ISSN 2250 - 1959 (online) ISSN 2348 - 9367 (Print) New DOI : 10.32804/IRJMST



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COMPARATIVE STUDY OF ONLINE GPS POST PROCESSING SERVICES AND EFFECTS ON DGPS DATA PROCESSING

    4 Author(s):  MANAS KUMAR JHA , SAURABH SINGH , NISHA UPADHYAY , NISHANT KHARE

Vol -  7, Issue- 1 ,         Page(s) : 29 - 35  (2016 ) DOI : https://doi.org/10.32804/IRJMST

Abstract

Increasing dependency on Differential Global Positioning System (DGPS) survey for accurate surveying and mapping project is common across the globe. Whether someone require a point data or want to align the LiDAR scans or point cloud data the precise DGPS value is very much required. The precision in the accuracy of the DGPS value determines the overall accuracy of the project output. To achieve a considerable accuracy DGPS survey methodology and its post processing technique must be defined beforehand. DGPS data acquisition in RTK (Real time kinematic) and PPK (post processing kinematic) is common in survey projects. The objective of processing of DGPS data in both RTK mode and PPK mode is to transform the absolute positioning of a point (X, Y, Z) in a relative positioning with reference to the other point of a known coordinates in a similar reference system. This paper will discuss in details the comparison of DGPS processing output using the software based post processing where control points get validated using various online internet based GPS processing services.

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