Reconfigurable geolocation system

G - Physics – 01 – S

Patent

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Details

G01S 1/68 (2006.01) G01S 5/14 (2006.01) H04B 1/707 (2006.01) G01S 5/02 (2006.01)

Patent

CA 2489089

A portable reconfigurable geolocation system is provided. The system includes a portable user node and one or more portable pseudolite nodes in communication one another and with the user node. Each of the user nodes and pseudolite nodes includes a transmitter that generates a signal on one or more carrier frequencies. Each signal is modulated with digital signals necessary to establish distances between the nodes and to convey data between the nodes. Each node also includes a receiver for receiving and demodulating the signals transmitted between the nodes, and a processor for receiving the demodulated signals, extracting data values and derived values from the demodulated signals and determining a three-dimensional position of each node in the system.

L'invention concerne un système de données à référence géographique portatif et reconfigurable. Le système comprend un noeud utilisateur portatif et un ou plusieurs noeuds pseudolites portatifs en communication les uns avec les autres et avec le noeud utilisateur. Chaque noeud utilisateur et noeud pseudolite comprend un émetteur produisant un signal sur une ou plusieurs fréquences porteuses. Chaque signal est modulé au moyen de signaux numériques nécessaires pour établir des distances entre les noeuds et pour transporter des données entre les noeuds. Chaque noeud comprend également un récepteur permettant de recevoir et de démoduler les signaux émis entre les noeuds, ainsi qu'un processeur permettant de recevoir les signaux démodulés, d'extraire des valeurs de données et des valeurs dérivées des signaux démodulés et de déterminer une position tridimensionnelle de chaque noeud dans le système.

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