Patent ID: 8705597

Claim:
A device for identifying an electronic or electromechanical system, comprising: a noise generator for generating a noise signal (u k ), intended to generate the noise signal at the input of said system; a one-bit analog digital converter, to which an output signal (s k ) of the system is intended to be applied; an estimation device for carrying out an estimation (ĥ) of the impulse response of said system comprising: first calculation means to perform an iterative calculation of a plurality of nh (with nh being an integer) elements (J 0 , . . . , J i, . . . , J nh−1 ) of a given criterion J, each element including at least one correlation term between said signal output from said converter and said noise signal; means for making an estimation (ĥ k ) of the output of said system with the aid of said estimation of the impulse response of said system, said means comprising a second calculation means to apply, to the calculated elements (J 0 , . . . , J i, . . . , J nh−1 ) of said given criterion J, a passage function f predetermined as a function of the noise signal (u k ) transmitted at the input of said system, and such that: f ⁡ ( J ) = ∑ i = 0 nh - 1 ⁢ ⁢ h i ⁢ h ^ i with h i an impulse response element h of said system and ĥ i an element of said impulse response estimation ĥ of said system, wherein the passage function f is a function chosen so that each element Ji of the given criterion J and each element of said impulse response estimation of said system satisfy the relationship ĥ i =(f(J i )), with J i = 1 2 - 1 2 ⁢ ⁢ N ⁢ ∑ N ⁢ s ⁡ ( k ) ⁢ u ⁡ ( k - i ) ⁢ ⁢ or ⁢ ⁢ J i = 1 ⁢ N ⁢ ∑ N ⁢ XOR ⁡ ( s k , u k - i ) , N being a number of samples, k being a moment, s being the output signal, and u being the noise signal.