(t) , , t . X(t) , . (t) , . , .
X(t) t1 :
F(x), , X :
.1. . 2. () ()
, .
. σ2 , τ=|t2-t1|, .. R(t1,t2)=R(τ), . , . R(τ)=R(-τ).
, . (t), .
Wx(ω) - X(t). . W(ω)= . . . : W(ω)≥0.
- -:
W(ω)= R(τ)= .
, G0(f)=N0 ? . G0(f) F, - . Ϭ2=B(0)=N0FB. : B(τ)=δ(τ)*N0/2. : B(τ)=N0FB(sinωτ/ωτ).
, : μ ( ) , σ² .
[a,b], :