Passive Hydrogen Maser (PHM) and Rubidium Atomic Frequency Standard (RAFS) are the two baseline on-board clock technologies for Galileo, the European Global Navigation Satellite System (GNSS), which are currently being validated on-board two experimental spacecrafts, GIOVE-A and GIOVE-B. These two spacecraft are orbiting in a Galileo-representative orbit and transmit Galileo-representative signals that are tracked and collected by a network of evenly distributed sensor stations (the Galileo Experimental Sensor Stations). The collected observables (pseudo-range and carrier phase) are being processed by the GIOVE Processing Centre, providing, as one of its core products, the estimation of the phase offset between the on-board clock and a reference clock, chosen to be an Active Hydrogen Maser connected to one of the sensor stations.
Long-Term Performance Analysis of GIOVE Clocks
2010
11 pages
Report
Keine Angabe
Englisch
In-Orbit Performance Assessment of Giove Clocks
NTIS | 2008
|Estimation and Prediction of the Giove Clocks
NTIS | 2008
|GIOVE Satellites Pseudorange Error Assessment
Online Contents | 2011
|GIOVE-A's Fregat Disposal Assessment
British Library Conference Proceedings | 2009
|GIOVE-B Satellite Design and Performance Validation
British Library Conference Proceedings | 2009
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