公开(公告)号：US10761181B2

公开(公告)日：2020-09-01

申请号：US15735734

申请日：2016-06-21

Applicant: INSTITUT MINES-TELECOM

Inventor： Alexandre Vervisch-Picois ,  Nel Samama

IPC: G01S5/10 ,  G01S1/04 ,  G01S1/20

Abstract: A method for locating at least one receiver in a positioning system. The system includes: at least two generators, each generator emitting, on a single carrier, at least two signals that each have a different code, and a receiver configured to detect the signals emitted by the generators. In the method: the receiver measures, for each generator, the phase difference between both signals emitted by the generator, and at least one geometric size, representing the position of the receiver in relation to the generators, is calculated on the basis of the measurements of the phase difference in order to locate the receiver in the positioning system.

公开(公告)号：US20220214459A1

公开(公告)日：2022-07-07

申请号：US17565176

申请日：2021-12-29

Applicant: THALES ,  INSTITUT MINES TELECOM

Inventor： Dominique Heurguier ,  Nel Samama ,  Alexandre Vervisch-Picois

IPC: G01S19/01 ,  G01S19/25 ,  G01S19/29 ,  G01S19/22

Abstract: A method for determining the position of a decoy using at least one receiver, the method includes a step for detecting a decoy attack, a step for correcting the clock bias delivered by the receiver based on an estimated drift (Dj) of the clock of the receiver. The method comprises a step for differential measurements using at least three corrected clock biases (CBjcorr(t″), CBkcorr(t″), CBlcorr(t″)) and a localization step for determining the position of the decoy.

公开(公告)号：US20180341025A1

公开(公告)日：2018-11-29

申请号：US15735675

申请日：2016-06-21

Applicant: INSTITUT MINES- TELECOM

Inventor： Alexandre VERVISCH-PICOIS ,  Nel Samama

IPC: G01S19/44 ,  H04B1/06

Abstract: A method for locating at least one receiver within a positioning system, the system including: at least two transmitters, each transmitter emitting a signal including a carrier modulated by a code, and a receiver that is movable and configured to detect the signals, method in which: during the movement of the receiver from an estimated predefined initial position, consecutive measurements are taken of the phase of the carrier of the signal emitted by each transmitter, for various subsequent positions of the receiver, the variations in the phase of the carrier of the signals between each subsequent position of the receiver for which the phase was measured and the estimated initial position of the receiver is calculated for each transmitter, and these phase variations are used to calculate the variation in distance between the receiver and the transmitters, in order to determine the real initial position of the receiver.