System of geographical location of a radio signal transmitter located on the earth's surface, and associated method of distributed interferometry

摘要

A system of geographical location of at least one radio signal transmitter located on the Earth's surface including: a set of satellites equipped with receiving antennas adapted for receiving said signals, forming a main extended interferometry device; an intersatellite relative metrology device for determining the relative positions of said satellites to one another, including at least one dedicated sensor for each satellite, and intersatellite communication means; a device for dating said received signals from said determining of the relative positions of said satellites to one another, issued by said intersatellite relative metrology device; a secondary interferometry device including at least one set of at least three antennas of a satellite; a ground base station; a device for transmitting measurements acquired on the satellites to the ground base station; and means of determining an absolute position of at least one of the satellites.

主权项

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.