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http://dx.doi.org/10.7848/ksgpc.2018.36.4.245

Impact of Tropospheric Modeling Schemes into Accuracy of Estimated Ellipsoidal Heights by GPS Baseline Processing: Experimental Analysis and Results  

Lee, Hungkyu (School of Civil, Environmental and Chemical Engineering, Changwon National University)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.36, no.4, 2018 , pp. 245-254 More about this Journal
Abstract
Impact of tropospheric correction techniques on accuracy of the GPS (Global Positioning System) derived ellipsoidal heights has been experimentally assessed in this paper. To this end, 247 baselines were constructed from a total of 88 CORS (Continuously Operating Reference Stations) in Korea. The GPS measurements for seven days, acquired from the so-called integrated GNSS (Global Navigation Satellite Systems) data center via internet connection, have been processed by two baseline processing software packages with an application of the empirical models, such as Hopfield, modified Hopfield and Saastamoinen, and the estimation techniques based on the DD (Double-Differenced) measurements and the PPP (Precise Point Positioning) technique; hence a total number of the baseline processed and tested was 8,645. Accuracy and precision of the estimated heights from the various correction schemes were analyzed about baseline lengths and height differences of the testing baselines. Details of these results are summarized with a view to hopefully providing an overall guideline of a suitable selection of the modeling scheme with respect to processing conditions, such as the baseline length and the height differences.
Keywords
GPS-leveling; Tropospheric Error; Ellipsoidal Height; Baseline Processing; Accuracy;
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Times Cited By KSCI : 4  (Citation Analysis)
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1 Beutler, G., Bauersima, I., Gurtner, W., Rothacher, M., Schildknecht, T., and Geiger A. (1987), Atmospheric refraction and other important biases in GPS carrier phase observations, In: Brunner, F.K. (ed.), Atmospheric Effects on Geodetic Space Measurements, School of Surveying, University of New South Wales, Australia, pp. 15-43.
2 Hofmann-Wellenhof, B., Lichtenegger, H., and Collines, J. (2001), GPS Theory and Practice, Springer-Verlag Wien New York, Wien, Austria, 382p.
3 Hong, C. (2013), Impact of tropospheric delays on the GPS positioning with double-difference observables, Journal of Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, Vol. 31, No. 5, pp. 421-427. (in Korean with English abstract)   DOI
4 Hopfield, H.S. (1969), Two-quartic tropospheric refractivity profile for correcting satellite data, Journal of Geophysical Research, Vol. 74, No. 18, pp. 4487-4499.   DOI
5 Javad (2011), GIODIS Software Manual Version 2.2, Javad GNSS Inc., San Jose, California, USA, 99p.
6 Jung, S., Kwon, J., and Lee, J. (2018), Accuracy analysis of GNSS-derived orthometric heights on leveling loop disconnected area, Journal of Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, Vol. 36, No. 1, pp. 1-8.   DOI
7 Lee, S. and Auh, S. (2016), Accuracy analysis of GPS ellipsoidal height determination in accordance with the surveying conditions, Journal of the Korean Society for Geospatial Information Science, Vol. 23, No. 4, pp. 67-74. (in Korean with English abstract)
8 Lee, Y., Han, J., and Kwon, J. (2015), Accuracy improvement of real-time GNSS based hegihting using published orthometric height of unified control point, Proceedings of Annual Conference of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, 23-24 April, Changwon, Korea, pp. 345-346. (in Korean with English abstract)
9 Lee H., Wang, J., Rizos, C., and Tsujii, T. (2005), Augmenting GPS by ground-based pseudolite signals for airborne surveying applications, Survey Review, Vol. 38, No. 296, pp. 88-99.   DOI
10 Lee, J. and Kwon, J. (2015), Construction and precision verification of Korean national geoid model KNGeoid14, Proceedings of Annual Conference of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography, 23-24 April, Changwon, Korea, pp. 177-179. (in Korean with English abstract)
11 Leick, A., Rapoport, L., and Tatarnikov, D. (2015), GPS Satellite Surveying, John Wiley & Sons, Inc., New Jersey, USA, 807p.
12 Rothacher, M. (2002), Estimation of station heights with GPS, In: Drewes, H., Dodson, A., Fortes, L.P.S., Sanchez, L., Sandoval, P. (ed.), Vertical Reference Systems, Springer-Verlag Berlin Heidelberg, Germany, pp. 81-89.
13 Saastamoinen, J. (1973), Contribution to theory of atmospheric refraction, Bulletin Geodesique, Vol. 107, pp. 13-34.   DOI
14 Seeber, G. (2003), Satellite Geodesy, Walter de Gruyter GmbH & Co., Berlin, Germany, 589p.
15 Shin, G., Han, J., and Kwon, J. (2014), Accuracy analysis of orthometric heights based on GNSS static surveying, Journal of Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, Vol. 32, No. 5, pp. 527-537. (in Korean with English abstract)   DOI
16 Wang, M. and Li, B. (2016), Evaluation of empirical tropospheric models using satellite-tracking tropospheric wet delays with water vapor radiometer at Tongji, China, Sensors, Vol. 16, No. 2, pp. 186-201.   DOI
17 Waypoint (2017), GrafNav/GrafNet User Manual, NovAtel Inc., Calgary, Canada, 168p.