- Tytuł:
- An influence of the covariance between single orbit parameters on the accuracy of observations of the pseudo-ranges and phase differences
- Autorzy:
-
Skeivalas, Jonas
Paršeliūnas, Eimuntas
Putrimas, Raimundas
Šlikas, Dominykas - Powiązania:
- https://bibliotekanauki.pl/articles/221830.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
Global Positioning System
ephemeris
Doppler effect
dispersion
geodesy - Opis:
- The possibilities to improve values of the satellite orbit elements by employing the pseudo-ranges and differences of carrier phase frequencies measured at many reference GPS stations are analysed. An improvement of orbit ephemeris is achieved by solving an equation system of corrections of the pseudo-ranges and phase differences with the least-squares method. Also, equations of space coordinates of satellite orbit points expressed by ephemeris at fixed moments are used. The relation between the accuracy of the pseudo-ranges and phase differences and the accuracy of the satellite ephemeris is analysed. Formulae for estimation of the influence of the ephemeris on the measured pseudo-ranges and phase differences and for prediction of the accuracy of the pseudo-ranges and phase differences were obtained. An influence of the covariance between single orbit parameters on the accuracy of the pseudo-ranges and phase differences is detected.
- Źródło:
-
Metrology and Measurement Systems; 2020, 27, 1; 131-140
0860-8229 - Pojawia się w:
- Metrology and Measurement Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł