Deformacijska analiza po postopku fredericton ; Deformation analysis: the fredericton approach

• Main Authors: Anja Vrečko, Tomaž Ambrožič
• Format: Article
• Language: English
• Published: Association of Surveyors of Slovenia (Zveza geodetov Slovenije) 2013-01-01
• Series: Geodetski Vestnik
• Subjects: deformation analysis; Fredericton approach; numerical example; deformacijska analiza; postopek Fredericton; računski primer
• Online Access: http://geodetski-vestnik.com/cms/images/57/3/gv57-3_vrecko.pdf
• ISSN: 0351-0271; 1581-1328

V članku je opisan postopek Fredericton, ki je eden izmed postopkov deformacijske analize. Za opis razlik med geodetskimi opazovanji ali koordinatami točk v geodetski mreži v več terminskih izmerah predpostavimo več mogočih deformacijskih modelov. Na podlagi statističnih testov in razpoložljivih informacij o dogajanju na obravnavanem območju izberemo najboljši deformacijski model. V članku je najprej podano teoretično ozadje postopka, nato je postopek uporabljen na primeru generiranih opazovanj v dveh terminskih izmerah. Rezultati postopka Fredericton na obravnavanem primeru niso bistveno odstopali od rezultatov postopkov Delft, Karlsruhe in Hannover ; In this article, the Fredericton approach to deformation analysis is presented. It is possible to use several deformation models to determine the differences between the geodetic observations or between the coordinates of points in geodetic network in more epochs. The most appropriate deformation model has been chosen based on statistical testing and available information about dynamics at the area of interest. First, a theoretical background of the approach is described. Then it is applied to the generated observations in two epochs. In the present example, the results of the Fredericton approach differ only slightly from the results obtained with the Delft, Karlsruhe in Hannover approaches.