H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/185 (2006.01)
Patent
CA 2621797
The invention relates to a method for transmitting signals called wanted signals via a satellite by means of connection stations. To this end, a first connection station (CNX1) carries out the following steps: generating a first service signal on a service carrier frequency denominated pilot signal Fp and transmitting this pilot signal to at least one second connection station (CNX2), and; using this pilot signal for assuring a phase and time synchronization of the signals in order to carry out a transmit diversity, i.e. switching the transmission of the wanted signal by this second connection station without losing phase synchronization between the two stations. The invention applies to satellite signal communications FDMA.
L'invention concerne un procédé d'émission de signaux dits signaux utiles via un satellite au moyen de stations de connexions. A cette fin, une première station de connexion (CNXl) réalise les étapes suivantes : la génération d'un premier signal de service sur une fréquence porteuse de service dénommé signal pilote Fp, et la transmission de ce signal pilote à au moins une deuxième station de connexion (CNX2) ; l'utilisation de ce signal pilote pour assurer une synchronisation de phase et temporelle des signaux afin de mettre en AEuvre une diversité en émission c'est-à-dire de basculer l'émission du signal utile par cette deuxième station de connexion sans perte de synchronisation de phase entre les deux stations. L'invention s'applique aux communications de signaux FDMA par satellites.
Marks & Clerk
Thales
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