Combined transfer functiom
As all
the stages are linear:
The
gola of the filter is to “equalize” – this means to make the output y(i) to be equal to the input x(i). This
is obtained if:
In
which d(i) is the Dirac’s Delta function (a single sample having unit value, peceded and followed by thousands
of zeroes) – this way
the total effect of the filter+system is simply a delay of a few millisecond, with no other
evident alteration