A method 1, wherein {HEAD ~ the coefficients} of said adaptive filter V are adjusted by {TAIL ~ gradient methods} or equivalent methods, based on the minimization of a cost function that measures a statistic dispersion of said output signal 
A method 1 , wherein { HEAD ~ the coefficients } of said adaptive filter V are adjusted by { TAIL ~ gradient methods } or equivalent methods , based on the minimization of a cost function that measures a statistic dispersion of said output signal
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH