Accuracy and precision VS software and different conditions using Italian GPS fiducial network (IGFN) data

• Autorzy: Gandolfi S. , Gusella L. , Perfetti N. , Dubbini M.
• Konferencja: 7th Bilateral Geodetic Meeting Italy-Poland (7;22-24.05.2003; Bressanone, Italy)
• Języki publikacji: EN

Abstrakty

EN

... THE TREATMENT OF TIME SERIE S DATA OF GPS PERMANENT STATIONS FOR EXTRACTING GEODETIC SIGNALS F.Vespe(l), P. Rutigliano(2) , R. Pacione(2) (I) Agenzia Spaziale !taliana , Centro di Geodesia Spaziale "G. Colombo". 75100 - Matera, Italy (2'relespazio S.pA Centro di Geodesia Spaziale "G. Colombo" - 75100 Matera, Italy Abstract It is wen known that the coordinates and the zenith total delays, estimated by the GPS, provide a big amount of information. Currentły a lot of stations with a very long data time series are present all over the world which malee now feasible to perform a critical analysis of the coordinates helpful for the detection of signals, such as: height displacements, velocities and strain rate suitable for geophysical interpretations. In the present work a method to assess the reliability of the time series is described and applied to some stations with a period of observations long 5 years at least. The method essentially build a "fingerprint" which give information how long time a signal can emerge ITom the time series. Furthermore with the method, harmonic signatures and jumps on the time series are detected and analysed. The method does not only detects the value of the jumps but also where they are placed along the time series. The good efficiency in the detection and evaluation of jumps is of utmost importance because they introduce spurious signatures which could dramatically delay the enhancement of the signals. So our method allows to detect jumps that could be neglected or not assessed or be themselves a signal to detect.

Słowa kluczowe

EN

GPS system; measurements

PL

GPS system; pomiary

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2003
• Tom: z. 2/65
• Strony: 65--71
• Opis fizyczny: Bibliogr. 5 poz., tab., schem.

Twórcy

autor

Gandolfi S.

• DISTART University of Bologna Italy

autor

Gusella L.

• DISTART University of Bologna Italy

autor

Perfetti N.

• Departament of Engeering, University of Ferrara, Italy

autor

Dubbini M.

• DISTART University of Bologna Italy

Bibliografia

• [1] Beutler G., et al, 2000, Bernese GPS Software v.4.2 Astronomical Institute University of Berne
• [2] Boucher C., Altamimi Z., Duhem L. 1993, "ITRF and its Associated Velocity Field", IERS Technical Note 15, Central Bureau of the International Earth Rotation Service (IERS), October 1993.
• [3] Jet Propulsion Lab., 2003, GIPSY - OASIS II On Line Training Course, https://gipsyoasis.jpl.nasa.gov
• [4] Manning J. & Steed J., 2001, POSITIONAL Accuracy, a spatial data foundation AUSLIG International Symposium on Spatial Data Infrastructure (SDI) 19 - 20 November 2001 University of Melbourne, Australia
• [5] Thierry Gregorius, 1996, Gipsy Oasis II - How it works.