Analiza določitve višin z različnimi geodetskimi metodami

diplomsko delo visokošolskega študijskega programa

Nataša Božić (Author), Boštjan Kovačič (Mentor), Rok Kamnik (Co-mentor)

Abstract

Namen diplomskega dela je bil primerjati opremo in metode izmere za GNSS-meritve in ugotoviti natančnost rezultatov. V prvem delu smo predstavili zgodovinski pregled tahimetrov in GNSS-metod. V drugem delu smo opisali uporabljeno opremo in metode izmere. Podrobneje smo opisali statično metodo GNSS-izmere, katera velja za najbolj natančno izmed vseh naštetih metod, saj pridobimo koordinate točk z nekaj milimetrsko natančnostjo. V tretjem delu je opisana obdelava GNSS meritev in rezultati z analizo meritev. Meritve smo izvajali s sprejemnikom Topcon Hiper V in elektronskim tahimetrom Leica TS50. Dobljene rezultate smo obdelali v programu Microsoft Office Excel, v katerem smo narisali grafe. Iz grafov smo dobili podatke, iz katerih smo izračunali povprečno višino in standardno deviacijo meritve. Pričakovali smo, da so meritve elektronskega tahimetra bistveno natančnejše od GNSS meritev, zato smo meritve tahimetra vzeli kot refenčne. Tako smo lahko še izračunali za koliko se z GNSS meritvijo približamo referenčnim meritvam. Analiza je pokazala, da povprečno odstopanje vseh GNSS meritev od referenčne vrednosti znaša 5,1 mm. Standardna deviacija meritev s tahimetrom znaša 0,0042 mm, s Topcon Hiper V pa 0,3570 mm. Tukaj govorimo o zelo visoki natančnosti, je pa potrebno prej preveriti za katere namene se bo ta določena višina uporabila in jo tudi temu primerno zaokrožiti. Ugotovili smo, da bi se praviloma natančnost GNSS-meritev s Topcon Hiper V instrumentom izboljšala z daljšim časom izmere.

Keywords

geodezija;gradbeništvo;GNSS;tahimeter;višinomer;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Publisher:	[N. Božić]
UDC:	528.716.2(043.2)
COBISS:	20513302
Views:	1009
Downloads:	64
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	ANALYSIS OF DIFFERENT METHODS OF GEODETIC LEVELLING
Secondary abstract:	Purpose of this bachelor thesis is, comparing the equipment and measurement methods for GNSS-measurements, and to find out the accuracy of results. In first part we introduced the historical overview of total stations and GNSS-methods. In second part, we described the method we used and measurement methods. We described in details the statical method of GNSS-measurement, which is subject of the most precise measurement methods of all mentioned, because we can get coordinates with millimetre accuracy. In third part we described the processing of GNSS-measurements and results with measurements analysis. We performed these measurements with Topcon Hiper V receiver and Leica TS50 electronic total station. The result we got, were processed in Microsoft Office Excel programme, which we used for drawing charts. With help of these charts, we got specifical data, with which we calculated average height and standard deviaton. We expected, that the measurements of electronical total station will be significally more accurate in comparison with GNSS measurements, that is why we took the measurements from total station as a reference. Then we calculated for how much measurements with GNSS measurements are approaching to reference measurements. Analysis showed, that the average deviation all of GNSS measurements from reference measurements is 5,1 millimetres. Standard deviation of measurements with total station is 0,0042 mm, and with Topcon Hiper V – 0,3570 millimetres. Here we can point out the high accuracy, but first it is important to check, for which purposes these particular heights will be used, and then round it according to this fact. We found out, that the accuracy of GNSS measurements with Topcon Hiper V instrument can improve with a longer measurement time dimensions.
Secondary keywords:	geodesy;civil engineering;accuracy;total station;GPS-leveling;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za gradbeništvo, prometno inženirstvo in arhitekturo
Pages:	VII, 43 f.
ID:	9161803