In single frequency precise point positioning (PPP), satellite's DCBs is one of the main factors impacting the positioning accuracy. In the consideration of BDS navigation system has not completed and the limited distribution of regional monitoring network, these adverse condition make it is hard to estimate the DCBs accuracy. So put forward using GPS rice data to estimate the DCB of BDS satellite by make a global ionosphere model using the observations of GPS and BDS. In this paper the strategy of estimate the DCB of BDS satellite is discussed in detail. Further analysis showed that the stability of BDS satellite's DCBs is about 0.15 ns at 1 month. In order to further validate the precision of DCB of BDS satellites from this strategy, used BDS single frequency observations to position with the correct of BDS satellite's DCB or without it. Compared with no DCBs correction, single-frequency user's positioning accuracy is improved from 47 % to 63 % by using DCBs correction from the algorithm.
Estimate DCB of BDS Satellites Based on the Observations of GPS/BDS
Abschätzung des 'differential code bias (DCB)' von BDS-Satelliten durch Beobachtung von GPS/BDS
2014
12 Seiten
Aufsatz (Konferenz)
Englisch
Algorithmus , China , Europäisches Förderprogramm , Fehlerkorrektur , Flussdiagramm , Galileo (Satellitennavigation) , Geoinformationssystem , Geowissenschaft , GPS (Global Positioning System) , GPS-Empfang , Ionosphäre , Ionosphärenschicht , Maßbeständigkeit , mathematisches Modell , Messgenauigkeit , Methodenvergleich , Navigationssystem , Positioniergenauigkeit , Positionsmessung , satellitengestützte Ortung , Standardabweichung , systematischer Fehler
Stopwatch Observations of Satellites
NTIS | 1968
Stopwatch Observations of Satellites
NTIS | 1968
Combined Space-Based Observations of Geostationary Satellites
British Library Conference Proceedings | 2016
|Microcomputer-based on-line state estimate with applications to satellites
Tema Archiv | 1979
|Stereoscopic observations from meteorological satellites
Elsevier | 1983
|