Method and Device for use with Analog to Digital Converter

A processing device, comprising:

• an input configured to receive a sampled signal that comprises M original trains of original samples respectively arising from M analog/digital converters with temporal interleaving, M being greater than two, wherein one of the original trains is considered to be a reference train;
• a first processing module comprising an estimation unit configured to perform, for the M−1 other original trains, at least one estimation of a suite of M−1 shift coefficients respectively representative of clock shifts between these M−1 other original trains and the reference train,
• wherein the estimation unit comprises a correlation unit configured to perform a correlation processing involving at least one part of the sampled signal, at least one part of at least one first signal gleaned from a derived signal representative of a temporal derivative of the sampled signal and at least one part of N partial filtered signals respectively representative of N weighted differences between N pairs of bracketing versions flanking the sampled signal, N being greater than or equal to 1;
• and
• wherein the estimation unit further comprises matrix processing unit configured to perform a matrix processing on results of this correlation processing.