The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 2020
Filed:
Mar. 08, 2017
Thales, Courbevoie, FR;
Association Pour LA Recherche ET Le Développement DE Méthodes ET Processus Industriels, Armines, Paris, FR;
Noad Hamze El Badaoui, Bourg la Reine, FR;
Pierre Rouchon, Meudon, FR;
Gilles Feugnet, Palaiseau, FR;
Sylvain Schwartz, Palaiseau, FR;
Philippe Martin, Paris, FR;
THALES, Courbevoie, FR;
ASSOCIATION POUR LA RECHERCHE ET LE DÉVELOPPEMENT DE MÉTHODES ET PROCESSUS INDUSTRIELS-ARMINES, Paris, FR;
Abstract
An iterative method for determining scattering coefficients of the cavity of a laser gyro in operation supporting two counter-propagating modes, comprises steps of: determining a set of variables dependent on characteristic physical quantities of the laser gyro, one reference variable per dependency relationship being selected from the variables; measuring values of the characteristic physical quantities of the laser gyro in operation; determining measured values of the variables; estimating, via an iterative method, estimated values of the coefficients minimising a discrepancy between the measured values of the reference variables and estimated values of the reference variables, which are estimated from the values of the coefficients and the measured values of the variables other than the reference variables; and determining estimated values of the scattering coefficients from the estimated values of the coefficients.