Pspice help: calculating autocorrelation of a time domain voltage

Hi,

 I am new in this forum, and I am asking for your help about how to compute the autocorrelation of a time voltage using Pspice via a macromodelling model or Probe via macros. The autocorrelation R() of a signal v(t) is defined as:

R(t)=(\int v(x) v(x+t) dx)/T

where \int stands for the integral symbol which has to be evaluated on from 0 to T with T the final time of the simulation. I know that a possible solution is to use Matlab anda Pspice together but for the moment I am exploring a Pspice solution only

Beste regards

Carlos