Patent ID: 8847960

Claim:
A method: acquiring a first input digital signal F(t), which is a function of time t, in the form of two-dimensional data (t, F(t)), said signal F(t) resulting from an excitation, within a test substrate, of a substance adapted to emit a signal in response to said excitation; modeling said first input digital signal F(t) in function of a model; generating a first output digital signal I(t) made up from said modeling; wherein said modeling is based on a model of the type: I ⁡ ( t ) = a 0 + ( a 1 - a 0 ) * ( A + ( t a 2 ) p B + ( t a 2 ) q ) wherein: the modeling and generating are performed using a computing device; coefficients a 0 , a 1 , a 2 , p, q, A and B are estimated on the basis of said two-dimensional data; a 1 is a coefficient related to a value of a maximum of the output digital signal I(t); a 0 is a value of the output digital signal I(t); a 2 is a coefficient related to a time of the maximum of the output digital signal I(t); p is a coefficient related to an increase in the output digital signal I(t); q is a coefficient related to an decrease in the output digital signal I(t); and A and B are arbitrary parameters.