Izračun konstante antene instrumenta JAVAD TRIUMPH-LS iz opazovanj GNSS : diplomska naloga

Kladnik, Domen (author), Pavlovčič Prešeren, Polona (mentor)

V diplomski nalogi opisujemo način, kako preveriti konstanto antene instrumenta JAVAD TRIUMPH-LS, če uporabljamo notranjo anteno instrumenta. Zanimalo nas je, ali je nastavek v velikosti 2,5 cm vključen v osnovno kalibracijo ali ne. To smo naredili tako, da smo na enem od stebrov na strehi fakultete FGG postavili instrument JAVAD TRIUMPH-LS, na drugih dveh stebrih pa instrumente drugih proizvajalcev. V nadaljnji obdelavi opazovanj statične izmere GNSS višine antene instrumenta JAVAD TRIUMPH-LS nismo upoštevali in s tem dobili odstopanja od referenčne vrednosti. Ugotovili smo, da v osnovno kalibracijo instrumenta nastavek ni vključen in da moramo višino antene meriti do oznak na instrumentu. Z RTK-metodo izmere smo dodatno preverili še kakovost inklinometra, ki ga ima vgrajen JAVAD TRIUMPH-LS pri različnih naklonih: 15°, 30°, 45°. Ugotovili smo, da je določanje položaja pri večjih nagibih problematično, saj že pri nagibu 15° dobimo odstopanja okoli 10 cm v posamezni komponenti določitve horizontalnega položaja. Zato pri uporabi instrumenta JAVAD TRIUMPH-LS za določitev položaja z RTK-metodo izmere velja pravilo, da je pri določitvi položajev točk z uporabo inklinometra potrebno biti pazljiv oziroma da v bolj zahtevnih nalogah uporabimo znane postopke horizontiranja s pomočjo libel.

• Language: Slovenian
• Keywords: geodezija, diplomska naloga, VSŠ, TUN, GNSS, JAVAD TRIUMPH-LS, statična metoda izmere, konstanta antene, RTK-metoda izmere, nagib instrumenta
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Place of publishing: Ljubljana
• Publisher: [D. Kladnik]
• Year: 2016
• Number of pages: XI, 25 str.
• PID: 20.500.12556/RUL-85222
• UDC: 520.8.07:528.51/.52(497.4)(043.2)
• COBISS.SI-ID: 7670881
• Publication date in RUL: 18.10.2016

Secondary language

• Language: English
• Title: JAVAD TRIUMPH-LS internal antenna s constant verification from GNSS observations

Abstract

Diploma thesis deals with the procedure of the internal JAVAD TRIUMPH-LS antenna's calibration verification. We wanted to check whether the 2,5 cm nozzle is included in the initial NGS antenna calibration. The verification procedure has been performed on the roof of the faculty's building, where the instruments were set on three pillars; we have used one JAVAD TRIUMPH-LS instrument, the rest of the instruments were from other manufactures. In the static observation processing antenna height from the instrument JAVAD TRIUMPHLS has not been taken into account in order to get a deviation from the reference value. We came to the conclusion that in the initial calibration of the instrument adapter is not included and that we need to measure the height of the antenna to the labels on the instrument. Further we have verified the quality of coordinates, gathered from RTK-positioning using JAVAD TRIUMPH-LS additional accessories based on inclinometer. While using RTKmethod we have acquired coordinates when the instrument was inclined to 15°, 30° and 45° angles. We have found such positioning might be problematic, since already by 15° we have obtained deviations about 10 cm in each horizontal component. Therefore, when using the instrument JAVAD TRIUMPH-LS to determine the RTK-positions the slope of the instrument from the vertical should not be above of 15° inclination or even better in order to achieve best quality positioning results using rectified labels is more appropriate.

• Keywords: geodesy, graduation thesis, GNSS, static observations, constant of antenna, RTK point positioning, instrument s inclination