First Demonstration of Galileo-Only Positioning

摘要

The European satellite navigation system, Galileo, is currently in its in-orbit validation (IOV) phase with a constellation of four satellites. The satellites, launched in pairs on October 21,2011, and October 12,2012, are representative of the full 30-satellite constellation.The IOV satellites will demonstrate that the satellites and the ground segment meet the system's requirements and will validate the system's design before completion of the rest of the constellation.