, , , :
y(t) = x(t τ), (7.1)
τ , .
, .. , τ. , : - , τ.
(7.2)
, , . : () ( 7.3).
7.3
(7.3)
W(s)=R(s)/Q(s) .
( 7.3,),
(7.4)
,
(7.5)
(7.4) (7.5), , ,
(7.6)
,
(7.6) , . , (8.6) . , . -.
. : Wτ(jω) (3.3) (-1,j0). s = jω (8.3), Wτ(jω)
(7.7)
- - ;
ψ(ω) = arctg (V/U) - ;
ψτ(ω) = ψ(ω) ωτ (7.8)
.
(8.7) (8.8) , (ω) W(jω), ωτ, , τ.
Wτ(jω) (ωi) W(jω) ωiτ . ω ωτ , (ω) . Wτ(jω) , ( 7.4).
|
|
7.4
Wτ(jω) (-1,j0). τ ω, Wτ(jω) (-1,j0) . :
(7.9)
(7.9) :
A(ωkp) = |Wτ(jωkp)| = 1; (7.10)
ψτ(ωkp) = ψ(ωkp) - ωkpτkp = -π(2i + 1), (7.11)
i = 0,1,2,3 .
(7.10) ωkp, (7.11) τ, ..
(7.12)
Min ( i = 0),
(7.13)
φ(ωkp) = π + arctg[V(ωkp)/U(ωkp)] .
:
τkp.
s = jω
(7.10)
>1.
(7.13)
W(jω) , . τ , τ .
,
τ < τmin.