METHODS AND APPARATUS FOR MEASURING NAVIGATIONAL PARAMETERS OF A LOCOMOTIVE

The present invention, in one aspect, is a method for determining motion and/or location parameters of a locomotive. One method embodiment includes steps of phase locking a pair of receivers having antennas at different locations on a locomotive to reference signals received from a set of satellites...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZAHM, CHARLES, L, MATHESON, WILLIAM, L, CLYNE, KEVIN, M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ENSURING THE SAFETY OF RAILWAY TRAFFIC GUIDING RAILWAY TRAFFIC LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING OTHER AUXILIARY EQUIPMENT FOR RAILWAYS PERFORMING OPERATIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION RAILWAYS TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention, in one aspect, is a method for determining motion and/or location parameters of a locomotive. One method embodiment includes steps of phase locking a pair of receivers having antennas at different locations on a locomotive to reference signals received from a set of satellites, determining a set of phase differences between the reference signals received at the antennas, and determining at least one of an accurate heading, heading rate, attitude, and attitude rate of the locomotive using the set of phase differences between the reference signals. Selon un aspect, l'invention concerne un procédé permettant de déterminer les paramètres de déplacement et/ou de localisation d'une locomotive. Selon une variante, on procède au verrouillage de phase d'une paire de récepteurs équipés d'antennes en différents points d'une locomotive, sur des signaux de référence reçus depuis une série de satellites, ce qui permet de déterminer un certain nombre de différences de phase entre les signaux de référence reçus par les antennes, et de déterminer au moins l'un des paramètres suivants de la locomotive: cap, variation de cap, attitude, variation d'attitude. On utilise pour cela la série de différences de phase entre les signaux de référence.