Open Access Book
Open Access Book image

Performance of new GNSS satellite clocks

Author: Gonzalez Martinez, Francisco Javier
Source: Directory of Open Access Books
Publisher: KIT Scientific Publishing
ISBN: 9783731501121
Creative Commons Attribution-ShareAlike Image


In Global Navigation Satellite Systems (GNSS), the on-board clocks are a key component from which timing and navigation signals are generated. This thesis reviews the performance of the first Passive Hydrogen Maser (PHM) launched by the Galileo system in 2008; and demonstrates how the new PHM can be consider as the best clock in space, pushing the physical clock error contribution below the noise floor of geodetic time transfer capabilities. Furthermore, overall GNSS clock peformance is reviewed