摘要：An agreement signed in June 2004 between the European Union and the United States regarding the promotion, provision, and common use of GPS and Galileo has opened a new world of possibilities in satellite navigation.
Simulation studies of the combined use of Galileo and GPS civil signals have demonstrated that users may expect a clear enhancement of performance in terms of positioning accuracy and navigation solution (See the Additional Resources section at the end of this article for further details about these studies). The compatibility and interoperability that the Galileo signal structure will offer with respect to GPS is especially relevant in the E2-L1-E1 band.
