Satellite communications system

H - Electricity – 04 – B

Patent

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Details

H04B 7/19 (2006.01) H04B 7/216 (2006.01) H04B 7/185 (2006.01)

Patent

CA 2422601

The invention refers to a satellite communications system with a mobile user terminal. In order to provide a satellite communications system which enables communication with a mobile user terminal via conventional communication satellites on any area of interest on earth, a quasi-geostationary satellite is operated in an inclined orbit and sends a spread downlink signal s'(t) to said area of interest on earth to be received and despreaded by a mobile user terminal.

La présente invention concerne un système de télécommunication par satellite comprenant un terminal d'utilisateur mobile. L'objectif de la présente invention est de mettre au point un système de télécommunication par satellite qui permette d'établir une communication avec un terminal d'utilisateur mobile, par l'intermédiaire de satellites de télécommunication classiques, sur n'importe quelle zone d'intérêt sur terre. A cette fin, un satellite quasi-géostationnaire est mis en fonction dans une orbite inclinée et envoie à la zone d'intérêt sur terre un signal de liaison descendante étalé s'(t), que le terminal d'utilisateur mobile doit recevoir et désétaler.

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