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Vzpostavitev lastne stalne postaje GNSS in predstavitev rešitev za optimalno določitev položaja
Gregorič, Jaka (Author), Pavlovčič Prešeren, Polona (Mentor) More about this mentor... This link opens in a new window, Štebe, Gašper (Co-mentor)

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Abstract
Tehnologija GNSS v geodeziji omogoča hitro in enostavno določitev položajev točk homogene točnosti v globalnem koordinatnem sistemu. Pri določanju koordinat novih točk se večinoma poslužujemo RTK-metode izmere GNSS, saj nam omogoča takojšnjo določitev koordinat novih točk. Za realizacijo metode potrebujemo sprejemnik GNSS na referenčni postaji z znanimi koordinatami ali omrežje sprejemnikov, ki posreduje opazovanja z referenčne postaje premičnemu sprejemniku, da lahko le-ta določi koordinate novih točk v realnem času. Območje možnosti uporabe metode RTK je odvisno od pokritosti s signalom GSM oziroma od dometa radijskega prenosa podatkov, medtem ko je kakovost določitve položaja pogojena z razdaljo med sprejemnikoma na znani in novi točki. V primeru pokritosti območja z omrežjem stalnih postaj so lahko oddaljenosti od referenčne postaje večje kot v primeru uporabe samostojne postaje, saj omrežje omogoča dodatne mrežne koncepte določitve koordinat točk. V magistrski nalogi smo vzpostavili lastno stalno delujočo postajo GNSS s posredovanjem opazovanj po internetu z uporabo protokola NTRIP. Koordinate stalne postaje in štirih kontrolnih točk smo določili s statično metodo izmere GNSS z navezavo na državno omrežje postaj SIGNAL. Kakovost izmere RTK smo ovrednotili s primerjavo koordinat kontrolnih točk, ki smo jih določili najprej s statično metodo izmere in nadalje z različnimi izvedbami metode RTK. Pri teh smo za referenčno stojišče privzeli najprej lastno postajo GNSS in nato referenčno stojišče, ki ga nudi omrežje stalnih postaj SIGNAL. V nadaljevanju smo glede na odstopanja koordinat od referenčnih vrednosti določili optimalno območje uporabe lastne stalne postaje GNSS za kakovostno določitev koordinat novih točk.

Language:Slovenian
Keywords:GNSS, točnost, statična in RTK-metoda izmere, referenčna postaja, omrežje postaj, protokol NTRIP, omrežje SIGNAL
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2016
Publisher:[J. Gregorič]
Place:Ljubljana
UDC:528.2(497.4)(043)
COBISS.SI-ID:7503457 This link opens in a new window
Views:1412
Downloads:628
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Secondary language

Language:English
Title:Installation of a permanent GNSS station with a solution presentation for the optimum position determination
Abstract:
GNSS technology enables the geodesy to acquire high productivity and immediate results of the point positions of homogenous accuracy in the global coordinate system. RTK-GNSS is the dominant surveying method at the moment. For the realization of the method we need the GNSS receiver at a known point or a GNSS network that consists of a group of reference stations, that transmit observation data in order to ensure a high accuracy of determining the position of the rover. The geographical scope of service depends on the GSM signal coverage, while the quality of position determination is a matter of distance between the rover and the reference station. While using GNSS network, distances between the reference stations can be greater than when using an independent station, since the network allows us to model the impact on the observations. In the thesis we established our own GNSS reference station, which enables the transmission of observation data over the Internet using the NTRIP protocol. We carefully selected the permanent station and determined the four testing points through the static GNSS observation method, using the GNSS network SIGNAL as reference. By comparing the positions of control points provided through the RTK surveying method with a link to our own permanent GNSS station and the permanent network SIGNAL depending on the reference value, presented by the results of the static GNSS surveying, we determine the optimal scope of our own permanent GNSS station.

Keywords:GNSS, accuracy, static and RTK measurement method, reference station, NTRIP protocol, the SIGNAL network

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