguity resolution. The American Geophysical Union (AGU) Fall Meeting 2012, San Francisco, CA, USA, December 3-7, 2012.

  31. Orliac E., Dach R., Wang K., Rothacher M., Voithenleitner D., Hugertobler U., Heinze M., Svehla D. (2012) Deterministic and Stochastic Receiver Clock Modeling in Precise Point Positioning. European Frequency and Time Forum (EFTF) 2012, Gothenburg, Sweden, April 24-26, 2012.

  32. Orliac E., Dach R., Wang K., Rothacher M., Voithenleitner D., Hugertobler U., Heinze M., Svehla D. (2012) Deterministic and stochastic receiver clock modeling in precise point positioning. European Geosciences Union (EGU) General Assembly 2012, Vienna, Austria, April 22-27, 2012.

  33. Orliac E., Dach R., Wang K., Rothacher M., Voithenleitner D., Hugertobler U., Heinze M., Svehla D. (2012) Biases and Clock Modelling in the Frame of Ambiguity Resolution. IGS Workshop 2012, Olsztyn, Poland, July 23-27, 2012.

  34. Orliac E., Dach R., Wang K., Rothacher M., Voithenleitner D., Hugertobler U., Heinze M., Svehla D. (2012) Impact of code and phase biases and clock modelling on ambiguity resolution. The American Geophysical Union (AGU) Fall Meeting 2012, San Francisco, CA, USA, December 3-7, 2012.

  35. Sosnica K., Thaller D., Dach R., Ostini L., Jäggi A., Beutler G., Rodriguez-Solano C.J., Steigenberger P., Hugentobler U., Fritsche M., Dietrich R., Wang K., Rothacher M. (2012) Time Series Analysis of GNSS-SLR Co-located Stations. IGS Workshop 2012, Olsztyn, Poland, July 23-27, 2012.

  36. Fritsche M., Rodriguez-Solano C.J., Steigenberger P., Sosnica K., Wang K., Dietrich R., Hugentobler U., Dach R., Rothacher M. (2013) Joint Reprocessing of GPS, GLONASS and SLR Observations – First Results. IGS Workshop 2012, Olsztyn, Poland, July 23-27, 2012.

  37. Wang K., Rothacher M. (2011) Positioning improvements with stochastic clock modelling. The 9th Swiss Geoscience Meeting, Zurich, Switzerland, November 11–13, 2011.

  38. Wang K., Rothacher M. (2011) GNSS Clock Modelling and Estimation. Swiss national report on the geodetic activities in the years 2007-2011, presented to the XXV General Assembly of the International Union of Geodesy and Geophysics in Melbourne, Australia, June/July 2011.

  39. Orliac E., Dach R., Voithenleitner D., Hugentobler U., Wang K., Rothacher M., Svehla D. (2011) Clock modeling for GNSS applications. The American Geophysical Union (AGU) Fall Meeting 2011, San Francisco, CA, USA, December 3-9, 2011.

  40. Riguzzi F., Krumm F., Wang K., Kiszely M., Varga P. (2009) Influence of LOD variations on seismic energy release. European Geosciences Union (EGU) General Assembly 2009, April 2009.