Radio frequency positioning system for vehicles

G - Physics – 01 – S

Patent

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Details

G01S 5/06 (2006.01) B65G 1/06 (2006.01) H01Q 21/06 (2006.01) B62D 1/28 (2006.01) G01S 13/74 (2006.01)

Patent

CA 2751283

A positioning system for vehicles operating at radio frequency comprises at least one antenna (2) mounted on each vehicle (1), one of the reference antennas (3) positioned in known points within an area (4), in the circuit of the reference antennas (3) there may be integrated elements that identify them (28); the antenna (2) consists of a transmitting element (7 - TX) and a receiving element (48 --RX), which may be separate or coincident; the reference antennas (3) consist of retro-directive arrays capable of receiving a radio frequency signal and retransmitting it in the same and contrary direction, in azimuth and/or in elevation, relative to that of the signal received.

L'invention concerne un système de positionnement pour véhicules fonctionnant à une certaine radiofréquence et comprenant au moins une antenne (2) montée sur chaque véhicule (1), une des antennes de référence (3) positionnées dans des points connus à l'intérieur d'une zone (4). Dans le circuit desdites antennes de référence (3), des éléments qui les identifient (28) peuvent être intégrés. L'antenne (2) se compose d'un élément de transmission (7 - TX) et d'un élément de réception (48 - RX), qui peuvent être séparés ou coïncident. Les antennes de référence (3) se composent de réseaux rétrodirectifs capables de recevoir un signal de radiofréquence et de le retransmettre dans la même direction et dans la direction contraire, en azimut et/ou en élévation, par rapport à la direction du signal reçu.

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