diplomska naloga
Povzetek
V nalogi smo preverili kakovost določitve položajev točk v koordinatnem sistemu ETRS89 z
različnimi dolžinami trajanja opazovanj pri RTK-metodi izmere GNSS. Dolžine so se nanašale na
interval od 5 sekund pa vse do 5 minut po kakovostno izvedeni inicializaciji. Postopek ugotavljanja
razlik je potekal podobno, kot poteka preizkus RTK-instrumentov po standardu ISO17123-8. Na
delovišču v bližini Trbovelj smo vzpostavili mrežo treh točk, katerih položaje smo najprej določili s
statično izmero GNSS z naknadno obdelavo opazovanj. Podatke opazovanj GNSS statične metode
izmere smo obdelali na več načinov z navezavo na različne stalne postaje državnega omrežja
SIGNAL: Trebnje, Celje, Ljubljano ter z navezavo na virtualno referenčno stojišče VRS. Pri tem smo
ugotavljali, kolikšen je najkrajši časovni interval izvedbe opazovanj za kakovostno določitev položaja
s statično metodo izmere. Nadalje smo položaje istih točk določili z RTK-metodo izmere ob uporabi
instrumenta Leica 900. Položaje smo določili večkrat z neodvisnimi inicializacijami in z različnimi
dolžinami trajanja opazovanj po inicializaciji. Ugotovili smo, da v primeru uporabe instrumenta Leica
900 pri RTK-določitvi položaja ni bistvenih razlik, če izvajamo nadaljnje meritve na detajlnih točkah
krajši ali daljši čas po izvedeni inicializaciji.
Ključne besede
geodezija;diplomska naloga;UNI;GIG;koordinatni sistem ETRS89;RTK-metoda izmere;statična metoda izmere;SIGNAL;VRS;instrument Leica 900;
Podatki
Jezik: |
Slovenski jezik |
Leto izida: |
2015 |
Tipologija: |
2.11 - Diplomsko delo |
Organizacija: |
UL FGG - Fakulteta za gradbeništvo in geodezijo |
Založnik: |
[A. Škrabar] |
UDK: |
528.7:528.2(497.4)(043.2) |
COBISS: |
7169377
|
Št. ogledov: |
2076 |
Št. prenosov: |
498 |
Ocena: |
0 (0 glasov) |
Metapodatki: |
|
Ostali podatki
Sekundarni jezik: |
Angleški jezik |
Sekundarni naslov: |
Determination of position quality by RTK-GNSS method using different occupation durations |
Sekundarni povzetek: |
In this graduation thesis we have checked the quality of RTK-point positioning in the coordinate
system ETRS89 with various occupation durations. The occupation durations were related to the
interval from 5 seconds and up to 5 minutes after the successful initialization. The process of
identifying differences has been performed similar to the methodology of RTK-instrument testing
according to the standard ISO17123-8. First we have established a three-point network at the area of
Trbovlje and further performed static GNSS measurements. By several different post-processing
strategies we have acquired coordinates that were used as the reference for further studies. We have
used observations from three permanent stations of the national continuously operating reference
station network SIGNAL, i.e. Trebnje, Celje, Ljubljana and finally also VRS station to acquire final
coordinates from post-processing. Meanwhile we have tried to find out the minimal occupation
duration for quality baseline determination from fast-static measurements. Positions of the three points
were determined using Leica 900 instrument for RTK-method performance. Positions were
determined by several independent initializations and by different occupation durations. We have
found that in the case of the instrument Leica 900 there are no significant differences between
positions of detail points, acquired from different occupation durations after the initialization. |
Sekundarne ključne besede: |
coordinate system ETRS89;RTK point positioning;GNSS;static point positioning;SIGNAL;VRS;instrument Leica 900; |
Vrsta datoteke: |
application/pdf |
Vrsta dela (COBISS): |
Diplomsko delo/naloga |
Komentar na gradivo: |
Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo |
Strani: |
XIII, 26 str. |
ID: |
9055962 |