Method for measuring and processing of thermography data

Abstract

A method for retrieving a useful signal from a bulk response signal emitted by a target subjected to an excitation signal, including: providing a first excitation signal at least modulated at a frequency Flock during a first period of time corresponding to a transient mode of a response signal and causing a first bulk response signal and recording the first bulk response signal; calculating a first Fourier transform of the bulk response signal in response to the first excitation signal during the first period to provide a first spectrum of an exponential term a first spectrum of ambient noise and a first spectrum of a useful signal in the first measured bulk response signal; and extracting the first spectrum of a useful signal through removing the first spectrum of the exponential term from the first Fourier transform.

Dependencies are inferred from the claim text.