| Autor: |
D'Angelo, P., Pulido, J. A., Guardabrazo, T., Vieira, P., Silva, P., Amarillo, F. |
| Zdroj: |
2012 6th ESA Workshop on Satellite Navigation Technologies (Navitec 2012) & European Workshop on GNSS Signals & Signal Processing; 1/ 1/2012, p1-7, 7p |
| Abstrakt: |
Nowadays the estimation of the differential group delays amongst different navigation signals is performed at the different GNSS Control Centres by processing GNSS multi-frequency observables gathered by ground sensor stations. A significant improvement can be envisaged if the estimation is aided by multi-frequency observables from GNSS receivers onboard LEO (Low Earth Orbit) satellites. This aiding may enable the estimation accuracy to become better than a few centimetres (1-σ) in a 2 hours period, while currently the estimations at the different GNSS Control Centres are approximately 10–15 centimetres (1- σ) accurate. In this paper a prototype for the system defined for the calibration of GNSS Signal In Space Biases Amongst different Frequencies (SISBAF) is described. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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