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Određivanje komponenti disperzija vremenski varijabilnih grešaka u GPS određivanju koordinata
Estimation of time-variable error variance components in GPS determination of coordinates
dc.contributor.advisor | Blagojević, Dragan | |
dc.contributor.other | Božić, Branko | |
dc.contributor.other | Jevremović, Vesna | |
dc.creator | Anđić, Darko | |
dc.date.accessioned | 2020-02-24T09:14:56Z | |
dc.date.accessioned | 2022-10-10T10:19:09Z | |
dc.date.available | 2020-02-24T09:14:56Z | |
dc.date.available | 2020-07-03T08:30:04Z | |
dc.date.available | 2022-10-10T10:19:09Z | |
dc.date.issued | 2019-10-14 | |
dc.identifier.uri | https://nardus.mpn.gov.rs/handle/123456789/11894 | |
dc.identifier.uri | http://eteze.bg.ac.rs/application/showtheses?thesesId=7236 | |
dc.identifier.uri | https://fedorabg.bg.ac.rs/fedora/get/o:20976/bdef:Content/download | |
dc.identifier.uri | http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID= | |
dc.identifier.uri | https://grafar.grf.bg.ac.rs/handle/123456789/2756 | |
dc.description.abstract | Korišćenjem potpuno novog pristupa u istraživanju rezidualnih uticaja na relativno GPSpozicioniranje, koji podrazumijeva primjenu dvofaktorske hijerarhijske klasifikacije saslučajnim efektima, bez interakcija, u integralnom sagledavanju tih uticaja zajedno sačisto slučajnim uticajima, korišćenjem jednog linearnog modela, dobijene su pouzdaneANOVA ocjene. Na osnovu istih, primjenom metode momenata, dobijene su definitivneocjene komponenti disperzija relativnih koordinata e, n i u. Za potrebe istraživanja,korišćeni su GPS podaci prikupljeni sa intervalom registracije od 30 s na krajnjimstanicama pet baznih linija različitih dužina (5.6, 13.6, 40, 129.5 i 281.9 km), u tokučetvorogodišnjeg perioda (2008-2011). Istraživanje je sprovedeno pojedinačno nadvremenskim serijama koja uključuju fiksna rješenja dobijena samo za period obdanice,period noći i cjelodnevni period. Pri razmatranju cjelodnevnog ponašanja rezidualnihuticaja, ispostavilo se da su srednje vrijednosti standarda zajedničkog uticaja rezidualatroposferske i jonosferske refrakcije, koje odgovaraju koordinatama e, n i u, redom,sljedeće: 0.1104, 0.0952 i 0.3709 mm/km. Što se tiče uticaja reziduala "far-field"višestruke refleksije, srednje vrijednosti standarda, podrazumijevajući isti redosljednavođenja, su: 4.1, 5.7 i 11.8 mm. Zajednički uticaj reziduala "near-field" višestrukerefleksije i reziduala ekscentriciteta i varijacija faznih centara antena prijemnika, poistom redosljedu prikaza, karakterišu sljedeće srednje vrijednosti standarda: 2.7, 4.1 i 12.1 mm. ANOVA ocjene imaju zanemarljiv stepen korelacije i, kao i standardirazmatranih komponentnih rezidualnih uticaja, posjeduju sezonski karakter, dostižućimaksimume u ljetnjim, a minimume u zimskim mjesecima. | sr |
dc.description.abstract | By using a fully new approach in researching residual effects on relative GPSpositioning, which implies applying of two-way nested classification with randomeffects, with no interactions, in an integral consideration of these effects along with purerandom effects, through using a linear model, reliable ANOVA estimates were obtained.Based on those estimates, applying the method of moments, definitive variancecomponents of relative coordinates e, n and u were obtained. For the research purpose,GPS data collected with the registration interval of 30 s, at the ending stations of fivebaselines with different lengths (5.6, 13.6, 40, 129.5 i 281.9 km), during the full fouryearperiod (2008-2011), were used. The research was conducted individualy by usingmonthly time series that included fixed solutions obtained only for daytime, nighttimeand whole-day period. In consideration of whole-day behaviour of the residual effects, itturned out that the mean standard deviations of the joint effect of tropospheric andionospheric residual, corresponding to the coordinates e, n and u, are, respectively, thefollowing: 0.1104, 0.0952 and 0.3709 mm/km. As for the "far-field" multipath residualeffect, the mean standard deviations, assuming the same order of presentation, are: 4.1,5.7 and 11.8 mm. The joint effect of the "near-field" multipath and receiver antennaphase center offsets and variations residuals, in the same order of view, arecharacterized by the following mean standard deviations: 2.7, 4.1 and 12.1 mm. TheANOVA estimates are with a negligible degree of correlation and, as well as standarddeviations of the considered component residual effects, have a sesonal pattern,reaching their maximums in the summer, and the minimums in the winter months. | en |
dc.format | application/pdf | |
dc.language | sr | |
dc.publisher | Универзитет у Београду, Грађевински факултет | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/35004/RS// | |
dc.rights | openAccess | en |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Универзитет у Београду | sr |
dc.subject | rezidualni uticaji u GPS pozicioniranju | sr |
dc.subject | residual effects in GPS positioning | en |
dc.subject | two-way nested classification | en |
dc.subject | integralapproach | en |
dc.subject | relative coordinate variance components estimation | en |
dc.subject | accuracy of relative GPSpositioning at the single-epoch level | en |
dc.subject | dvofaktorska hijerarhijskaklasifikacija | sr |
dc.subject | integralni pristup | sr |
dc.subject | ocjenjivanje komponenti disperzija relativnihkoordinata | sr |
dc.subject | preciznost relativnog GPS pozicioniranja na nivou pojedinačne epohe | sr |
dc.title | Određivanje komponenti disperzija vremenski varijabilnih grešaka u GPS određivanju koordinata | sr |
dc.title.alternative | Estimation of time-variable error variance components in GPS determination of coordinates | en |
dc.type | doctoralThesis | en |
dc.rights.license | BY-NC-ND | |
dc.identifier.fulltext | http://grafar.grf.bg.ac.rs/bitstream/id/10557/Disertacija.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_nardus_11894 |