EP 2691790 A1 20140205 - POSITIONING SYSTEM INCLUDING A MECHANISM FOR DETECTING FRAUD BY CHECKING THE VISIBILITY OF SATELLITES
Title (en)
POSITIONING SYSTEM INCLUDING A MECHANISM FOR DETECTING FRAUD BY CHECKING THE VISIBILITY OF SATELLITES
Title (de)
POSITIONIERUNGSSYSTEM MIT EINEM MECHANISMUS ZUR ERKENNUNG VON BETRUG MITTELS PRÜFUNG DER SICHTBARKEIT VON SATELLITEN
Title (fr)
SYSTEME DE POSITIONNEMENT AVEC MECANISME DE DETECTION DE FRAUDE PAR VERIFICATION DE LA VISIBILITE DES SATELLITES
Publication
Application
Priority
- FR 1100961 A 20110331
- EP 2012055529 W 20120328
Abstract (en)
[origin: WO2012130889A1] The invention relates to a positioning system comprising at least one GNSS satellite receiver (100) which is located on board a mobile element belonging to a user u and which is used to estimate the position Xu of the mobile element at different moments, and a first processing module (102) that determines a coherence indicator coh(X) by combining the estimated positions Xu[t] and data supplied by secondary information sources (101, 102). A dynamic model for moving the mobile elements to be positioned is used. The indicator is determined by comparing a speed, acceleration, gyration [v, a, g] triplet, derived from direction and speed measurements taken by the mobile element, to a dynamic model for moving an object, vehicle, person or animal to be positioned. The system comprises: a consolidation module (104) including means for storing the positions Xu[t] estimated at different moments t by user u; and a digital filter that can be used to obtain a filtered position Xf[t] from the stored positions Xu[t] of a user, the coherence indicator coh(X) being calculated from the filtered positions Xf[t]. The system further comprises detection means (105) for determining, on the basis of the coherence indicator coh(X), whether or not the estimated positions Xu(t) have been falsified.
IPC 8 full level
G01S 19/21 (2010.01); G07B 15/06 (2011.01)
CPC (source: EP US)
G01S 19/13 (2013.01 - US); G01S 19/215 (2013.01 - EP US); G07B 15/063 (2013.01 - EP US)
Citation (search report)
See references of WO 2012130891A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012130889 A1 20121004; CA 2831856 A1 20121004; CA 2831864 A1 20121004; EP 2691789 A1 20140205; EP 2691789 B1 20170118; EP 2691790 A1 20140205; ES 2621982 T3 20170705; FR 2973518 A1 20121005; US 2014292571 A1 20141002; US 2014320343 A1 20141030; US 9535160 B2 20170103; WO 2012130891 A1 20121004
DOCDB simple family (application)
EP 2012055526 W 20120328; CA 2831856 A 20120328; CA 2831864 A 20120328; EP 12710756 A 20120328; EP 12710757 A 20120328; EP 2012055529 W 20120328; ES 12710756 T 20120328; FR 1100961 A 20110331; US 201214008717 A 20120328; US 201214009040 A 20120328