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Troj-Variantné Spracovanie A Vyrovnanie Observácií A Určovaných Odhadov/ Three-Variant Processing and Adjustment of Observations and Determined Estimations

Authors
  • Labant, Slavomír
  • Weiss, Erik
  • Gašinec, Juraj
  • Zuzík, Jozef
  • Király, Alexander
Type
Published Article
Journal
GeoScience Engineering
Publisher
De Gruyter Open
Publication Date
Oct 01, 2014
Volume
60
Issue
3
Pages
46–56
Identifiers
DOI: 10.2478/gse-2014-0017
Source
De Gruyter
Keywords
License
Green

Abstract

The present article deals with three-variant processing and finding estimates of unknown parameters in a geodetic network by the technology of global navigation satellite systems in 2004, 2008 and 2011. The assessment of the impact of a used method of adjustment on the estimation of parameters of the first and second order of the geodetic network and the presentation of results of a deformation analysis with graphical visualisation of individual processing and analyses are the objectives of this paper. An LSM method and robust M-estimates according to Huber and Hampel were used for the processing and adjustment of observations. All three processing methods showed a displacement of point No. 5005 in the epoch 04-08 in the analysis of the stability of points, which is also confirmed by graphical visualisations using confidence error ellipsoids.

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