All Stories

  1. Behavior of Broadcast Ionospheric-Delay Models from GPS, Beidou, and Galileo Systems

    Article • Artificial Satellites, June 2020, De Gruyter

    Dr Ashraf Farah

  2. Assessment of BeiDou’s Tropospheric Model (IGGtrop) for tropospheric delay correction in northern hemisphere

    Article • Journal of Applied Geodesy, January 2020, De Gruyter

    Dr Ashraf Farah

  3. Ionospheric-Delay Correction from BeiDou & GPS Systems for Northern Hemisphere

    Article • Artificial Satellites, March 2019, De Gruyter

    Dr Ashraf Farah

  4. Behaviour of Nequick2 Model for Global Ionospheric Delay Mitigation During Solar Cycle-24

    Article • Artificial Satellites, December 2018, De Gruyter

    Dr Ashraf Farah

  5. studying the accuracy of Kinematic-Precise Point Positioning for Hydrographic applications

    Article • Artificial Satellites, March 2018, De Gruyter

    Dr Ashraf Farah

  6. Variation of Static-PPP Positioning Accuracy Using GPS-Single Frequency Observations (Aswan, Egypt)

    Article • Artificial Satellites, January 2017, De Gruyter

    Dr Ashraf Farah

  7. Accuracy Assessment Study for Kinematic GPS–PPP Using Single- and Dual-Frequency Observations with Various Software Packages

    Article • Arabian Journal for Science and Engineering, February 2015, Springer Science + Business Media

    Dr Ashraf Farah

  8. Accuracy Assessment Study of UNB3m Neutral Atmosphere Model for Global Tropospheric Delay Mitigation

    Article • Artificial Satellites, January 2015, De Gruyter

    Dr Ashraf Farah

  9. Positional Accuracy Assessment of Googleearth in Riyadh

    Article • Artificial Satellites, January 2014, De Gruyter

    Dr Ashraf Farah

  10. Assessment study of static-PPP convergence behaviour using gps, glonass and mixed gps/glonass observations

    Article • Artificial Satellites, January 2014, De Gruyter

    Dr Ashraf Farah

  11. Assessment Study of Using Online (CSRS) GPS-PPP Service for Mapping Applications in Egypt

    Article • Journal of Geodetic Science, January 2011, De Gruyter

    Dr Ashraf Farah

  12. Digital Road Profile Using Kinematic GPS

    Article • Artificial Satellites, January 2009, De Gruyter

    Dr Ashraf Farah

  13. Accuracy Assessment of Digital Elevation Models Using GPS

    Article • Artificial Satellites, January 2008, De Gruyter

    Mr Ashraf Abdallah, Dr Ashraf Farah

  14. High Spatial Variation Tropospheric Model for GPS-Data Simulation

    Article • Journal of Navigation, August 2005, Cambridge University Press

    Dr Ashraf Farah