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:
May. 06, 2014
Filed:
Dec. 11, 2009
Cécile Germond, Paris, FR;
Anne Ferreol, Colombes, FR;
Cécile Germond, Paris, FR;
Anne Ferreol, Colombes, FR;
THALES, Neuilly sur Seine, FR;
Abstract
A method and system for locating an emitter E transmitting a signal toward a receiver A comprising N radio frequency channels (N≧1), the characteristics of said signal being unknown to the receiver and said signal being reflected off P reflectors B(P≧1) of known positions, includes a step of multi-channel joint estimation/detection of the time differences of arrival or TDOA τand of the frequency differences of arrival or FDOA ffor each reflected path, a step of angular estimation of the direction θof the direct path of the signal emitted by a goniometry procedure, and a step of location in the plane of the position (x,y) of the emitter E on the basis, at least, of the pairs (τ, f).