prikaz prve stranice dokumenta Točnost pozicioniranja pomoću niskobudžetnih GPS prijamnika s diferencijskim korekcijama i bez njih
No public access
doctoral thesis
Točnost pozicioniranja pomoću niskobudžetnih GPS prijamnika s diferencijskim korekcijama i bez njih
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2008. urn:nbn:hr:168:866972
Marjanović, Tihomir
University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Electronic Systems and Information Processing

Institutional repository: FER Repository

Cite this document

Marjanović, T. (2008). Točnost pozicioniranja pomoću niskobudžetnih GPS prijamnika s diferencijskim korekcijama i bez njih (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:866972

Marjanović, Tihomir. "Točnost pozicioniranja pomoću niskobudžetnih GPS prijamnika s diferencijskim korekcijama i bez njih." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2008. https://urn.nsk.hr/urn:nbn:hr:168:866972

Marjanović, Tihomir. "Točnost pozicioniranja pomoću niskobudžetnih GPS prijamnika s diferencijskim korekcijama i bez njih." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2008. https://urn.nsk.hr/urn:nbn:hr:168:866972

Marjanović, T. (2008). 'Točnost pozicioniranja pomoću niskobudžetnih GPS prijamnika s diferencijskim korekcijama i bez njih', Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 29 December 2024, https://urn.nsk.hr/urn:nbn:hr:168:866972

Marjanović T. Točnost pozicioniranja pomoću niskobudžetnih GPS prijamnika s diferencijskim korekcijama i bez njih [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2008 [cited 2024 December 29] Available at: https://urn.nsk.hr/urn:nbn:hr:168:866972

T. Marjanović, "Točnost pozicioniranja pomoću niskobudžetnih GPS prijamnika s diferencijskim korekcijama i bez njih", Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2008. Available at: https://urn.nsk.hr/urn:nbn:hr:168:866972

Metadata
TitleTočnost pozicioniranja pomoću niskobudžetnih GPS prijamnika s diferencijskim korekcijama i bez njih
Title (english)Accuracy of low-cost GPS receivers with and without differential corrections
AuthorTihomir Marjanović
MentorZoran Stare (mentor)
Committee memberVedran Bilas (predsjednik povjerenstva)
Committee memberZoran Stare (član povjerenstva)
Committee memberIgor Zorić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Electronic Systems and Information Processing)
Zagreb
Defense date and country2008-12-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
U radu je dan pregled današnjih sustava satelitske navigacije. Izneseno je trenutno stanje GPS sustava i planovi njegova razvoja. Izdvojene su posebnosti vezane uz GPS, a koje se odnose na teritorij Republike Hrvatske. Detaljno je opisana interna građa i princip rada niskobudžetnog softverskog GPS prijamnika počevši od njegove antene, sklopovlja za prilagodbu i uzorkovanje RF signala, sve do postupaka akvizicije i praćenja digitaliziranog signala te uporabe navigacijskih podataka i izračuna krajnjeg položaja. Rad softverskog GPS prijamnika simuliran je u MATLAB-u te su promotrena interna stanja pojedinih dijelova prijamnika uz realan ulazni signal. Razmotreni su danas korišteni principi poboljšanja sustava u smislu točnosti i proširenja usluge. Razvijena je sklopovska i programska podrška potrebna za terensko vrednovanje Lassen LP i Lassen iQ GPS modula proizvođača Trimble i GM862-GPS modula proizvođača Telit. Ispitan je utjecaj postavki prijamnika na njegovu točnost. Uspoređene su točnosti pojedinih prijamnika u različitim uvjetima rada: stacionarno mjerenje uz dobar prijem signala, stacionarno mjerenje u urbanoj sredini, gradska vožnja i vožnja otvorenom cestom. Ispitan je utjecaj komercijalnih diferencijskih korekcija i diferencijskog mjerenja pomoću para nekorigiranih prijamnika za svaki od spomenutih uvjeta rada. Razmotren je utjecaj izmjene konstelacije. Uočena je sporo promjenjiva komponenta pogreške položaja i ispitana mogućnost njenog usrednjavanja.
Abstract (english)
This thesis presents an overview of the Global Navigation Satellite Systems (GNSS). Current GPS state and modernization plans were given. Specificity of the GPS on Croatian territory was described. Internal architecture and operating principles of a low-cost software-based GPS receiver was elaborated in detail, with the emphasis on a GPS antenna, an RF front-end, signal acquisition and tracking, navigation data and position solution. A software-based GPS receiver was simulated in MATLAB. Receiver subsystems were evaluated using real-world signals. An overview of the current operating principles of GPS augmentation was given. A hardware and software platforms were developed for the evaluation of Trimble Lassen LP and Lassen iQ GPS modules and Telit GM862-GPS modules. Influence of receiver parameters on position accuracy was evaluated. Position accuracy of used receivers was compared in various environments: statitionary and moving measurement with the clear view to the sky and in the urban environment with the obscured sky view. Influence of commercial differential corrections and differential measurement using a pair of uncorrected receivers was evaluated. Influence of the constellation-switch on a measured position was demonstrated. Slow-changing mean position drift was illustrated and an averaging time considered.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:866972
ProjectNumber: 036-0362979-1554
Title: Neinvazivna mjerenja i postupci u biomedicini
Leader: Stanko Tonković
Jurisdiction: Croatia
Funder: MZOS
Funding stream: ZP
Study programmeTitle: Doctoral study programme "Electrical Engineering and Computing"
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, po-dručje tehničkih znanosti (doktor/doktorica znanosti, po-dručje tehničkih znanosti)
Catalog URLhttp://lib.fer.hr/cgi-bin/koha/opac-detail.pl?biblionumber=33346
Type of resourceText
Extent102 str.
File originBorn digital
Access conditionsClosed access
Terms of useLicence In copyright icon
Created on2020-03-24 12:03:35