Temporal correlation length of network based rtk techniques

Basit Öğe Kaydı
dc.contributor.authorOgutcu, Sermet
dc.date.accessioned2024-02-23T14:13:10Z
dc.date.available2024-02-23T14:13:10Z
dc.date.issued2019
dc.departmentNEÜen_US
dc.description.abstractTemporal correlation in network based Real-Time Kinematic (NRTK) data exists due to the unmodeled multipath, tropospheric (especially for wet delay) and ionospheric variations, and slowly changing spatial geometry of satellites. Ignoring the temporal correlation can result in too much confidence being placed in the estimated uncertainty of the coordinates. Temporally correlated errors occur when the magnitude of an error is constant or similar over time. In this study, temporal correlation lengths of commonly used Virtual Reference Station (VRS), Flachen Korrektur Parameter (FKP) and Master Auxiliary Concept (MAC) NRTK techniques were computed for the different length of baselines between the rover and the master station (closest CORS station) in the Turkish GNSS active network (TUSAGA-Aktif). Thus, appropriate time separation between the measurements for revisits of the points was determined in order to avoid overly optimistic coordinate uncertainty and unreliable coordinate checking. The results show that there is no clear relationship between the correlation length and the baseline distance. Correlation lengths of FKP and VRS are similar, whereas MAC produced a much longer correlation time for the horizontal component. When the correlation length of each technique is averaged, the correlation lengths are estimated as 17-13-16 min for northing, easting projection coordinates and ellipsoidal height, respectively. According to the measurements using different geodetic-grade receivers, the results show that temporal correlation length varies between the receivers. (C) 2018 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.measurement.2018.10.099
dc.identifier.endpage547en_US
dc.identifier.issn0263-2241
dc.identifier.issn1873-412X
dc.identifier.scopus2-s2.0-85056158692en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage539en_US
dc.identifier.urihttps://doi.org/10.1016/j.measurement.2018.10.099
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12335
dc.identifier.volume134en_US
dc.identifier.wosWOS:000468223900049en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofMeasurementen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCorrelation Lengthen_US
dc.subjectFkpen_US
dc.subjectGnssen_US
dc.subjectMacen_US
dc.subjectNrtken_US
dc.subjectVrsen_US
dc.titleTemporal correlation length of network based rtk techniquesen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu