Precise Onboard Time Synchronization for LEO Satellites
Florian Kunzi, Oliver Montenbruck
Abstract
Next to positioning and navigation, global navigation satellite systems (GNSSs) are widely used for precise timing. In terrestrial applications, time synchronization is crucial for a wide range of critical infrastructure and services, including communication networks, power grids, and financial transactions. Here, GNSS offers an affordable way to achieve time synchronization with respect to Universal Time Coordinated (UTC) with accuracies up to the ten-nanosecond level.
Topics & Concepts
GNSS applicationsGlobal Positioning SystemComputer scienceSatelliteReal-time computingGalileo (satellite navigation)Orbit (dynamics)Synchronization (alternating current)Orbit determinationSatellite navigationRemote sensingGeodesySatellite systemClock synchronizationTelecommunicationsGeographyAerospace engineeringEngineeringChannel (broadcasting)GNSS positioning and interferenceAdvanced Frequency and Time StandardsInertial Sensor and Navigation