, , () , . ( ) , . .2.6, . . 2.6, , , .
, h(t) y(t) x(t) = 1(t).
() , ( ). . ( , -) . , , , , . .2.4, . . 2.7 .
w(t); δ(t). , w(t) y(t) x(t) = δ(t).
, ,
.
- :
.
:
w(t) = h(t)
.
, , , w(t) = h(t).
, :
, (2.8)
(0) (t) t = 0;
. (2.9)
, , .
, (2.3,):
.
, , :
.
- x(t) y(t); Q(s) R(s) , Q(p) R(p) s = c + jω.
, (2.10)
- ( s).
, x(t) δ(t), , , (2.10) :
|
|
, (2.11)
..
.
, , .. .
, x(t) = 1(t), , L [1(t)] = 1/ s, (2.10) :
.
.
(2.10) (2.11) . (2.10), . (2.11), .
:
. 2.8. .
( ) ε = 1(t) h. . , (ε <> 0) . , ε = 0, .
, .. hmax h.
() T . , Δ. , Δ 5% h.
. T, .
σ, %. :
( 10 30%).
ω = 2π/T0, T0 .
() T , .
8. .
, :
n h(t) 0 T.
1(t) δ(t) :
: d*(t). d*(t) ≈ d(t) (.. d(t) ), w*(t) ≈ w(t). L[w*(t)] = W*(s) ≈ W(s).
: 1(t). h(t) . W(s) = L[d/dt(h(t)].