G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 1/04 (2006.01) G01S 1/00 (2006.01) G01S 5/14 (2006.01) G04G 7/02 (2006.01)
Patent
CA 2240866
A method for the real-time determination of a time delay between stations in a radiolocation/radionavigation system. Each station transmits a pseudo-random code and makes the time of satellite retransmission of its code dependent on a reference value. As a result, the delay between the times of reception of the codes in one station corresponds to the time delay between stations. Each station has direct real-time access thereto. The method is useful for radionavigation and radiolocation.
Selon l'invention, chaque station émet un code pseudo-aléatoire et asservit l'instant de réémission de son code par le satellite à une référence. L'écart entre les instants de réception des codes dans une même station correspond alors à l'écart de temps entre stations. Chaque station y a accès directement en temps réel. Application à la radio-navigation et à la radio-localisation.
Centre National D'etudes Spatiales
Goudreau Gage Dubuc
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