Določitev premikov točk v geodetski mreži po metodi Fredericton

diplomska naloga

Anja Vrečko (Avtor), Tomaž Ambrožič (Mentor), Božo Koler (Član komisije za zagovor), Dušan Kogoj (Član komisije za zagovor), Aleš Marjetič (Komentor)

Povzetek

Ključne besede

geodezija;diplomska dela;UNI;deformacijska analiza;postopek Frederiction;deformacijski model;deformacijski parameter;iterativni postopek;dodeljevnje uteži;geodetski datum;mreža Pesje;

Podatki

Jezik:	Slovenski jezik
Leto izida:	2010
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[A. Vrečko]
UDK:	528.33(043.2)
COBISS:	5111649
Št. ogledov:	1753
Št. prenosov:	471
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Determination of displacement geodetic network points, Frederiction approach
Sekundarni povzetek:	This graduate thesis deals with the Fredericton approach for determining displacements in geodetic networks. In the introduction strain analysis is presented from a geodetic point of view. Special emphasis is placed on the problem of geodetic datum. It is followed by a theoretical explanation of the method in five steps: adjustment of observation for each epoch, preliminary identification of deformation models, estimation of deformation parameters, checking the deformation models and selecting the best one, graphical presentation of the selected deformation model. The method was applied to observations made in a relative geodetic network Pesje in two epochs. The network did not have defects of configuration but a datum defect was present from the use of the coordinate approach. The results differ slightly from the results obtained from the Delft, Hannover and Karlsruhe approaches and even more from the results obtained from the Munich approach. Compared to other methods, the Fredericton method is less automatic since it requires a human decision on the preliminary identification of deformation models. The advantage of this method is its general applicability, which can be achieved by adapting the method to specific situations within a geodetic network.
Sekundarne ključne besede:	graduation thesis;geodesy;deformation analysis;Frederiction method;deformation parameter;deformation model;Iterative Weighted Projection;geodetic datum;geodetic network Pesje;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univ. Ljubljana, Fak. za gradbeništvo in geodezijo
Strani:	X, 49 str., pril.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	Determination of Displacement Geodetic Network Points, Fredericton Approach
Ključne besede (ePrints):	deformacijska analiza;postopek Fredericton;deformacijski model;deformacijski parameter;iterativni postopek dodeljevanje uteži;geodetski datum;mreža Pesje
Ključne besede (ePrints, sekundarni jezik):	deformation analysis;Fredericton method;deformation parameter;deformation model;Iterative Weighted Projection;geodetic datum;geodetic network Pesje
Povzetek (ePrints):	Diplomska naloga obravnava postopek Fredericton, ki je eden od postopkov deformacijske analize za določitev premikov točk v geodetski mreži. V uvodu so predstavljeni specifični vidiki določevanja premikov v geodeziji. Pri tem je poseben poudarek na vplivu geodetskega datuma na vektorje premikov, ki jih dobimo iz razlik izravnanih koordinat v dveh terminskih izmerah. Sledi teoretična izpeljeva in opis postopka v petih korakih: izravnava terminskih izmer, identifikacija možnih deformacijskih modelov, določitev deformacijskih parametrov za izbrane deformacijske modele, statistična ocena deformacijski modelov in izbira najboljšega, grafična predstavitev izbranega deformacijskega modela. Postopek smo uporabili na konkretnem primeru, na podatkih iz mreže Pesje. Obdelana so bila opazovanja iz dveh terminskih izmeri. V mreži ni bilo defekta konfiguracije, prisoten pa je bil defekt datuma, saj je bil uporabljen koordinatni pristop. Rezultati so se nekoliko razlikovali od rezultatov postopkov Delft, Karlsruhe, Hannover, bolj pa od rezultatov postopka München. Postopek Fredericton je v primerjavi z drugim postopki manj avtomatičen, saj zahteva geodetovo odločitev o možnih deformacijskih modelih. Prednost postopka je, da ga je možno prilagoditi specifičnim situacijam (npr. defekt konfiguracije mreže) tako, da je splošno uporaben.
Povzetek (ePrints, sekundarni jezik):	This graduate thesis deals with the Fredericton approach for determining displacements in geodetic networks. In the introduction strain analysis is presented from a geodetic point of view. Special emphasis is placed on the problem of geodetic datum. It is followed by a theoretical explanation of the method in five steps: adjustment of observation for each epoch, preliminary identification of deformation models, estimation of deformation parameters, checking the deformation models and selecting the best one, graphical presentation of the selected deformation model. The method was applied to observations made in a relative geodetic network Pesje in two epochs. The network did not have defects of configuration but a datum defect was present from the use of the coordinate approach. The results differ slightly from the results obtained from the Delft, Hannover and Karlsruhe approaches and even more from the results obtained from the Munich approach. Compared to other methods, the Fredericton method is less automatic since it requires a human decision on the preliminary identification of deformation models. The advantage of this method is its general applicability, which can be achieved by adapting the method to specific situations within a geodetic network.
Ključne besede (ePrints, sekundarni jezik):	deformation analysis;Fredericton method;deformation parameter;deformation model;Iterative Weighted Projection;geodetic datum;geodetic network Pesje
ID:	8309811