Study of Single Network Adjustment Using QOCA Software in Korea

Authors: Seongchan Kang, Hongsik Yun, Hyukgil Kim, Minwoo Park

Abstract:

For this study, this researcher conducted a precision network adjustment with QOCA, the precision network adjustment software developed by Jet Propulsion Laboratory, to perform an integrated network adjustment on the Unified Control Points managed by the National Geographic Information Institute. Towards this end, 275 Unified Control Points observed in 2008 were selected before a network adjustment is performed on those 275 Unified Control Points. The RMSE on the discrepancies of coordinates as compared to the results of GLOBK was ±6.07mm along the N axis, ±2.68mm along the E axis and ±6.49mm along the U axis.

Keywords: Network adjustment, QOCA, unified control point.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1328086

References:

[1] Huang He (2009) Accuracy Analysis of Latest Satellite Gravity Field Model using Unified Control Point Survey Results, Korea Society of Civil Engineers.
[2] Dong. D. (1998) Estimating regional deformation from a combination of space and terrestrial geodetic data, journal of Geodesy.
[3] Jet Propulsion Laboratory (2010), Introduction to GIPSY Software, California Institute of Technology.