Določitev primernega geodetskega datuma z uporabo robustnih statističnih metod ( = Definition of appropriate geodetic datum using robust statistical methods)
The correct determination of geodetic datum is an obligatory condition for the proper determination of the point displacements. There are various methods of deformation analysis focused on the right identification of stable points, which may define an appropriate coordinate basi...
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| Format: | Article |
| Language: | English |
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Association of Surveyors of Slovenia (Zveza geodetov Slovenije)
2016-06-01
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| Series: | Geodetski Vestnik |
| Subjects: | |
| Online Access: | http://www.geodetski-vestnik.com/60/2/gv60-2_marjetic.pdf |
| _version_ | 1818542729381019648 |
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| author | Aleš Marjetič Klemen Kregar |
| author_facet | Aleš Marjetič Klemen Kregar |
| author_sort | Aleš Marjetič |
| collection | DOAJ |
| description | The correct determination of geodetic datum is an obligatory condition for the proper determination of the point displacements. There are various methods of deformation analysis focused on the right identification of stable points, which may define an appropriate coordinate basis for calculating the displacements of other points. These methods are largely based on the statistical testing and represent a comprehensive and complex analysis of change of geometry of geodetic network and allow definition of statistically significant displacements. Knowing the characteristics of the transformation between the solutions of displacements that are based on different definitions of geodetic datums, the problem of defining an appropriate geodetic datum can be solved in a slightly different way.In this article we have focused on the problem of determining the appropriate weighting matrix E in the model of S-transformation. We used the generally known methods of robust statistics. The robustness of the three selected methods were tested on two different situations of preselected displacements in the considered geodetic network and the results on selected case of geodetic network with results of conventional methods of deformation analysis were compared. |
| first_indexed | 2024-12-11T22:25:57Z |
| format | Article |
| id | doaj.art-517e47b86c1148ed930b2619ba9e57e5 |
| institution | Directory Open Access Journal |
| issn | 0351-0271 1581-1328 |
| language | English |
| last_indexed | 2024-12-11T22:25:57Z |
| publishDate | 2016-06-01 |
| publisher | Association of Surveyors of Slovenia (Zveza geodetov Slovenije) |
| record_format | Article |
| series | Geodetski Vestnik |
| spelling | doaj.art-517e47b86c1148ed930b2619ba9e57e52022-12-22T00:48:17ZengAssociation of Surveyors of Slovenia (Zveza geodetov Slovenije)Geodetski Vestnik0351-02711581-13282016-06-0160221222610.15292/geodetski-vestnik.2016.02.212-226Določitev primernega geodetskega datuma z uporabo robustnih statističnih metod ( = Definition of appropriate geodetic datum using robust statistical methods)Aleš Marjetič0Klemen Kregar1University of Ljubljana, Faculty of Civil and Geodetic Engineering, Jamova cesta 2, SI-1000 Ljubljana, SloveniaUniversity of Ljubljana, Faculty of Civil and Geodetic Engineering, Jamova cesta 2, SI-1000 Ljubljana, SloveniaThe correct determination of geodetic datum is an obligatory condition for the proper determination of the point displacements. There are various methods of deformation analysis focused on the right identification of stable points, which may define an appropriate coordinate basis for calculating the displacements of other points. These methods are largely based on the statistical testing and represent a comprehensive and complex analysis of change of geometry of geodetic network and allow definition of statistically significant displacements. Knowing the characteristics of the transformation between the solutions of displacements that are based on different definitions of geodetic datums, the problem of defining an appropriate geodetic datum can be solved in a slightly different way.In this article we have focused on the problem of determining the appropriate weighting matrix E in the model of S-transformation. We used the generally known methods of robust statistics. The robustness of the three selected methods were tested on two different situations of preselected displacements in the considered geodetic network and the results on selected case of geodetic network with results of conventional methods of deformation analysis were compared.http://www.geodetski-vestnik.com/60/2/gv60-2_marjetic.pdfgeodetic datumS transformationrobust statisticsdisplacementinfluence functionIWP – iterative weighted projection |
| spellingShingle | Aleš Marjetič Klemen Kregar Določitev primernega geodetskega datuma z uporabo robustnih statističnih metod ( = Definition of appropriate geodetic datum using robust statistical methods) Geodetski Vestnik geodetic datum S transformation robust statistics displacement influence function IWP – iterative weighted projection |
| title | Določitev primernega geodetskega datuma z uporabo robustnih statističnih metod ( = Definition of appropriate geodetic datum using robust statistical methods) |
| title_full | Določitev primernega geodetskega datuma z uporabo robustnih statističnih metod ( = Definition of appropriate geodetic datum using robust statistical methods) |
| title_fullStr | Določitev primernega geodetskega datuma z uporabo robustnih statističnih metod ( = Definition of appropriate geodetic datum using robust statistical methods) |
| title_full_unstemmed | Določitev primernega geodetskega datuma z uporabo robustnih statističnih metod ( = Definition of appropriate geodetic datum using robust statistical methods) |
| title_short | Določitev primernega geodetskega datuma z uporabo robustnih statističnih metod ( = Definition of appropriate geodetic datum using robust statistical methods) |
| title_sort | dolocitev primernega geodetskega datuma z uporabo robustnih statisticnih metod definition of appropriate geodetic datum using robust statistical methods |
| topic | geodetic datum S transformation robust statistics displacement influence function IWP – iterative weighted projection |
| url | http://www.geodetski-vestnik.com/60/2/gv60-2_marjetic.pdf |
| work_keys_str_mv | AT alesmarjetic dolocitevprimernegageodetskegadatumazuporaborobustnihstatisticnihmetoddefinitionofappropriategeodeticdatumusingrobuststatisticalmethods AT klemenkregar dolocitevprimernegageodetskegadatumazuporaborobustnihstatisticnihmetoddefinitionofappropriategeodeticdatumusingrobuststatisticalmethods |