Purpose
These validation satellites were previously known as the Galileo System Testbed (GSTB) version 2 (GSTB-V2). In 2004 the Galileo System Test Bed Version 1 (GSTB-V1) project validated the on-ground algorithms for Orbit Determination and Time Synchronization (OD&TS). This project, led by ESA and European Satellite Navigation Industries, has provided industry with fundamental knowledge to develop the mission segment of the Galileo positioning system.
GIOVE satellites are transmitting multifrequency ranging signals equivalent to the signals of future Galileo: L1BC, L1A, E6BC, E6A, E5a, E5b. The main purpose of the GIOVE mission is to test and validate the reception and performance of novel code modulations designed for Galileo including new signals based on the use of the BOC (Binary Offset Carrier) technique, in particular the high-performance E5AltBOC signal.
It should be stressed that the role of GIOVE is purely to test transmission and reception of the new signals: these satellites can not be used for navigation even for testing.
Read more about this topic: Giove
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