Integration of a regional GPS network within ITRF using precise point positioning


Autoria(s): Monico, JFG; Perez, JAS; Adam, J.; Schwarz, K. P.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/01/2002

Resumo

GPS precise point positioning (PPP) can provide high precision 3-D coordinates. Combined pseudorange and carrier phase observables, precise ephemeris and satellite clock corrections, together with data from dual frequency receivers, are the key factors for providing such levels of precision (few centimeters). In general, results obtained from PPP are referenced to an arbitrary reference frame, realized from a previous free network adjustment, in which satellite state vectors, station coordinates and other biases are estimated together. In order to obtain consistent results, the coordinates have to be transformed to the relevant reference frame and the appropriate daily transformation parameters must be available. Furthermore, the coordinates have to be mapped to a chosen reference epoch. If a velocity field is not available, an appropriated model, such as NNR-NUVEL-IA, has to be used. The quality of the results provided by this approach was evaluated using data from the Brazilian Network for Continuous Monitoring of the Global Positioning System (RBMC), which was processed using GIPSY-OASIS 11 software. The results obtained were compared to SIRGAS 1995.4 and ITRF2000, and reached precision better than 2cm. A description of the fundamentals of the PPP approach and its application in the integration of regional GPS networks with ITRF is the main purpose of this paper.

Formato

66-71

Identificador

http://dx.doi.org/10.1007/978-3-662-04709-5_12

Vistas For Geodesy In the New Millennium. Berlin: Springer-verlag Berlin, v. 125, p. 66-71, 2002.

0939-9585

http://hdl.handle.net/11449/6638

10.1007/978-3-662-04709-5_12

WOS:000178709100012

Idioma(s)

eng

Publicador

Springer

Relação

Vistas For Geodesy In the New Millennium

Direitos

closedAccess

Palavras-Chave #GPS network integration #precise point positioning #ITRF and repeatability
Tipo

info:eu-repo/semantics/conferencePaper