H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/12 (2006.01) G08G 3/02 (2006.01) H04B 7/185 (2006.01)
Patent
CA 2732178
The invention relates to a method of recovering a useful signal (S1) received by a satellite (20) which comprises a step of reception by the satellite of a composite signal comprising said useful signal (S1) and so-called collision signals (S2, S3, S4, ...), all of these signals being received simultaneously by the satellite, interfering with each other, and respectively being transmitted by transmitters (E1, E2, E3, E4, ...), characterized in that it comprises the following steps: - direct reception, by at least one station of a terrestrial network (10), of signals corresponding to at least a non-zero portion of said collision signals and referred to as collected collision signals (S2', S3', ...), - for each collected collision signal (S2, S3, ...), estimation, by a processing unit connected to the terrestrial network (10) and to the satellite (20), of this collision signal received by the satellite as a function of: i. the collected collision signal (S2', S3', ...) received directly by the terrestrial station, ii. the position of the transmitter (E2, E3, ...) at the time of transmission of this collision signal, and iii. the position of the satellite (20) during the reception of the composite signal, - extraction of the collected and estimated collision signals (S2,S3, ...), from the composite signal, in order to allow the recovery of the useful signal (S1).
Calmettes Thibaud
Challamel Remi
Marks & Clerk
Thales
LandOfFree
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