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Sensors 2015, 15(12), 30419-30428; doi:10.3390/s151229806

GNSS Positioning by CORS and EGM2008 in Jilin Province, China

1
College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China
2
Jinan Institute of Survey and Investigation, Jinan 250013, China
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 17 September 2015 / Revised: 13 November 2015 / Accepted: 30 November 2015 / Published: 4 December 2015
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [823 KB, uploaded 4 December 2015]   |  

Abstract

The Continuously Operating Reference Station (CORS) technique has been widely applied in land resource management, surveying, mapping, deformation monitoring, precise navigation, etc. This article analyzed the positioning method using EGM2008 and CORS of Jilin Province, China. The vertical transformation of EGM2008 from WGS84 to China’s CGCS2000 datum and the horizontal coordinate transformation from CGCS2000 to a triangulation coordinate system were discussed. The results indicated that a local geoid with respect to CGCS2000 can be transferred from EGM2008 with the same accuracy, and the geoid correction between CGCS2000 and WGS84 varied from 0.023 m to 0.111 m. The coordinate transformation method based on the curve surface approximation method indicated that the theoretical error was less than 0.09 m in the grid within 10° longitudinal and 5° latitudinal, and less than 0.3 m in large area and 0.1 m in small area in field validation. The method proposed in this article expanded the positioning result and its application for JLCORS and other CORS with local datum. View Full-Text
Keywords: continuously operating reference station; EGM2008; geoid; ellipsoid height; CGCS2000; coordinate transformation continuously operating reference station; EGM2008; geoid; ellipsoid height; CGCS2000; coordinate transformation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Wu, Q.; Kang, J.; Li, S.; Zhen, J.; Li, H. GNSS Positioning by CORS and EGM2008 in Jilin Province, China. Sensors 2015, 15, 30419-30428.

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