Patent ID: 8952847
Filing Date: 2015-02-10
Classification: B64G,G01S

Abstract:
1. A system for determining a geographical location, the system comprising: at least one radio signal transmitter located on the Earth's surface; a set of satellites comprising receiving antennas configured to receive signals from the at least one radio signal transmitter located on the Earth's surface, the receiving antennas forming a main extended interferometry device; an intersatellite relative metrology device configured to determine relative positions of said satellites to one another, the intersatellite relative metrology device comprising at least one dedicated sensor within each satellite, and comprising an intersatellite communicator; a dating device configured to receive the relative positions of said satellites to one another from said intersatellite relative metrology device; a secondary interferometry device comprising at least one set of at least three antennas within a satellite of the set of satellites, the secondary interferometry device being configured to supply a reference time; a ground base station on the Earth's surface; a transmission device configured to transmit measurements acquired at the set of satellites to the ground base station; and means for determining an absolute position of at least one satellite of the set of satellites.