1 ] : 
— — | Xt) Xr(t—7t)dt |e" dt 
om | oT | mt) X7(t-T) 
1 
=— | Rt) dr, 
= | TT )e 
*Denotes the complex conjugate. 
Here, 
Rr(t) = im cn | XOX Mt —1)dt. 
Accordingly, for the total 
E [P = s(w) = limE 
[Power] (@) oF 
1 7 
= lim — | eE[Rd1)]dt. 
Hie Se | [Rr{T)] 
Since X7(t) was defined as X(t) for —T < t <T, and otherwise 0, 
Ti 
i on | X(t) X(t—Itl)dt, Il<T 
R(t) = 4 2T 
+(T-trl) 
0 i>T 
17 
271X(w)I? 
(2.41) 
(2.42) 
(2.43) 
(2.44) 
