Ograničenja funkcionalnosti sustava satelitske navigacije

undergraduate thesis

• Title (english): Functionality limitations of satellite navigation systems
• Author: Josip Josipović
• Mentor: Tomislav Kos (mentor)
• Committee member: Tomislav Kos (predsjednik povjerenstva)
• Committee member: Gordan Ježić (član povjerenstva)
• Committee member: Josip Vuković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2015-09-03, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Različiti uzroci pogrešaka smanjuju točnost pozicioniranja GNSS sustava. Pogreške uzrokovane prolaskom signala kroz atmosferu i pogreške nastale refleksijom signala imaju najveći utjecaj. Ovisno o zahtjevnosti korisnika, te je pogreške potrebno smanjiti u većoj ili manjoj mjeri. Za uspješno korištenje GNSS sustava potreban je kontakt prijemnika sa barem četiri satelita što često nije moguće u urbanim kanjonima. Cilj završnog rada je bio ispitati performanse pojedinih GNSS sustava u nepovoljnoj urbanoj sredini koristeći prijamnik U-Blox EVK-M8N te ih usporediti sa rezultatima iz simulatora Trimble Planning Software. Za potrebe simulacije je snimljena elevacijska maska zaklonjenosti nebeskog svoda. Istraživanja su provedena u blizini Fakulteta elektrotehnike i računarstva.

Abstract (english)

Various error sources decrease the positioning accuracy of GNSS systems. Errors caused by the signal traveling through the atmosphere and errors cause by the multipath effect make the biggest impact. Those errors need to be reduced, depending on the users needs. Four satellites must be in view of the receiver to obtain an accurate result, which is often not possible in urban canyons. The objective of this assignment was to analyze performances of GNSS systems in an unfavorable urban environment using the receiver U-Blox EVK-M8N and compare those result with the simulation from Trimble Planning Software. The obstruction diagram was made for the simulation purposes.

• Keywords: GNSS; pogreške pozicije; urbani kanjoni; elevacijska maska; U-Blox EVK-M8N; Trimble Planning Software
• Keywords (english): GNSS; positioning error; urban canyons; obstruction diagram; U-Blox EVK-M8N; Trimble Planning Software
• Language: croatian
• URN:NBN: urn:nbn:hr:168:311171
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 09:27:26