Antenna controller

H - Electricity – 01 – Q

Patent

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Details

H01Q 3/02 (2006.01) H01Q 1/32 (2006.01) H01Q 3/04 (2006.01) H01Q 3/10 (2006.01)

Patent

CA 2217930

An antenna controller mounted on a movable body is provided for controlling antenna driving for satellite tracking. The antenna controller comprises a step tracking circuit for performing step tracking operation on a turning face of the movable body while receiving electromagnetic waves from a satellite, and for calculating an antenna direction in which an intensity of the electric wave is strongest. An antenna driving circuit drives the antenna in the antenna direction, while a reference output correcting circuit adds a correction quantity to a reference output of a rate sensor based on a result of the step tracking operation.

L'invention est un contrôleur d'antenne monté sur un corps mobile qui est utilisé pour commander l'orientation d'une antenne afin de poursuivre un satellite. Le contrôleur de l'invention comprend un circuit qui effectue des opérations de poursuite graduées sur une surface tournante du corps mobile tout en recevant des ondes électromagnétiques transmises par le satellite, et qui calcule la direction dans laquelle l'intensité du champ électrique reçu est maximale. Le circuit d'orientation place l'antenne dans cette direction alors qu'un circuit de correction ajoute une correction au signal de sortie d'un capteur de vitesse qui sert de signal de référence, cette correction étant déterminée à partir des résultats des opérations de poursuite graduées.

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