EP 3384241 A1 20181010 - INERTIAL NAVIGATION SYSTEM WITH IMPROVED ACCURACY
Title (en)
INERTIAL NAVIGATION SYSTEM WITH IMPROVED ACCURACY
Title (de)
TRÄGHEITSNAVIGATIONSSYSTEM MIT VERBESSERTER GENAUIGKEIT
Title (fr)
SYSTEME DE NAVIGATION INERTIELLE A PRECISION AMELIOREE
Publication
Application
Priority
- FR 1561888 A 20151204
- EP 2016078957 W 20161128
Abstract (en)
[origin: WO2017093166A1] The invention relates to an inertial navigation system for a carrier comprising a core comprising gyroscopic sensors making it possible to determine the angular velocity thereof according to three axes which define a reference trihedron, two of the axes defining a reference plane and the third axis being perpendicular to said plane. The device comprises command and control means making it possible to rotate the core about the third axis and to determine the direction of the geographic north from the information supplied by the gyroscopic sensors and by an accelerometer placed in the reference plane; the rotation of the core being carried out at a period (T0) for which the value of the Allan variance of the stability error of the gyroscopic sensors is lower than a given value (PG) guaranteeing the accuracy with which the direction of the geographic north can be known.
IPC 8 full level
G01C 21/18 (2006.01); G01C 19/38 (2006.01)
CPC (source: EP US)
G01C 19/38 (2013.01 - EP US); G01C 21/18 (2013.01 - EP US)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017093166 A1 20170608; CN 108603761 A 20180928; EP 3384241 A1 20181010; EP 4403874 A2 20240724; FR 3044756 A1 20170609; FR 3044756 B1 20210319; US 10718614 B2 20200721; US 2018356226 A1 20181213
DOCDB simple family (application)
EP 2016078957 W 20161128; CN 201680081092 A 20161128; EP 16806008 A 20161128; EP 24181600 A 20161128; FR 1561888 A 20151204; US 201615780853 A 20161128