Method and apparatus for satellite-based relative...

G - Physics – 01 – S

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G01S 5/14 (2006.01)

Patent

CA 2541199

The present invention is directed to the determination of a relative position between moving platforms, using satellite-based navigation techniques and equipment installed on said platforms. It combines the concepts of observation- space and navigation-space differential systems, and operates a DGNSS base station in a time-varying mode, in order to rely on the built-in differential positioning and navigation capabilities of particular GNSS receivers while minimizing datalink loading and computational load in auxiliary processors. The invention achieves accurate relative positioning and navigation with respect to a moving base station, using DGNSS equipment that assumes it is stationary when operated in a reference station mode.

La présente invention a trait à la détermination d'une position relative entre des plates-formes mobiles, mettant en oeuvre des techniques de navigation par satellite et d'équipement installé sur lesdites plates-formes. Elle combine les concepts de systèmes différentiels d'espace d'observation et d'espace de navigation, et opère une station de base de type DGNSS dans un mode variable dans le temps, afin de s'appuyer sur le positionnement différentiel intégré et des capacités de navigation de récepteurs GNSS particuliers tout en minimisant le chargement de liaisons de données et la charge de calcul dans des processeurs auxiliaires. L'invention réalise un positionnement et une navigation relatifs précis par rapport à une station de base mobile, utilisant un matériel de type DGNSS qui assume qu'il est stationnaire lors de son fonctionnement en mode de station de référence.

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