Izmera GNSS na območju motenj signalov v okolici vremenskega radarja na Pasji ravni : diplomsko delo

Pezdirec, Katja (avtor), Pavlovčič Prešeren, Polona (mentor), Ritlop, Klemen (komentor)

Diplomsko delo obravnava kakovost določitve položaja z metodo GNSS-RTK na območju potencialnih motenj signalov v okolici vremenskega radarja na Pasji ravni. Raziskovalni problem se nanaša na vpliv števila uporabljenih sistemov GNSS, mrežnih konceptov VRS in MAC, referenčnih omrežij SIGNAL in SmartNet Slovenija ter morebitnih elektromagnetnih motenj na stabilnost in kakovost določitve koordinat. Namen dela je bil ovrednotiti zanesljivost RTK-pozicioniranja v zahtevnejšem elektromagnetnem okolju ter primerjati rezultate različnih nastavitev sprejemnikov in omrežij. Terenske meritve so bile izvedene z geodetskima sprejemnikoma Leica GS15 in Leica GS18 T v okolici vremenskega radarja na Pasji ravni. Sprejemniki so približno tri ure neprekinjeno izvajali GNSS-opazovanja in določali položaje z metodo RTK. Pridobljene podatke smo statistično obdelali z izračunom srednjih vrednosti koordinat, odstopanj in standardnih odklonov. Rezultati so pokazali, da uporaba vseh štirih sistemov GNSS (GPS, GLONASS, Galileo in BeiDou) prispeva predvsem k večji stabilnosti in zanesljivosti RTK-rešitev. Med mrežnima konceptoma VRS in MAC ter med omrežjema SIGNAL in SmartNet Slovenija nismo ugotovili razlik v kakovosti določitve položaja. Zaznali smo le posamezne kratkotrajne anomalije, ki pa niso pomembno vplivale na splošno oceno kakovosti meritev. Prav tako ni bilo mogoče potrditi pomembnega vpliva elektromagnetnih motenj zaradi bližine vremenskega radarja na stabilnost RTK-rešitev. Na podlagi raziskave lahko sklenemo, da GNSS-RTK v obeh obravnavanih omrežjih zagotavlja zanesljivo centimetrsko natančnost določanja položaja. Za nadaljnje raziskave bi priporočali izvedbo podobnega poskusa z vključitvijo več sprejemnikov različnih proizvajalcev ter izvedbo meritev v drugih elektromagnetno obremenjenih okoljih.

• Jezik: Slovenski jezik
• Ključne besede: diplomske naloge, GNSS, RTK, vremenski radar Pasja ravan, elektromagnetne motnje, omrežje, SIGNAL, omrežje SmartNet Slovenija, določitev položaja
• Vrsta gradiva: Diplomsko delo/naloga
• Tipologija: 2.11 - Diplomsko delo
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Kraj izida: Ljubljana
• Založnik: [K. Pezdirec]
• Leto izida: 2026
• Št. strani: 1 spletni vir (1 datoteka PDF (VIII, 27 str.))
• PID: 20.500.12556/RUL-187118
• UDK: 528.2(497.4)(043.2)
• COBISS.SI-ID: 290760451
• Datum objave v RUL: 09.09.2026

Sekundarni jezik

• Jezik: Angleški jezik
• Naslov: GNSS surveying under signal interference conditions near the Pasja ravan weather radar

Izvleček

The thesis examines the quality of positioning using the GNSS RTK method in an area with potential signal disturbances in the vicinity of the weather radar at Pasja ravan. The research problem concerns the influence of the number of GNSS constellations used, the VRS and MAC network concepts, the reference networks SIGNAL and SmartNet Slovenia, and possible electromagnetic interference on the stability and quality of coordinate determination. The aim of the study was to evaluate the reliability of RTK positioning in a more demanding electromagnetic environment and to compare the results obtained with different receiver, and network configurations. Field measurements were carried out using the geodetic receivers Leica GS15 and Leica GS18 T in the surroundings of the weather radar at Pasja ravan. The receivers continuously performed GNSS observations and determined positions using the RTK method for approximately three hours. The collected data-sets were statistically processed by calculating mean coordinate values, deviations, and standard deviations. The results showed that the use of all four GNSS systems (GPS, GLONASS, Galileo, and BeiDou) primarily contributes to greater stability and reliability of RTK solutions. No significant differences in positioning quality were identified between the VRS and MAC network concepts or between the SIGNAL and SmartNet Slovenia reference networks. Several short-term anomalies were detected, but they did not have a meaningful impact on the overall assessment of measurement quality. Likewise, it was not possible to confirm any significant influence of electromagnetic interference caused by the proximity of the weather radar on the stability of RTK solutions. Based on the research, it can be concluded that GNSS RTK provides reliable centimetre-level positioning accuracy in both investigated networks. For further studies, we recommend conducting a similar experiment using a larger number of receivers from different manufacturers and carrying out measurements in other electromagnetically challenging environments.

• Ključne besede: graduation thesis, GNSS, RTK, Pasja ravan weather radar, electromagnetic interference, SIGNAL network, SmartNet Slovenija network, position determination