Precise positioning system for mobile gps users

Details Precise positioning system for mobile gps users Precise positioning system for mobile gps users

G - Physics

01

S

G01S 5/14 (2006.01) G01S 5/00 (2006.01)

Patent

CA 2405054

Multiple geographically fixed reference stations, with precisely known locations, that each receive GPS signals send information to a central processing facility that generates a three dimension topographical gradient map or model of the differences between the known locations and the locations as calculated from the received GPS signals. GPS signals received by mobile users are communicated to the central processing facility whereupon the central processing facility, using the model, generates precise corrected locations of the mobile users which is sent back to the mobile users. The mobile users can use and display the locally generated position from the locally received GPS signals or the corrected position from the central processing facility.

Selon la présente invention, de multiples stations de référence géographiquement fixes, situées en des emplacements connus avec précision, qui reçoivent chacune des signaux GPS (système de positionnement global), envoient des informations à une installation centrale de traitement qui génère une carte ou un modèle tridimensionnel de gradient topographique des différences entre les emplacements connus et les emplacements calculés à partir des signaux GPS reçus. Les signaux GPS reçus par les utilisateus mobiles sont communiqués à l'installation centrale de traitement, laquelle génère, à l'aide du modèle, des emplacements d'utilisateurs mobiles corrigés avec précision qu'elle renvoie aux utilisateurs mobiles. Les utilisateurs mobiles peuvent utiliser et afficher la position générée localement à partir des signaux GPS reçus localement ou la position corrigée en provenance de l'installation centrale de traitement.

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