magistrsko delo
Karmen Šepetavc (Author), Tomaž Ambrožič (Mentor), Dušan Kogoj (Thesis defence commission member), Polona Pavlovčič Prešeren (Thesis defence commission member), Mojca Kosmatin Fras (Thesis defence commission member), Bojan Stopar (Co-mentor)

Abstract

Problem optimizacije geodetskih mrež se v geodetski znanosti obširneje proučuje zadnjih 40 let. Kljub obsežnim raziskavam in napredku na tem področju še vedno velja, da splošno veljavna in enolična rešitev problema optimizacije ne obstaja, kar potrjuje tudi cela množica postopkov, ki rešujejo problem optimizacije glede na posamezen kriterij ali skupino kriterijev. Ti postopki imajo, glede na izbrane kriterije, že v osnovi vključene določene omejitve, ki preprečujejo univerzalnost rešitve, kljub temu pa dajejo nekatere metode zanesljive in praktično uporabne rezultate. Na izbranih terestričnih mrežah, ki so v Sloveniji vzpostavljene za potrebe kontrolnih merjenj, bomo prikazali uporabo optimizacije drugega reda. Meritve v teh mrežah se izvajajo že daljše obdobje, izmere so se začele povprečno več kot 10 let nazaj. Od takrat pa do danes na nobeni od obravnavanih mrež ni bil izveden celovit postopek optimizacije, zato je namen tega dela, preveriti, ali so meritve, ki se izvajajo v okviru posamezne mreže, dejansko potrebne ter kolikšen vpliv imajo posamezne meritve na natančnost določitve koordinat točk. S tem bomo dobili optimalen plan meritev, ki bo izpolnjeval zahteve glede kriterijev natančnosti, ki ga bo mogoče realizirati z razpoložljivo mersko opremo ter cim nižjimi stroški.

Keywords

geodezija;magistrska dela;premiki in deformacij;obdelava geodetskih meritev;ocena natančnosti;kvaliteta geodetske mreže;iskanje sprememb, matrika kriterija,;optimizacija geodetske mreže;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [K. Šepetavc]
UDC: 528.235(043.2)
COBISS: 7521377 Link will open in a new window
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Downloads: 481
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Other data

Secondary language: English
Secondary title: Optimization of terrestrial geodetic networks designed for monitoring movements
Secondary abstract: The problem of optimization of geodetic networks has been extensively examined in geodetic science for the last 40 years. Despite extensive researches and progression at this field of study, it is still considered that general and unique solution of optimization does not exist, which is confirmed by countless procedures that solve the optimization problem depending on one or a group of criteria. These procedures, based on selected criteria, contain certain limitations, that prevent an universal solution, in spite of that, some methods provide reliable and practically useful results. In selected terrestrial networks in Slovenia, which are established for the purposes of control measurements, will be shown the use of the second order optimization. Measurements in these networks have been carrying out for longer period, they started average of more than 10 years ago. Until today, none of these treated networks had been completely optimized, therefore, the purpose of this work is to verify, if the measurements carried out in individual network, are actually needed and what impact the individual measurements have on the accuracy, when determinating the coordinates of points. This will give us an optimal plan of measurements, that will satisfy the requirements of the criteria of accuracy and could be realized with the available measuring equipment as well as lower costs.
Secondary keywords: geodesy;master of science thesis;displacements and deformations;processing of geodetic observation;estimation of accuracy;quality of geodetic network;criterion matrix;optimization of geodetic network;
File type: application/pdf
Type (COBISS): Master's thesis
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: XIII, 1 str., 6 pril.
ID: 9154846