Multipath management for global navigation satellite systems

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United States of America Patent

PATENT NO 11415708
APP PUB NO 20200363535A1
SERIAL NO

16957716

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Abstract

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A positioning device includes a first GNSS receiver; a communication link configured to receive a spatial position, code measurements and carrier phase measurements of a second GNSS receiver; an input interface to a processing logic, the processing logic being configured to: calculate a position of the first positioning device from communicated data; and to estimate one or more parameters representative of multipath at the position of the first positioning device; wherein the communication link is configured to communicate to a second positioning device the parameters representative of multipath at the position of the first positioning device. Described developments comprise the use of multipath severity indicators, the determination of relative distances between receivers, validity conditions in time and/or space of multipath, various embodiments in a train or in a group of vehicles. Software aspects are discussed.

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Patent Owner(s)

Patent OwnerAddress
CENTRE NATIONAL D'ETUDES SPATIALES2 PLACE MAURICE QUENTIN 75039 PARIS CEDEX 01 75039

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Laurichesse, Denis Tournefeuille, FR 12 63
Marmet, François-Xavier Muret, FR 23 96
Rouch, Cédric Toulouse, FR 2 0

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