Hi ,

I have

**x[t_]:=[1-t]*P[t-0.5] and ** **P[t_]:=\[Piecewise]{**

**{1, Abs[t]£0.5},**

**{0, Abs[t]³0.5}**

**}**

when P represents the Rectangle Function . **In the attached photo you can see the system . **
[b]

**y[t_]:=x[t]+a*n[t];**

and I need to find the cross-corrleation integral (when a=0) of

R_xy

Integral : x(t+taw)*y(t)dt , between (-inf,inf)

and because a=0 , y(t)=x(t-T0)=x(t-4) , so

R_xy

integral : x(t+taw)*x(t-4) , between (-inf,inf)

But I'm having trouble finding out the limits of Taw , meaning the limits of the integral.

hints maybe ? thanks in advance !!