References
- Alves D. B. M. and Monico J. F. G., 2011. GPS/VRS positioning using atmospheric modeling, GPS Solutions, 15: 253–61.
- Castleden N., Hu G., Abbey D. A., Weihing D., Øvstedal O., Earls C. J., Featherstone W. E., 2005. First results from Virtual Reference Station (VRS) and Precise Point Positioning (PPP) GPS research at the Western Australian Centre for Geodesy. Proceedings, Journal of Global Positioning Systems, 3(1–2): 79–84.
- Dach R., Hugentobler U., Fridez P., Meindl M. (eds.), 2007. User Manual of the Bernese GPS Software Version 5.0. Astron. Inst., Univ. of Bern, Bern, Switzerland.
- Goad C. C. and Goodman L., 1974. A modified Hopfield tropospheric refraction correction model. Paper presented at the AGU Annual Fall Meeting, San Francisco, CA, Dec. 12-17 (abstract: EOS, Vol. 55, p. 1106, 1974).
- Hofmann-Wellenhof B., Lichtenegger H., Wasle E., 2008. GNSS – Global Navigation Satellite Systems GPS, GLONASS, Galileo, and more. Springer-Verlag, Wien, ISBN: 978-3-211-73012-6. 516.
- Hu G. R., Khoo H. S., Goh P. C., Law C. L., 2003. Development and assessment of GPS virtual reference stations for RTK positioning. J. Geod., 77: 292–302.
- Kashani I., 2005. Precise Point Positioning Supported by Local Ionospheric Modeling. Proceedings, Geodesy, Mapping and Geographic Information, Technion City, Israel, January 2005, 52–63.
- Lachapelle G., Alves P., 2002. Multiple Reference Station Approach: Overview and Current Research. Journal of Global Positioning Systems, 1(2): 133–6.
- Landau H., Vollath U., Chen X., 2002. Virtual reference station systems. Journal of Global Positioning Systems, 1(2): 137–43.
- Mannucci A., Wilson B., Yuan D., 1995. An Improved Ionospheric Correction Method for Wide-Area Augmentation Systems. ION GPS-95, Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation, Palm Springs, CA, September 12–15, Alexandria, VA: The Institute of Navigation, p. 1199–208.
- Memarzadeh Y. and Teunissen P. J. G., 2009, Ionospheric Modeling for Precise GNSS Applications. Ph.D Thesis, Delft Institute of Earth Observation and Space Systems (DEOS), Delft University of Technology, Netherlands.
- Nahavandchi H. and Soltanpour A., 2008. Local ionospheric modelling of GPS code and carrier phase observations. Survey Review, 40(309): 271–284.
- Schaer S., 1999. Mapping and Predicting the Earth’s Ionosphere Using the Global Positioning System. PhD Thesis, Astronomical Institute, University of Berne.
- Shepard D., 1968. A two-dimensional interpolation function for irregularly spaced data. Proceedings, 23rd National Conf ACM. American Meteorological Society, 517–523.
- Springer T. A., 1999. Modeling and Validating Orbits and Clocks Using the Global Positioning System. PhD dissertation, Astronomical Institute, University of Berne, Switzerland.
- Stanislawska I., Junchnikowski G., Cander L. J. R., 1996. The Kriging method of ionospheric parameter f0F2 instantaneous mapping. Annali di Geofisica, 39(4): 845– 852.
- Vollath U., Deking A., Landau H., Pagels C., 2001. Long Range RTK Positioning using Virtual Reference Stations. Proceedings of the International Symposium on Kinematic Systems in Geodesy, Geomatics and Navigation, Banff, Canada, June.
- Webster R. and Oliver M. A., 2007. Geostatistics for environmental scientists. John Wiley and Sons, England.
- Wielgosz P., Grejner-Brzezinska D. A., Kashani I., 2003. Regional Ionosphere Mapping with Kriging and Multiquadric Methods. Journal of Global Positioning Systems, 2(1): 48–55.