Patent ID: 9507036
Filing Date: 2016-11-29
CPC Classification: G01S,G01V

Claim Text:
1. A method for inspecting a zone, termed the zone of interest, for detecting at least one element in said zone of interest, a feature of said zone of interest being known, said method comprising: a first detection providing a first signal relating to the position of said element for a first emission point using a first emitter; at least one second detection providing at least one second signal relating to the position of said element for a second emission point different from said first emission point using at least one second emitter; each of said detections comprising at least one iteration of the following operations forming a detection phase: emission of an incident wave emitted by at least one of the first emitter and the at least one second emitter, towards said element from an emission point; measurement, at at least two reception points arranged at a boundary of or outside the zone of interest, of a diffracted portion of said incident wave, termed the diffracted wave, diffracted by said element; detection of the diffracted wave received from at least one receiver being arranged to communicate with at least one of the first emitter and the at least second emitter; determination of a time reversal, termed the reversed wave, of said diffracted wave; and determination, for said emission point, of a detection signal as a function of said incident wave and said reversed wave; said method including a step of multiplying the value of said first signal by the value of said at least one second signal, said multiplication providing a third signal, termed the final signal, relating to the position of said element in said zone of interest; and determination of the position of said element in said zone of interest using data received from said third signal with respect to positional information of said element.