Re: Echo parameter estimation using autocorrelation

ok, i read the text at UCLA. By echoed signal it is meant the original
signal plus it's echo. One way to detect these peaks at N and -N is the
following:

observe that the peak at time lag N is a global maximum of positive time
lag (for positive arguments of the autocorrelation sequence). So by using
the max function of MATLAB for the right half of the autocorrelation
sequence you will find the index N.

same for -N.

Manolis
.